Miniature Bearings Australia - minibearings

Collection: Bearings - Single Row Ball - Unflanged - Precision

Bearings -> Single Row Ball -> Unflanged -> Precision

ID (d)	OD (D)	Width (B)	Inner Ring Width (Bn)	Flange Diameter (DF)	Flange Width (BF)	Indicative Image
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.125} (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 - High Speed Polyamide Cage Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - High Speed Cage
Part Number: MR84A-ZZ-T9H-MC3 Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage Bearing 1 Available Now \| Further orders can be expected around Sat, Oct 11, 2025 Regular price $4.05 AUD Regular price Sale price $4.05 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 1 Available Now. Backorder if more than 1.
ID (d)	OD (D)	Width (B)	Inner Ring Width (Bn)	Indicative Image
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.125} (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 - High Speed Polyamide Cage Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - High Speed Cage
Part Number: MR84A-ZZ-T9H-MC3 Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage Bearing 1 Available Now \| Further orders can be expected around Sat, Oct 11, 2025 Regular price $4.05 AUD Regular price Sale price $4.05 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 1 Available Now. Backorder if more than 1.
MR84A-ZZ-T9H-MC3 --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage Bearing MR84A-ZZ-T9H-MC3 --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage Bearing Regular price $4.05 AUD Regular price Sale price $4.05 AUD Unit price per Excludes GST and overseas Taxes & Duties 1 Available Now
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 8.000 mm (Equiv. 0.315 in.)	Width (B) 3.000 mm (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 - Ceramic Si3N4 Balls Precision Grade: Abec 1 Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Ceramic Hybrid
Part Number: MR84A-CSN-ZZS-ACO-ECO (200 Pcs) Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 - Ceramic Si3N4 Balls Bearing Out of Stock \| Backorder Now \| Orders can be expected around Fri, Oct 17, 2025 Regular price $840.68 AUD Regular price ~~$1,008.82 AUD~~ Sale price $840.68 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 200 Quantity Required Backorder: Out of Stock.
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 8.000 mm (Equiv. 0.315 in.)	Width (B) 3.000 mm (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 - Ceramic Si3N4 Balls Precision Grade: Abec 1 Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Ceramic Hybrid
Part Number: MR84A-CSN-ZZS-ACO-ECO (200 Pcs) Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 - Ceramic Si3N4 Balls Bearing Out of Stock \| Backorder Now \| Orders can be expected around Fri, Oct 17, 2025 Regular price $840.68 AUD Regular price ~~$1,008.82 AUD~~ Sale price $840.68 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 200 Quantity Required Backorder: Out of Stock.
MR84A-CSN-ZZS-ACO-ECO (200 Pcs) --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 - Ceramic Si3N4 Balls Bearing Sale MR84A-CSN-ZZS-ACO-ECO (200 Pcs) --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 - Ceramic Si3N4 Balls Bearing Regular price $840.68 AUD Regular price ~~$1,008.82 AUD~~ Sale price $840.68 AUD Unit price per Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.125} (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: MR84A-ZZ-MC3 Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing 253 Available Now \| Further orders can be expected around Fri, Oct 17, 2025 Regular price $4.32 AUD Regular price Sale price $4.32 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 253 Available Now. Backorder if more than 253.
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.125} (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: MR84A-ZZ-MC3 Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing 253 Available Now \| Further orders can be expected around Fri, Oct 17, 2025 Regular price $4.32 AUD Regular price Sale price $4.32 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 253 Available Now. Backorder if more than 253.
MR84A-ZZ-MC3 --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing MR84A-ZZ-MC3 --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $4.32 AUD Regular price Sale price $4.32 AUD Unit price per Excludes GST and overseas Taxes & Duties 253 Available Now
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.120} (Equiv. 0.118 in.)
Material: Stainless Steel AISI 440C Precision Grade: P6 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: SMR84A-MC3-JP6-L23 (100 Pcs) Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock \| Backorder Now \| Orders can be expected around Tue, Feb 10, 2026 Regular price $419.41 AUD Regular price ~~$503.29 AUD~~ Sale price $419.41 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 100 Quantity Required Backorder: Out of Stock.
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.120} (Equiv. 0.118 in.)
