Collection: Balls - Metallic - Chrome Steel

Balls -> Metallic -> Chrome Steel

There are 74 products in the sub-categories of Balls - Metallic - Chrome Steel. Scroll down or follow the link to Balls - Metallic - Chrome Steel in the products table to see all these items combined into a handy table with filters.

Category Details

A selection of Chrome Steel Metallic Balls. Hardness: Rockwell C: 60-70.

  • Grades shown are AFBMA and ISO3290-1 which relates primarily to the ovality of the ball rather than the diametrical tolerance
  • General balls offered for sale may be from different ball lots, so the diametrical tolerance shown, indicates a variance that might be encountered if balls of different gauges are mixed, unless a ball gauge is specified for the part.
  • For diametrically critical applications, a special quote can be obtained for balls of a specified ball gauge.
  • SAE 52100 Chrome Steel.
  • Hardness: Rockwell C: 60-70.
  • Specific Gravity: 7.833.

Miniature Bearings Australia - MBA Minibearings

Additional resources:


A more concise listing may be found in the Balls - Metallic - Chrome Steel category on the Small Parts & Bearings online store.
Diameter (D) Material Precision Hardness Properties Colour Indicative
Image
Diameter (D)
1.000
mm
+/- 0.00254
(Equiv. 0.039 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 16

Hardness
60-70 Rockwell C
Properties
Commonly used in precision bearings.
Colour
Silver
Metallic Balls - 1 mm SAE52100 Chrome - Grade 16
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.00040   
Part Number: BL-00100-CH-G16 (100 Pcs)
Metallic Balls - 1 mm SAE52100 Chrome - ISO 3290 Grade 16 Ball
102 units (10200 pcs) Available Now | Further orders can be expected around Fri, Oct 31, 2025
Regular price $7.68 AUD
Regular price Sale price $7.68 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

102 units (10200 pcs) Available Now. Backorder if more than 102.
Diameter (D) Material Precision Hardness Indicative
Image
Diameter (D)
1.000
mm
+/- 0.00254
(Equiv. 0.039 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 16

Hardness
60-70 Rockwell C
Metallic Balls - 1 mm SAE52100 Chrome - Grade 16
Material: Chrome Steel SAE 52100    Properties: Commonly used in precision bearings.    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.00040   
Part Number: BL-00100-CH-G16 (100 Pcs)
Metallic Balls - 1 mm SAE52100 Chrome - ISO 3290 Grade 16 Ball
102 units (10200 pcs) Available Now | Further orders can be expected around Fri, Oct 31, 2025
Regular price $7.68 AUD
Regular price Sale price $7.68 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

102 units (10200 pcs) Available Now. Backorder if more than 102.
Diameter (D)
1.191
mm
+/- 0.000762
(Equiv. 0.047 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 3

Hardness
60-70 Rockwell C
Properties
Commonly used in precision bearings.
Colour
Silver
Metallic Balls - 1.191 mm SAE52100 Chrome - Grade 3
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.00008   
Part Number: BL-00119-CH-G3 (100 Pcs)
Metallic Balls - 1.191 mm SAE52100 Chrome - ISO 3290 Grade 3 Ball
Out of Stock | Backorder Now | Orders can be expected around Tue, Nov 11, 2025
Regular price $41.05 AUD
Regular price $96.31 AUD Sale price $41.05 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
1.191
mm
+/- 0.000762
(Equiv. 0.047 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 3

Hardness
60-70 Rockwell C
Metallic Balls - 1.191 mm SAE52100 Chrome - Grade 3
Material: Chrome Steel SAE 52100    Properties: Commonly used in precision bearings.    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.00008   
Part Number: BL-00119-CH-G3 (100 Pcs)
Metallic Balls - 1.191 mm SAE52100 Chrome - ISO 3290 Grade 3 Ball
Out of Stock | Backorder Now | Orders can be expected around Tue, Nov 11, 2025
Regular price $41.05 AUD
Regular price $96.31 AUD Sale price $41.05 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
1.200
mm
+/- 0.00254
(Equiv. 0.047 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 28

