Bearings - Grooved OD - U Groove

Bearings -> Grooved OD -> U Groove

There are 12 products in the sub-categories of Bearings - Grooved OD - U Groove. Browse the Bearings - Grooved OD - U Groove products table.

Category Details

A selection of U Groove Grooved OD Bearings. Special OD Bearings.

  • Grooved OD bearings include various grrove shapes such as U-Groove, V-Groove, gothic arch and square grooves.
  • These bearings are designed for applications where the outer ring of the bearing interacts with a track or rail to support and guide the movement of the bearing assembly.
  • Some uses include wire straightening, textile machinery, material handling, linear systems, and the printing industry. An expanded range may be available on special order. Please enquire.
  • Contact us for tolerances.

Miniature Bearings Australia - MBA Minibearings

Additional resources:


A more concise listing may be found in the Bearings - Grooved OD - U Groove category on the Small Parts & Bearings online store.
ID (d) OD (D) Width (B) Inner Ring Width (Bn) Groove Base Diameter (GD) Groove Width (GB) Indicative
Image
Grooved OD Bearings - 3x10x4 mm U Groove - Chrome Steel Bearing
ID (d)
3.000
mm

(Equiv. 0.118 in.)
OD (D)
10.000
mm

(Equiv. 0.394 in.)
Width (B)
4.000
mm

(Equiv. 0.157 in.)
Grooved OD Bearings - 3x10x4 mm - Chrome Steel
Material: Chrome Steel    Approx Groove Width: 2.0 mm    Closures: ZZ    Type: U-Groove Profile    Groove Base Diameter (GD): 8.8 mm   
Part Number: U623-ZZ-09-ECO (PK-2)
46 units (92 pcs) Available Now | Further orders can be expected around Fri, Jan 23, 2026
$5.77 AUD
$5.77 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 46 available can be backordered.
ID (d) OD (D) Width (B) Inner Ring Width (Bn) Indicative
Image
Grooved OD Bearings - 3x10x4 mm U Groove - Chrome Steel Bearing
ID (d)
3.000
mm

(Equiv. 0.118 in.)
OD (D)
10.000
mm

(Equiv. 0.394 in.)
Width (B)
4.000
mm

(Equiv. 0.157 in.)
Grooved OD Bearings - 3x10x4 mm - Chrome Steel
Material: Chrome Steel    Approx Groove Width: 2.0 mm    Closures: ZZ    Type: U-Groove Profile    Groove Base Diameter (GD): 8.8 mm   
Part Number: U623-ZZ-09-ECO (PK-2)
46 units (92 pcs) Available Now | Further orders can be expected around Fri, Jan 23, 2026
$5.77 AUD
$5.77 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

46 units (92 pcs) Available Now. Backorder if more than 46.
Grooved OD Bearings - 4x12x4 mm U Groove - Chrome Steel Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
12.000
mm

(Equiv. 0.472 in.)
Width (B)
4.000
mm

(Equiv. 0.157 in.)
Grooved OD Bearings - 4x12x4 mm - Chrome Steel
Material: Chrome Steel    Approx Groove Width: 2.0 mm    Closures: ZZ    Basic Static Load: 15 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 10.0 mm   
Part Number: U604-ZZ-10-ECO (PK-2)
16 units (32 pcs) Available Now | Further orders can be expected around Fri, Jan 23, 2026
$5.23 AUD
$5.23 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 16 available can be backordered.
Grooved OD Bearings - 4x12x4 mm U Groove - Chrome Steel Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
12.000
mm

(Equiv. 0.472 in.)
Width (B)
4.000
mm

(Equiv. 0.157 in.)
Grooved OD Bearings - 4x12x4 mm - Chrome Steel
Material: Chrome Steel    Approx Groove Width: 2.0 mm    Closures: ZZ    Basic Static Load: 15 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 10.0 mm   
Part Number: U604-ZZ-10-ECO (PK-2)
16 units (32 pcs) Available Now | Further orders can be expected around Fri, Jan 23, 2026
$5.23 AUD
$5.23 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

16 units (32 pcs) Available Now. Backorder if more than 16.
Grooved OD Bearings - 4x12x4 mm / 5 mm U Groove - Chrome Steel Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
12.000
mm