Material: Stainless Steel AISI 440C Precision Grade: P6 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: SMR84A-MC3-JP6-L23 (100 Pcs) Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock \| Backorder Now \| Orders can be expected around Tue, Feb 10, 2026 Regular price $419.41 AUD Regular price ~~$503.29 AUD~~ Sale price $419.41 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 100 Quantity Required Backorder: Out of Stock.
SMR84A-MC3-JP6-L23 (100 Pcs) --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing Sale SMR84A-MC3-JP6-L23 (100 Pcs) --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing Regular price $419.41 AUD Regular price ~~$503.29 AUD~~ Sale price $419.41 AUD Unit price per Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 8.000 mm (Equiv. 0.315 in.)	Width (B) 3.000 mm (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: MR84A-ZZS-ECO (5 Pcs) Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing 40 units (200 pcs) Available Now \| Further orders can be expected around Sat, Oct 11, 2025 Regular price $4.68 AUD Regular price Sale price $4.68 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 5 Quantity Required 40 units (200 pcs) Available Now. Backorder if more than 40.
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 8.000 mm (Equiv. 0.315 in.)	Width (B) 3.000 mm (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: MR84A-ZZS-ECO (5 Pcs) Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing 40 units (200 pcs) Available Now \| Further orders can be expected around Sat, Oct 11, 2025 Regular price $4.68 AUD Regular price Sale price $4.68 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 5 Quantity Required 40 units (200 pcs) Available Now. Backorder if more than 40.
MR84A-ZZS-ECO (5 Pcs) --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing MR84A-ZZS-ECO (5 Pcs) --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $4.68 AUD Regular price Sale price $4.68 AUD Unit price per Excludes GST and overseas Taxes & Duties 40 Available Now
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.120} (Equiv. 0.118 in.)
Material: Stainless Steel AISI 440C Precision Grade: P6 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: SMR84A-MC3-JP6-AF12 Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock \| Backorder Now \| More stock due: 50 around Thu, Sep 18, 2025 \| Further orders can be expected around Tue, Dec 02, 2025 Regular price $8.86 AUD Regular price Sale price $8.86 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required Backorder: Out of Stock.
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.120} (Equiv. 0.118 in.)
Material: Stainless Steel AISI 440C Precision Grade: P6 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: SMR84A-MC3-JP6-AF12 Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock \| Backorder Now \| More stock due: 50 around Thu, Sep 18, 2025 \| Further orders can be expected around Tue, Dec 02, 2025 Regular price $8.86 AUD Regular price Sale price $8.86 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required Backorder: Out of Stock.
SMR84A-MC3-JP6-AF12 --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing SMR84A-MC3-JP6-AF12 --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing Regular price $8.86 AUD Regular price Sale price $8.86 AUD Unit price per Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.120} (Equiv. 0.118 in.)
Material: Stainless Steel AISI 440C Precision Grade: P6 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: SMR84A-ZZ-MC3-JP6 (100 Pcs) Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock \| Backorder Now \| Orders can be expected around Fri, Oct 17, 2025 Regular price $838.77 AUD Regular price Sale price $838.77 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 100 Quantity Required Backorder: Out of Stock.
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.120} (Equiv. 0.118 in.)
Material: Stainless Steel AISI 440C Precision Grade: P6 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: SMR84A-ZZ-MC3-JP6 (100 Pcs) Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock \| Backorder Now \| Orders can be expected around Fri, Oct 17, 2025 Regular price $838.77 AUD Regular price Sale price $838.77 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 100 Quantity Required Backorder: Out of Stock.
SMR84A-ZZ-MC3-JP6 (100 Pcs) --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing SMR84A-ZZ-MC3-JP6 (100 Pcs) --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing Regular price $838.77 AUD Regular price Sale price $838.77 AUD Unit price per Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.125} (Equiv. 0.118 in.)
Material: Stainless Steel AISI 440C Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: SMR84A-ZZ-MC3 Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing 129 Available Now \| Further orders can be expected around Sat, Oct 11, 2025 Regular price $6.86 AUD Regular price Sale price $6.86 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 129 Available Now. Backorder if more than 129.
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 8.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.315 in.)	Width (B) 3.000 mm _{+ 0.000 / - 0.125} (Equiv. 0.118 in.)
Material: Stainless Steel AISI 440C Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: SMR84A-ZZ-MC3 Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing 129 Available Now \| Further orders can be expected around Sat, Oct 11, 2025 Regular price $6.86 AUD Regular price Sale price $6.86 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 129 Available Now. Backorder if more than 129.