Hardness
60-70 Rockwell C
Properties
Commonly used in precision bearings.
Colour
Silver
Metallic Balls - 1.2 mm SAE52100 Chrome - Grade 28
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.00070   
Part Number: BL-00120-CH-G28 (100 Pcs)
Metallic Balls - 1.2 mm SAE52100 Chrome - ISO 3290 Grade 28 Ball
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 31, 2025
Regular price $7.95 AUD
Regular price $18.40 AUD Sale price $7.95 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
1.200
mm
+/- 0.00254
(Equiv. 0.047 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 28

Hardness
60-70 Rockwell C
Metallic Balls - 1.2 mm SAE52100 Chrome - Grade 28
Material: Chrome Steel SAE 52100    Properties: Commonly used in precision bearings.    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.00070   
Part Number: BL-00120-CH-G28 (100 Pcs)
Metallic Balls - 1.2 mm SAE52100 Chrome - ISO 3290 Grade 28 Ball
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 31, 2025
Regular price $7.95 AUD
Regular price $18.40 AUD Sale price $7.95 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
1.500
mm
+/- 0.1270
(Equiv. 0.059 in.)
Material
SAE52100 Chrome

Precision
AFBMA Grade 2000

Hardness
60-70 Rockwell C
Properties
1 KG = Approx 70,000 Balls
Colour
Silver
Metallic Balls - 1.5 mm SAE52100 Chrome - Grade 2000
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.05080   
Part Number: BL-00150-CH-G2000-1KG (KG)
Metallic Balls - 1.5 mm SAE52100 Chrome - AFBMA Grade 2000 Ball
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 31, 2025
Regular price $61.32 AUD
Regular price $141.80 AUD Sale price $61.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
1.500
mm
+/- 0.1270
(Equiv. 0.059 in.)
Material
SAE52100 Chrome

Precision
AFBMA Grade 2000

Hardness
60-70 Rockwell C
Metallic Balls - 1.5 mm SAE52100 Chrome - Grade 2000
Material: Chrome Steel SAE 52100    Properties: 1 KG = Approx 70,000 Balls    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.05080   
Part Number: BL-00150-CH-G2000-1KG (KG)
Metallic Balls - 1.5 mm SAE52100 Chrome - AFBMA Grade 2000 Ball
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 31, 2025
Regular price $61.32 AUD
Regular price $141.80 AUD Sale price $61.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
1.500
mm
+/- 0.00254
(Equiv. 0.059 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 28

Hardness
60-70 Rockwell C
Properties
Commonly used in precision bearings.
Colour
Silver
Metallic Balls - 1.5 mm SAE52100 Chrome - Grade 28
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.00070   
Part Number: BL-00150-CH-G28 (100 Pcs)
Metallic Balls - 1.5 mm SAE52100 Chrome - ISO 3290 Grade 28 Ball
Out of Stock | Backorder Now | Orders can be expected around Tue, Nov 11, 2025
Regular price $19.50 AUD
Regular price $45.69 AUD Sale price $19.50 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
1.500
mm
+/- 0.00254
(Equiv. 0.059 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 28

Hardness
60-70 Rockwell C
Metallic Balls - 1.5 mm SAE52100 Chrome - Grade 28
Material: Chrome Steel SAE 52100    Properties: Commonly used in precision bearings.    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.00070   
Part Number: BL-00150-CH-G28 (100 Pcs)
Metallic Balls - 1.5 mm SAE52100 Chrome - ISO 3290 Grade 28 Ball
Out of Stock | Backorder Now | Orders can be expected around Tue, Nov 11, 2025
Regular price $19.50 AUD
Regular price $45.69 AUD Sale price $19.50 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
1.588
mm
+/- 0.1270
(Equiv. 0.063 in.)
Material
SAE52100 Chrome