(Equiv. 0.472 in.)
Width (B)
4.000
mm

(Equiv. 0.157 in.)
Inner Ring Width (Bn)
5.000
mm
Grooved OD Bearings - 4x12x4 mm / 5 mm - Chrome Steel
Material: Chrome Steel    Approx Groove Width: 2.0 mm    Closures: ZZ    Basic Static Load: 15 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 10.5 mm   
Part Number: UW604A-ZZ-11-ECO (PK-2)
24 units (48 pcs) Available Now | Further orders can be expected around Fri, Jan 23, 2026
$5.23 AUD
$5.23 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 24 available can be backordered.
Grooved OD Bearings - 4x12x4 mm / 5 mm U Groove - Chrome Steel Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
12.000
mm

(Equiv. 0.472 in.)
Width (B)
4.000
mm

(Equiv. 0.157 in.)
Inner Ring Width (Bn)
5.000
mm
Grooved OD Bearings - 4x12x4 mm / 5 mm - Chrome Steel
Material: Chrome Steel    Approx Groove Width: 2.0 mm    Closures: ZZ    Basic Static Load: 15 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 10.5 mm   
Part Number: UW604A-ZZ-11-ECO (PK-2)
24 units (48 pcs) Available Now | Further orders can be expected around Fri, Jan 23, 2026
$5.23 AUD
$5.23 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

24 units (48 pcs) Available Now. Backorder if more than 24.
Grooved OD Bearings - 4x13x4 mm U Groove - Chrome Steel Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
13.000
mm

(Equiv. 0.512 in.)
Width (B)
4.000
mm

(Equiv. 0.157 in.)
Grooved OD Bearings - 4x13x4 mm - Chrome Steel
Material: Chrome Steel    Approx Groove Width: 2.0 mm    Closures: ZZ    Basic Static Load: 15 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 12.0 mm   
Part Number: U624A-ZZ-12-ECO (PK-2)
22 units (44 pcs) Available Now | Further orders can be expected around Fri, Jan 23, 2026
$5.23 AUD
$5.23 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 22 available can be backordered.
Grooved OD Bearings - 4x13x4 mm U Groove - Chrome Steel Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
13.000
mm

(Equiv. 0.512 in.)
Width (B)
4.000
mm

(Equiv. 0.157 in.)
Grooved OD Bearings - 4x13x4 mm - Chrome Steel
Material: Chrome Steel    Approx Groove Width: 2.0 mm    Closures: ZZ    Basic Static Load: 15 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 12.0 mm   
Part Number: U624A-ZZ-12-ECO (PK-2)
22 units (44 pcs) Available Now | Further orders can be expected around Fri, Jan 23, 2026
$5.23 AUD
$5.23 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

22 units (44 pcs) Available Now. Backorder if more than 22.
Grooved OD Bearings - 4x13x4 mm U Groove - Stainless Steel AISI 440C Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
13.000
mm

(Equiv. 0.512 in.)
Width (B)
4.000
mm

(Equiv. 0.157 in.)
Grooved OD Bearings - 4x13x4 mm - Stainless Steel AISI 440C
Material: Stainless Steel AISI 440C    Closures: ZZ    Basic Static Load: 15 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 11.0 mm    Groove Radius (+/- 0.05) (GR): 1.250 mm   
Part Number: US624A-ZZ-11 (Each)
200 Available Now | Further orders can be expected around Mon, Mar 16, 2026
$5.77 AUD
$6.93 AUD $5.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 200 available can be backordered.
Grooved OD Bearings - 4x13x4 mm U Groove - Stainless Steel AISI 440C Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
13.000
mm

(Equiv. 0.512 in.)
Width (B)
4.000
mm

(Equiv. 0.157 in.)
Grooved OD Bearings - 4x13x4 mm - Stainless Steel AISI 440C
Material: Stainless Steel AISI 440C    Closures: ZZ    Basic Static Load: 15 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 11.0 mm    Groove Radius (+/- 0.05) (GR): 1.250 mm   
Part Number: US624A-ZZ-11 (Each)
200 Available Now | Further orders can be expected around Mon, Mar 16, 2026
$5.77 AUD
$6.93 AUD $5.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

200 Available Now. Backorder if more than 200.
Grooved OD Bearings - 4x13x5 mm U Groove - Chrome Steel Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
13.000
mm

(Equiv. 0.512 in.)
Width (B)
5.000
mm

(Equiv. 0.197 in.)
Grooved OD Bearings - 4x13x5 mm - Chrome Steel
Material: Chrome Steel    Closures: ZZ    Basic Static Load: 15 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 12.3 mm    Groove Radius (+/- 0.05) (GR): 0.350 mm   
Deleted Item. Available while stocks last.
Part Number: U624-ZZ-12-ECO (PK-5)
1 pack (5 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (5 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Grooved OD Bearings - 4x13x5 mm U Groove - Chrome Steel Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
13.000
mm