SMR84A-ZZ-MC3 --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing SMR84A-ZZ-MC3 --- Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing Regular price $6.86 AUD Regular price Sale price $6.86 AUD Unit price per Excludes GST and overseas Taxes & Duties 129 Available Now
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 8.000 mm (Equiv. 0.315 in.)	Width (B) 5.000 mm (Equiv. 0.197 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: MR84D-ZZS-ECO Single Row Ball Bearings - 4x8x5 mm Unflanged - Chrome Steel SAE 52100 Bearing 16 Available Now \| Item Discontinued - Up to 16 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $8.00 AUD Regular price ~~$15.20 AUD~~ Sale price $8.00 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 16 Available Now. These are priced to quit. Please contact us for a quote if you require more.
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 8.000 mm (Equiv. 0.315 in.)	Width (B) 5.000 mm (Equiv. 0.197 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: MR84D-ZZS-ECO Single Row Ball Bearings - 4x8x5 mm Unflanged - Chrome Steel SAE 52100 Bearing 16 Available Now \| Item Discontinued - Up to 16 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $8.00 AUD Regular price ~~$15.20 AUD~~ Sale price $8.00 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 16 Available Now. These are priced to quit. Please contact us for a quote if you require more.
MR84D-ZZS-ECO --- Single Row Ball Bearings - 4x8x5 mm Unflanged - Chrome Steel SAE 52100 Bearing Sale MR84D-ZZS-ECO --- Single Row Ball Bearings - 4x8x5 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $8.00 AUD Regular price ~~$15.20 AUD~~ Sale price $8.00 AUD Unit price per Excludes GST and overseas Taxes & Duties 16 Available Now Sale
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 9.000 mm (Equiv. 0.354 in.)	Width (B) 2.500 mm (Equiv. 0.098 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684-ZZS-ECO Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing 19 Available Now \| Further orders can be expected around Sat, Oct 11, 2025 Regular price $2.14 AUD Regular price Sale price $2.14 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 19 Available Now. Backorder if more than 19.
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 9.000 mm (Equiv. 0.354 in.)	Width (B) 2.500 mm (Equiv. 0.098 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684-ZZS-ECO Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing 19 Available Now \| Further orders can be expected around Sat, Oct 11, 2025 Regular price $2.14 AUD Regular price Sale price $2.14 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 19 Available Now. Backorder if more than 19.
684-ZZS-ECO --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing 684-ZZS-ECO --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $2.14 AUD Regular price Sale price $2.14 AUD Unit price per Excludes GST and overseas Taxes & Duties 19 Available Now
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 2.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.098 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Abec 1 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684-MC3-AF12 Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing 1 Available Now \| More stock due: 100 around Mon, Oct 06, 2025 \| Further orders can be expected around Fri, Oct 17, 2025 Regular price $4.41 AUD Regular price Sale price $4.41 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 1 Available Now. Backorder if more than 1.
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 2.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.098 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Abec 1 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684-MC3-AF12 Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing 1 Available Now \| More stock due: 100 around Mon, Oct 06, 2025 \| Further orders can be expected around Fri, Oct 17, 2025 Regular price $4.41 AUD Regular price Sale price $4.41 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 1 Available Now. Backorder if more than 1.
684-MC3-AF12 --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing 684-MC3-AF12 --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $4.41 AUD Regular price Sale price $4.41 AUD Unit price per Excludes GST and overseas Taxes & Duties 1 Available Now
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 2.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.098 in.)
Material: Stainless Steel AISI 440C Precision Grade: Abec 1 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: S684-MC2-AF12 (100 Pcs) Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock \| Backorder Now \| Orders can be expected around Fri, Oct 17, 2025 Regular price $352.14 AUD Regular price ~~$422.56 AUD~~ Sale price $352.14 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 100 Quantity Required Backorder: Out of Stock.
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 2.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.098 in.)
Material: Stainless Steel AISI 440C Precision Grade: Abec 1 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: S684-MC2-AF12 (100 Pcs) Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock \| Backorder Now \| Orders can be expected around Fri, Oct 17, 2025 Regular price $352.14 AUD Regular price ~~$422.56 AUD~~ Sale price $352.14 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 100 Quantity Required Backorder: Out of Stock.