Precision
AFBMA Grade 1000

Hardness
60-70 Rockwell C
Properties
Commonly used in grinding applications
Colour
Silver
Metallic Balls - 1.588 mm SAE52100 Chrome - Grade 1000
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.0254   
Part Number: BL-00159-CH-G1000B (10 Pcs)
Metallic Balls - 1.588 mm SAE52100 Chrome - AFBMA Grade 1000 Ball
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 31, 2025
Regular price $415.05 AUD
Regular price $974.28 AUD Sale price $415.05 AUD
10 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
1.588
mm
+/- 0.1270
(Equiv. 0.063 in.)
Material
SAE52100 Chrome

Precision
AFBMA Grade 1000

Hardness
60-70 Rockwell C
Metallic Balls - 1.588 mm SAE52100 Chrome - Grade 1000
Material: Chrome Steel SAE 52100    Properties: Commonly used in grinding applications    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.0254   
Part Number: BL-00159-CH-G1000B (10 Pcs)
Metallic Balls - 1.588 mm SAE52100 Chrome - AFBMA Grade 1000 Ball
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 31, 2025
Regular price $415.05 AUD
Regular price $974.28 AUD Sale price $415.05 AUD
10 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
1.588
mm
+/- 0.00254
(Equiv. 0.063 in.)
Material
SAE52100 Chrome

Precision
AFBMA Grade 25

Hardness
60-70 Rockwell C
Properties
Commonly used in precision bearings.
Colour
Silver
Metallic Balls - 1.588 mm SAE52100 Chrome - Grade 25
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.000635   
Part Number: BL-00159-CH-G25 (10000 Pcs)
Metallic Balls - 1.588 mm SAE52100 Chrome - AFBMA Grade 25 Ball
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 31, 2025
Regular price $100.86 AUD
Regular price $236.99 AUD Sale price $100.86 AUD
10000 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
1.588
mm
+/- 0.00254
(Equiv. 0.063 in.)
Material
SAE52100 Chrome

Precision
AFBMA Grade 25

Hardness
60-70 Rockwell C
Metallic Balls - 1.588 mm SAE52100 Chrome - Grade 25
Material: Chrome Steel SAE 52100    Properties: Commonly used in precision bearings.    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.000635   
Part Number: BL-00159-CH-G25 (10000 Pcs)
Metallic Balls - 1.588 mm SAE52100 Chrome - AFBMA Grade 25 Ball
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 31, 2025
Regular price $100.86 AUD
Regular price $236.99 AUD Sale price $100.86 AUD
10000 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
2.000
mm
+/- 0.00254
(Equiv. 0.079 in.)
Material
SAE52100 Chrome

Precision
AFBMA Grade 25

Hardness
60-70 Rockwell C
Properties
Commonly used in precision bearings.
Colour
Silver
Metallic Balls - 2 mm SAE52100 Chrome - Grade 25
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.000635   
Part Number: BL-00200-CH-G25 (500 Pcs)
Metallic Balls - 2 mm SAE52100 Chrome - AFBMA Grade 25 Ball
838 units (419000 pcs) Available Now | Further orders can be expected around Fri, Oct 31, 2025
Regular price $6.68 AUD
Regular price Sale price $6.68 AUD
500 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

838 units (419000 pcs) Available Now. Backorder if more than 838.
Diameter (D)
2.000
mm
+/- 0.00254
(Equiv. 0.079 in.)
Material
SAE52100 Chrome

Precision
AFBMA Grade 25

Hardness
60-70 Rockwell C
Metallic Balls - 2 mm SAE52100 Chrome - Grade 25
Material: Chrome Steel SAE 52100    Properties: Commonly used in precision bearings.    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.000635   
Part Number: BL-00200-CH-G25 (500 Pcs)
Metallic Balls - 2 mm SAE52100 Chrome - AFBMA Grade 25 Ball
838 units (419000 pcs) Available Now | Further orders can be expected around Fri, Oct 31, 2025
Regular price $6.68 AUD
Regular price Sale price $6.68 AUD
500 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

838 units (419000 pcs) Available Now. Backorder if more than 838.
Diameter (D)
2.381
mm
+/- 0.00254
(Equiv. 0.094 in.)
Material
SAE52100 Chrome