(Equiv. 0.512 in.)
Width (B)
5.000
mm

(Equiv. 0.197 in.)
Grooved OD Bearings - 4x13x5 mm - Chrome Steel
Material: Chrome Steel    Closures: ZZ    Basic Static Load: 15 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 12.3 mm    Groove Radius (+/- 0.05) (GR): 0.350 mm   
Deleted Item. Available while stocks last.
Part Number: U624-ZZ-12-ECO (PK-5)
1 pack (5 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
$8.00 AUD
$15.20 AUD $8.00 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (5 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Grooved OD Bearings - 4x13x7 mm U Groove - Chrome Steel Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
13.000
mm

(Equiv. 0.512 in.)
Width (B)
7.000
mm

(Equiv. 0.276 in.)
Grooved OD Bearings - 4x13x7 mm - Chrome Steel
Material: Chrome Steel    Approx Groove Width: 5.5 mm    Closures: ZZ    Basic Static Load: 15 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 9.0 mm   
Part Number: U624C-ZZ-09-ECO (Each)
50 Available Now | Further orders can be expected around Fri, Jan 23, 2026
$4.14 AUD
$4.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 50 available can be backordered.
Grooved OD Bearings - 4x13x7 mm U Groove - Chrome Steel Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
13.000
mm

(Equiv. 0.512 in.)
Width (B)
7.000
mm

(Equiv. 0.276 in.)
Grooved OD Bearings - 4x13x7 mm - Chrome Steel
Material: Chrome Steel    Approx Groove Width: 5.5 mm    Closures: ZZ    Basic Static Load: 15 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 9.0 mm   
Part Number: U624C-ZZ-09-ECO (Each)
50 Available Now | Further orders can be expected around Fri, Jan 23, 2026
$4.14 AUD
$4.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

50 Available Now. Backorder if more than 50.
Grooved OD Bearings - 4x13x7 mm U Groove - Chrome Steel Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
13.000
mm

(Equiv. 0.512 in.)
Width (B)
7.000
mm

(Equiv. 0.276 in.)
Grooved OD Bearings - 4x13x7 mm - Chrome Steel
Material: Chrome Steel    Approx Groove Width: 5.5 mm    Closures: ZZ    Basic Static Load: 15 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 9.5 mm   
Part Number: U624C-ZZ-10-SG (PK-5)
53 units (265 pcs) Available Now | Further orders can be expected around Fri, Jan 23, 2026
$5.50 AUD
$5.50 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 53 available can be backordered.
Grooved OD Bearings - 4x13x7 mm U Groove - Chrome Steel Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
13.000
mm

(Equiv. 0.512 in.)
Width (B)
7.000
mm

(Equiv. 0.276 in.)
Grooved OD Bearings - 4x13x7 mm - Chrome Steel
Material: Chrome Steel    Approx Groove Width: 5.5 mm    Closures: ZZ    Basic Static Load: 15 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 9.5 mm   
Part Number: U624C-ZZ-10-SG (PK-5)
53 units (265 pcs) Available Now | Further orders can be expected around Fri, Jan 23, 2026
$5.50 AUD
$5.50 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

53 units (265 pcs) Available Now. Backorder if more than 53.
Grooved OD Bearings - 4x16.5x7 mm U Groove - Chrome Steel Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
16.500
mm

(Equiv. 0.65 in.)
Width (B)
7.000
mm

(Equiv. 0.276 in.)
Grooved OD Bearings - 4x16.5x7 mm - Chrome Steel
Material: Chrome Steel    Approx Groove Width: 4.5 mm    Closures: ZZ    Basic Static Load: 15 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 13.5 mm   
Part Number: UMR165-4-ZZ-14-ECO (Each)
38 Available Now | Further orders can be expected around Fri, Jan 23, 2026
$4.14 AUD
$4.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 38 available can be backordered.
Grooved OD Bearings - 4x16.5x7 mm U Groove - Chrome Steel Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
16.500
mm

(Equiv. 0.65 in.)
Width (B)
7.000
mm

(Equiv. 0.276 in.)
Grooved OD Bearings - 4x16.5x7 mm - Chrome Steel
Material: Chrome Steel    Approx Groove Width: 4.5 mm    Closures: ZZ    Basic Static Load: 15 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 13.5 mm   
Part Number: UMR165-4-ZZ-14-ECO (Each)
38 Available Now | Further orders can be expected around Fri, Jan 23, 2026
$4.14 AUD
$4.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