S684-MC2-AF12 (100 Pcs) --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing Sale S684-MC2-AF12 (100 Pcs) --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing Regular price $352.14 AUD Regular price ~~$422.56 AUD~~ Sale price $352.14 AUD Unit price per Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 2.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.098 in.)
Material: Stainless Steel AISI 440C Precision Grade: Abec 1 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: S684-MC3-R-AF12 Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing 469 Available Now \| Further orders can be expected around Sat, Oct 11, 2025 Regular price $8.95 AUD Regular price Sale price $8.95 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 469 Available Now. Backorder if more than 469.
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 2.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.098 in.)
Material: Stainless Steel AISI 440C Precision Grade: Abec 1 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: S684-MC3-R-AF12 Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing 469 Available Now \| Further orders can be expected around Sat, Oct 11, 2025 Regular price $8.95 AUD Regular price Sale price $8.95 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 469 Available Now. Backorder if more than 469.
S684-MC3-R-AF12 --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing S684-MC3-R-AF12 --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing Regular price $8.95 AUD Regular price Sale price $8.95 AUD Unit price per Excludes GST and overseas Taxes & Duties 469 Available Now
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.354 in.)	Width (B) 2.500 mm _{+ 0.000 / - 0.120} (Equiv. 0.098 in.)
Material: Stainless Steel AISI 440C Precision Grade: P6 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: S684-MC3-JP6-AF12 (100 Pcs) Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock \| Backorder Now \| Orders can be expected around Fri, Oct 17, 2025 Regular price $724.59 AUD Regular price Sale price $724.59 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 100 Quantity Required Backorder: Out of Stock.
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.354 in.)	Width (B) 2.500 mm _{+ 0.000 / - 0.120} (Equiv. 0.098 in.)
Material: Stainless Steel AISI 440C Precision Grade: P6 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: S684-MC3-JP6-AF12 (100 Pcs) Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing Out of Stock \| Backorder Now \| Orders can be expected around Fri, Oct 17, 2025 Regular price $724.59 AUD Regular price Sale price $724.59 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 100 Quantity Required Backorder: Out of Stock.
S684-MC3-JP6-AF12 (100 Pcs) --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing S684-MC3-JP6-AF12 (100 Pcs) --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing Regular price $724.59 AUD Regular price Sale price $724.59 AUD Unit price per Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 2.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.098 in.)
Material: Stainless Steel AISI 440C Precision Grade: Abec 1 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: S684-MC3-AF12 Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing 13 Available Now \| Further orders can be expected around Fri, Oct 17, 2025 Regular price $3.68 AUD Regular price Sale price $3.68 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 13 Available Now. Backorder if more than 13.
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 2.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.098 in.)
Material: Stainless Steel AISI 440C Precision Grade: Abec 1 Closure Type: Open Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: S684-MC3-AF12 Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing 13 Available Now \| Further orders can be expected around Fri, Oct 17, 2025 Regular price $3.68 AUD Regular price Sale price $3.68 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 13 Available Now. Backorder if more than 13.
S684-MC3-AF12 --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing S684-MC3-AF12 --- Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing Regular price $3.68 AUD Regular price Sale price $3.68 AUD Unit price per Excludes GST and overseas Taxes & Duties 13 Available Now
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 9.000 mm (Equiv. 0.354 in.)	Width (B) 3.000 mm (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684D-ZZS-ECO Single Row Ball Bearings - 4x9x3 mm Unflanged - Chrome Steel SAE 52100 Bearing Contact Us \| Special Order Only - Please contact us if you need a large quantity
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 9.000 mm (Equiv. 0.354 in.)	Width (B) 3.000 mm (Equiv. 0.118 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684D-ZZS-ECO Single Row Ball Bearings - 4x9x3 mm Unflanged - Chrome Steel SAE 52100 Bearing Contact Us \| Special Order Only - Please contact us if you need a large quantity \| Orders can be expected around Thu, Jun 08, 2028
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 3.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.138 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684B-ZZ-MC3 Single Row Ball Bearings - 4x9x3.5 mm Unflanged - Chrome Steel SAE 52100 Bearing 270 Available Now \| Further orders can be expected around Fri, Oct 17, 2025 Regular price $5.86 AUD Regular price Sale price $5.86 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 270 Available Now. Backorder if more than 270.