Precision
AFBMA Grade 25

Hardness
60-70 Rockwell C
Properties
Commonly used in precision bearings.
Colour
Silver
Metallic Balls - 2.381 mm SAE52100 Chrome - Grade 25
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.000635   
Part Number: BL-00238-CH-G25 (100 Pcs)
Metallic Balls - 2.381 mm SAE52100 Chrome - AFBMA Grade 25 Ball
Out of Stock | Backorder Now | Orders can be expected around Tue, Nov 11, 2025
Regular price $24.68 AUD
Regular price $57.87 AUD Sale price $24.68 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
2.381
mm
+/- 0.00254
(Equiv. 0.094 in.)
Material
SAE52100 Chrome

Precision
AFBMA Grade 25

Hardness
60-70 Rockwell C
Metallic Balls - 2.381 mm SAE52100 Chrome - Grade 25
Material: Chrome Steel SAE 52100    Properties: Commonly used in precision bearings.    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.000635   
Part Number: BL-00238-CH-G25 (100 Pcs)
Metallic Balls - 2.381 mm SAE52100 Chrome - AFBMA Grade 25 Ball
Out of Stock | Backorder Now | Orders can be expected around Tue, Nov 11, 2025
Regular price $24.68 AUD
Regular price $57.87 AUD Sale price $24.68 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
2.450
mm
+/- 0.000762
(Equiv. 0.096 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 3

Hardness
60-70 Rockwell C
Properties
Commonly used in precision bearings.
Colour
Silver
Metallic Balls - 2.45 mm SAE52100 Chrome - Grade 3
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.00008   
Part Number: BL-00245-CH-G3
Metallic Balls - 2.45 mm SAE52100 Chrome - ISO 3290 Grade 3 Ball
Contact Us | Special Order Only - Please contact us if you need a large quantity
Diameter (D)
2.450
mm
+/- 0.000762
(Equiv. 0.096 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 3

Hardness
60-70 Rockwell C
Metallic Balls - 2.45 mm SAE52100 Chrome - Grade 3
Material: Chrome Steel SAE 52100    Properties: Commonly used in precision bearings.    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.00008   
Part Number: BL-00245-CH-G3
Metallic Balls - 2.45 mm SAE52100 Chrome - ISO 3290 Grade 3 Ball
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Wed, Jun 28, 2028
Diameter (D)
2.500
mm
+/- 0.00254
(Equiv. 0.098 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 28

Hardness
60-70 Rockwell C
Properties
Commonly used in precision bearings.
Colour
Silver
Metallic Balls - 2.5 mm SAE52100 Chrome - Grade 28
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.00070   
Part Number: BL-00250-CH-G28 (100 Pcs)
Metallic Balls - 2.5 mm SAE52100 Chrome - ISO 3290 Grade 28 Ball
Out of Stock | Backorder Now | Orders can be expected around Tue, Nov 11, 2025
Regular price $75.50 AUD
Regular price Sale price $75.50 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
2.500
mm
+/- 0.00254
(Equiv. 0.098 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 28

Hardness
60-70 Rockwell C
Metallic Balls - 2.5 mm SAE52100 Chrome - Grade 28
Material: Chrome Steel SAE 52100    Properties: Commonly used in precision bearings.    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.00070   
Part Number: BL-00250-CH-G28 (100 Pcs)
Metallic Balls - 2.5 mm SAE52100 Chrome - ISO 3290 Grade 28 Ball
Out of Stock | Backorder Now | Orders can be expected around Tue, Nov 11, 2025
Regular price $75.50 AUD
Regular price Sale price $75.50 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
3.000
mm
+/- 0.00254
(Equiv. 0.118 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 28

Hardness
60-70 Rockwell C
Properties
Commonly used in precision bearings.
Colour
Silver
Metallic Balls - 3 mm SAE52100 Chrome - Grade 28
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.00070   
Part Number: BL-00300-CH-G28 (10000 Pcs)
Metallic Balls - 3 mm SAE52100 Chrome - ISO 3290 Grade 28 Ball
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 31, 2025
Regular price $140.05 AUD
Regular price $329.17 AUD Sale price $140.05 AUD
10000 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
3.000
mm
+/- 0.00254
(Equiv. 0.118 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 28