38 Available Now. Backorder if more than 38.
Grooved OD Bearings - 4x18x7 mm / 8 mm U Groove - Chrome Steel Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
18.000
mm

(Equiv. 0.709 in.)
Width (B)
7.000
mm

(Equiv. 0.276 in.)
Inner Ring Width (Bn)
8.000
mm
Grooved OD Bearings - 4x18x7 mm / 8 mm - Chrome Steel
Material: Chrome Steel    Approx Groove Width: 5.0 mm    Closures: ZZ    Basic Static Load: 15 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 13.0 mm   
Part Number: UWMR184A-ZZ-13-ECO (Each)
71 Available Now | Further orders can be expected around Fri, Jan 23, 2026
$4.14 AUD
$4.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 71 available can be backordered.
Grooved OD Bearings - 4x18x7 mm / 8 mm U Groove - Chrome Steel Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
18.000
mm

(Equiv. 0.709 in.)
Width (B)
7.000
mm

(Equiv. 0.276 in.)
Inner Ring Width (Bn)
8.000
mm
Grooved OD Bearings - 4x18x7 mm / 8 mm - Chrome Steel
Material: Chrome Steel    Approx Groove Width: 5.0 mm    Closures: ZZ    Basic Static Load: 15 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 13.0 mm   
Part Number: UWMR184A-ZZ-13-ECO (Each)
71 Available Now | Further orders can be expected around Fri, Jan 23, 2026
$4.14 AUD
$4.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

71 Available Now. Backorder if more than 71.
Grooved OD Bearings - 4x20x5 mm U Groove - Stainless Steel AISI 440C Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
20.000
mm

(Equiv. 0.787 in.)
Width (B)
5.000
mm

(Equiv. 0.197 in.)
Grooved OD Bearings - 4x20x5 mm - Stainless Steel AISI 440C
Material: Stainless Steel AISI 440C    Closures: ZZ    Basic Static Load: 15 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 18.0 mm    Groove Radius (+/- 0.05) (GR): 1.000 mm   
Part Number: USMR204-ZZ-18 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 11, 2026
$1,500.77 AUD
$1,800.93 AUD $1,500.77 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Grooved OD Bearings - 4x20x5 mm U Groove - Stainless Steel AISI 440C Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
20.000
mm

(Equiv. 0.787 in.)
Width (B)
5.000
mm

(Equiv. 0.197 in.)
Grooved OD Bearings - 4x20x5 mm - Stainless Steel AISI 440C
Material: Stainless Steel AISI 440C    Closures: ZZ    Basic Static Load: 15 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 18.0 mm    Groove Radius (+/- 0.05) (GR): 1.000 mm   
Part Number: USMR204-ZZ-18 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Wed, Feb 11, 2026
$1,500.77 AUD
$1,800.93 AUD $1,500.77 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Grooved OD Bearings - 5x16x7 mm / 8 mm U Groove - Chrome Steel Bearing
ID (d)
5.000
mm

(Equiv. 0.197 in.)
OD (D)
16.000
mm

(Equiv. 0.63 in.)
Width (B)
7.000
mm

(Equiv. 0.276 in.)
Inner Ring Width (Bn)
8.000
mm
Grooved OD Bearings - 5x16x7 mm / 8 mm - Chrome Steel
Material: Chrome Steel    Approx Groove Width: 3.0 mm    Closures: ZZ    Basic Static Load: 50 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 13.5 mm   
Part Number: U625A-ZZ-13-ECO (Each)
33 Available Now | Further orders can be expected around Fri, Jan 23, 2026
$4.77 AUD
$4.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 33 available can be backordered.
Grooved OD Bearings - 5x16x7 mm / 8 mm U Groove - Chrome Steel Bearing
ID (d)
5.000
mm

(Equiv. 0.197 in.)
OD (D)
16.000
mm

(Equiv. 0.63 in.)
Width (B)
7.000
mm

(Equiv. 0.276 in.)
Inner Ring Width (Bn)
8.000
mm
Grooved OD Bearings - 5x16x7 mm / 8 mm - Chrome Steel
Material: Chrome Steel    Approx Groove Width: 3.0 mm    Closures: ZZ    Basic Static Load: 50 Kgf    Type: U-Groove Profile    Groove Base Diameter (GD): 13.5 mm   
Part Number: U625A-ZZ-13-ECO (Each)
33 Available Now | Further orders can be expected around Fri, Jan 23, 2026
$4.77 AUD
$4.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

33 Available Now. Backorder if more than 33.