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 3.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.138 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684B-ZZ-MC3 Single Row Ball Bearings - 4x9x3.5 mm Unflanged - Chrome Steel SAE 52100 Bearing 270 Available Now \| Further orders can be expected around Fri, Oct 17, 2025 Regular price $5.86 AUD Regular price Sale price $5.86 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 270 Available Now. Backorder if more than 270.
684B-ZZ-MC3 --- Single Row Ball Bearings - 4x9x3.5 mm Unflanged - Chrome Steel SAE 52100 Bearing 684B-ZZ-MC3 --- Single Row Ball Bearings - 4x9x3.5 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $5.86 AUD Regular price Sale price $5.86 AUD Unit price per Excludes GST and overseas Taxes & Duties 270 Available Now
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 3.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.138 in.)
Material: Stainless Steel AISI 440C Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: S684B-ZZ-MC3 Single Row Ball Bearings - 4x9x3.5 mm Unflanged - Stainless Steel AISI 440C Bearing 97 Available Now \| Further orders can be expected around Fri, Oct 17, 2025 Regular price $5.32 AUD Regular price Sale price $5.32 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 97 Available Now. Backorder if more than 97.
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 3.500 mm _{+ 0.000 / - 0.125} (Equiv. 0.138 in.)
Material: Stainless Steel AISI 440C Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless
Part Number: S684B-ZZ-MC3 Single Row Ball Bearings - 4x9x3.5 mm Unflanged - Stainless Steel AISI 440C Bearing 97 Available Now \| Further orders can be expected around Fri, Oct 17, 2025 Regular price $5.32 AUD Regular price Sale price $5.32 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 97 Available Now. Backorder if more than 97.
S684B-ZZ-MC3 --- Single Row Ball Bearings - 4x9x3.5 mm Unflanged - Stainless Steel AISI 440C Bearing S684B-ZZ-MC3 --- Single Row Ball Bearings - 4x9x3.5 mm Unflanged - Stainless Steel AISI 440C Bearing Regular price $5.32 AUD Regular price Sale price $5.32 AUD Unit price per Excludes GST and overseas Taxes & Duties 97 Available Now
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 9.000 mm (Equiv. 0.354 in.)	Width (B) 4.000 mm (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-ZZS-ECO (5 Pcs) Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 4 units (20 pcs) Available Now \| Item Discontinued - Up to 4 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $3.49 AUD Regular price ~~$6.45 AUD~~ Sale price $3.49 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 5 Quantity Required 4 units (20 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 9.000 mm (Equiv. 0.354 in.)	Width (B) 4.000 mm (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: ZZS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-ZZS-ECO (5 Pcs) Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 4 units (20 pcs) Available Now \| Item Discontinued - Up to 4 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $3.49 AUD Regular price ~~$6.45 AUD~~ Sale price $3.49 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 5 Quantity Required 4 units (20 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
684A-ZZS-ECO (5 Pcs) --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Sale 684A-ZZS-ECO (5 Pcs) --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $3.49 AUD Regular price ~~$6.45 AUD~~ Sale price $3.49 AUD Unit price per Excludes GST and overseas Taxes & Duties 4 Available Now Sale
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 9.000 mm (Equiv. 0.354 in.)	Width (B) 4.000 mm (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: 2RS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-2RS-ECO Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Out of Stock \| Backorder Now \| Orders can be expected around Mon, Oct 20, 2025 Regular price $4.50 AUD Regular price Sale price $4.50 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required Backorder: Out of Stock.
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 9.000 mm (Equiv. 0.354 in.)	Width (B) 4.000 mm (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: 2RS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-2RS-ECO Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Out of Stock \| Backorder Now \| Orders can be expected around Mon, Oct 20, 2025 Regular price $4.50 AUD Regular price Sale price $4.50 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required Backorder: Out of Stock.
684A-2RS-ECO --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 684A-2RS-ECO --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $4.50 AUD Regular price Sale price $4.50 AUD Unit price per Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 9.000 mm (Equiv. 0.354 in.)	Width (B) 4.000 mm (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: 2RB Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-2RB-ECO Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 750 Available Now \| Further orders can be expected around Sat, Oct 11, 2025 Regular price $2.23 AUD Regular price Sale price $2.23 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 750 Available Now. Backorder if more than 750.