Hardness
60-70 Rockwell C
Metallic Balls - 3 mm SAE52100 Chrome - Grade 28
Material: Chrome Steel SAE 52100    Properties: Commonly used in precision bearings.    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.00070   
Part Number: BL-00300-CH-G28 (10000 Pcs)
Metallic Balls - 3 mm SAE52100 Chrome - ISO 3290 Grade 28 Ball
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 31, 2025
Regular price $140.05 AUD
Regular price $329.17 AUD Sale price $140.05 AUD
10000 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
3.175
mm
+/- 0.00254
(Equiv. 0.125 in.)
Material
SAE52100 Chrome

Precision
AFBMA Grade 25

Hardness
60-70 Rockwell C
Properties
Commonly used in precision bearings.
Colour
Silver
Metallic Balls - 3.175 mm SAE52100 Chrome - Grade 25
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.000635   
Part Number: BL-00318-CH-G25 (50 Pcs)
Metallic Balls - 3.175 mm SAE52100 Chrome - AFBMA Grade 25 Ball
134 units (6700 pcs) Available Now | Further orders can be expected around Fri, Oct 31, 2025
Regular price $6.68 AUD
Regular price Sale price $6.68 AUD
50 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

134 units (6700 pcs) Available Now. Backorder if more than 134.
Diameter (D)
3.175
mm
+/- 0.00254
(Equiv. 0.125 in.)
Material
SAE52100 Chrome

Precision
AFBMA Grade 25

Hardness
60-70 Rockwell C
Metallic Balls - 3.175 mm SAE52100 Chrome - Grade 25
Material: Chrome Steel SAE 52100    Properties: Commonly used in precision bearings.    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.000635   
Part Number: BL-00318-CH-G25 (50 Pcs)
Metallic Balls - 3.175 mm SAE52100 Chrome - AFBMA Grade 25 Ball
134 units (6700 pcs) Available Now | Further orders can be expected around Fri, Oct 31, 2025
Regular price $6.68 AUD
Regular price Sale price $6.68 AUD
50 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

134 units (6700 pcs) Available Now. Backorder if more than 134.
Diameter (D)
3.400
mm
+/- 0.00254
(Equiv. 0.134 in.)
Material
SAE52100 Chrome

Precision
AFBMA Grade 25

Hardness
60-70 Rockwell C
Properties
Commonly used in precision bearings.
Colour
Silver
Metallic Balls - 3.4 mm SAE52100 Chrome - Grade 25
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.000635   
Part Number: BL-00340-CH-G25 (100 Pcs)
Metallic Balls - 3.4 mm SAE52100 Chrome - AFBMA Grade 25 Ball
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 31, 2025
Regular price $2.68 AUD
Regular price $6.01 AUD Sale price $2.68 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
3.400
mm
+/- 0.00254
(Equiv. 0.134 in.)
Material
SAE52100 Chrome

Precision
AFBMA Grade 25

Hardness
60-70 Rockwell C
Metallic Balls - 3.4 mm SAE52100 Chrome - Grade 25
Material: Chrome Steel SAE 52100    Properties: Commonly used in precision bearings.    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.000635   
Part Number: BL-00340-CH-G25 (100 Pcs)
Metallic Balls - 3.4 mm SAE52100 Chrome - AFBMA Grade 25 Ball
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 31, 2025
Regular price $2.68 AUD
Regular price $6.01 AUD Sale price $2.68 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
3.500
mm
+/- 0.00254
(Equiv. 0.138 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 28

Hardness
60-70 Rockwell C
Properties
Commonly used in precision bearings.
Colour
Silver
Metallic Balls - 3.5 mm SAE52100 Chrome - Grade 28
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.00070   
Part Number: BL-00350-CH-G28 (300 Pcs)
Metallic Balls - 3.5 mm SAE52100 Chrome - ISO 3290 Grade 28 Ball
1 pack (300 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $1.05 AUD
Regular price $3.61 AUD Sale price $1.05 AUD
300 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (300 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Diameter (D)
3.500
mm
+/- 0.00254
(Equiv. 0.138 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 28