ID (d) 4.000 mm (Equiv. 0.157 in.)	OD (D) 9.000 mm (Equiv. 0.354 in.)	Width (B) 4.000 mm (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Economy Closure Type: 2RB Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-2RB-ECO Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 750 Available Now \| Further orders can be expected around Sat, Oct 11, 2025 Regular price $2.23 AUD Regular price Sale price $2.23 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 750 Available Now. Backorder if more than 750.
684A-2RB-ECO --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 684A-2RB-ECO --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $2.23 AUD Regular price Sale price $2.23 AUD Unit price per Excludes GST and overseas Taxes & Duties 750 Available Now
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 4.000 mm _{+ 0.000 / - 0.125} (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-ZZ-MC3 (2 Pcs) Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 299 units (598 pcs) Available Now \| Further orders can be expected around Fri, Oct 17, 2025 Regular price $6.95 AUD Regular price Sale price $6.95 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 2 Quantity Required 299 units (598 pcs) Available Now. Backorder if more than 299.
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 4.000 mm _{+ 0.000 / - 0.125} (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Abec 1 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-ZZ-MC3 (2 Pcs) Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 299 units (598 pcs) Available Now \| Further orders can be expected around Fri, Oct 17, 2025 Regular price $6.95 AUD Regular price Sale price $6.95 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 2 Quantity Required 299 units (598 pcs) Available Now. Backorder if more than 299.
684A-ZZ-MC3 (2 Pcs) --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 684A-ZZ-MC3 (2 Pcs) --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $6.95 AUD Regular price Sale price $6.95 AUD Unit price per Excludes GST and overseas Taxes & Duties 299 Available Now
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.354 in.)	Width (B) 4.000 mm _{+ 0.000 / - 0.120} (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: P6 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-ZZ-MC3-JP6 (100 Pcs) Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Out of Stock \| Backorder Now \| Orders can be expected around Fri, Oct 17, 2025 Regular price $453.23 AUD Regular price ~~$543.87 AUD~~ Sale price $453.23 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 100 Quantity Required Backorder: Out of Stock.
ID (d) 4.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.007} (Equiv. 0.354 in.)	Width (B) 4.000 mm _{+ 0.000 / - 0.120} (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: P6 Closure Type: ZZ Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-ZZ-MC3-JP6 (100 Pcs) Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Out of Stock \| Backorder Now \| Orders can be expected around Fri, Oct 17, 2025 Regular price $453.23 AUD Regular price ~~$543.87 AUD~~ Sale price $453.23 AUD Unit price per Excludes GST and overseas Taxes & Duties Per 100 Quantity Required Backorder: Out of Stock.
684A-ZZ-MC3-JP6 (100 Pcs) --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Sale 684A-ZZ-MC3-JP6 (100 Pcs) --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $453.23 AUD Regular price ~~$543.87 AUD~~ Sale price $453.23 AUD Unit price per Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 4.000 mm _{+ 0.000 / - 0.125} (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Abec 1 Closure Type: 2RS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-2RS-MC3 Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 73 Available Now \| Further orders can be expected around Fri, Oct 17, 2025 Regular price $6.41 AUD Regular price Sale price $6.41 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 73 Available Now. Backorder if more than 73.
ID (d) 4.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.157 in.)	OD (D) 9.000 mm _{+ 0.000 / - 0.0075} (Equiv. 0.354 in.)	Width (B) 4.000 mm _{+ 0.000 / - 0.125} (Equiv. 0.157 in.)
Material: Chrome Steel SAE 52100 Precision Grade: Abec 1 Closure Type: 2RS Bearing Type: Radial Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel
Part Number: 684A-2RS-MC3 Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 73 Available Now \| Further orders can be expected around Fri, Oct 17, 2025 Regular price $6.41 AUD Regular price Sale price $6.41 AUD Unit price per Excludes GST and overseas Taxes & Duties Each Quantity Required 73 Available Now. Backorder if more than 73.
684A-2RS-MC3 --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing 684A-2RS-MC3 --- Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing Regular price $6.41 AUD Regular price Sale price $6.41 AUD Unit price per Excludes GST and overseas Taxes & Duties 73 Available Now

Miniature Bearings Australia Pty Ltd
3/8 Boyland Avenue
Coopers Plains, Queensland, Australia.
(ABN: 94 069 113 800)