Hardness
60-70 Rockwell C
Metallic Balls - 3.5 mm SAE52100 Chrome - Grade 28
Material: Chrome Steel SAE 52100    Properties: Commonly used in precision bearings.    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.00070   
Part Number: BL-00350-CH-G28 (300 Pcs)
Metallic Balls - 3.5 mm SAE52100 Chrome - ISO 3290 Grade 28 Ball
1 pack (300 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $1.05 AUD
Regular price $3.61 AUD Sale price $1.05 AUD
300 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (300 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Diameter (D)
3.969
mm
+/- 0.00254
(Equiv. 0.156 in.)
Material
SAE52100 Chrome

Precision
AFBMA Grade 25

Hardness
60-70 Rockwell C
Properties
Commonly used in precision bearings.
Colour
Silver
Metallic Balls - 3.969 mm SAE52100 Chrome - Grade 25
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.000635   
Part Number: BL-00397-CH-G25 (200 Pcs)
Metallic Balls - 3.969 mm SAE52100 Chrome - AFBMA Grade 25 Ball
257 units (51400 pcs) Available Now | Further orders can be expected around Fri, Oct 31, 2025
Regular price $5.32 AUD
Regular price Sale price $5.32 AUD
200 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

257 units (51400 pcs) Available Now. Backorder if more than 257.
Diameter (D)
3.969
mm
+/- 0.00254
(Equiv. 0.156 in.)
Material
SAE52100 Chrome

Precision
AFBMA Grade 25

Hardness
60-70 Rockwell C
Metallic Balls - 3.969 mm SAE52100 Chrome - Grade 25
Material: Chrome Steel SAE 52100    Properties: Commonly used in precision bearings.    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.000635   
Part Number: BL-00397-CH-G25 (200 Pcs)
Metallic Balls - 3.969 mm SAE52100 Chrome - AFBMA Grade 25 Ball
257 units (51400 pcs) Available Now | Further orders can be expected around Fri, Oct 31, 2025
Regular price $5.32 AUD
Regular price Sale price $5.32 AUD
200 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

257 units (51400 pcs) Available Now. Backorder if more than 257.
Diameter (D)
4.000
mm
+/- 0.01270
(Equiv. 0.157 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 100

Hardness
60-70 Rockwell C
Properties
Commonly used in precision bearings.
Colour
Silver
Metallic Balls - 4 mm SAE52100 Chrome - Grade 100
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.00250   
Part Number: BL-00400-CH-G100 (10000 Pcs)
Metallic Balls - 4 mm SAE52100 Chrome - ISO 3290 Grade 100 Ball
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 31, 2025
Regular price $272.14 AUD
Regular price $640.00 AUD Sale price $272.14 AUD
10000 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
4.000
mm
+/- 0.01270
(Equiv. 0.157 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 100

Hardness
60-70 Rockwell C
Metallic Balls - 4 mm SAE52100 Chrome - Grade 100
Material: Chrome Steel SAE 52100    Properties: Commonly used in precision bearings.    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.00250   
Part Number: BL-00400-CH-G100 (10000 Pcs)
Metallic Balls - 4 mm SAE52100 Chrome - ISO 3290 Grade 100 Ball
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 31, 2025
Regular price $272.14 AUD
Regular price $640.00 AUD Sale price $272.14 AUD
10000 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
4.000
mm
+/- 0.00254
(Equiv. 0.157 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 28

Hardness
60-70 Rockwell C
Properties
Commonly used in precision bearings.
Colour
Silver
Metallic Balls - 4 mm SAE52100 Chrome - Grade 28
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.00070   
Part Number: BL-00400-CH-G28 (100 Pcs)
Metallic Balls - 4 mm SAE52100 Chrome - ISO 3290 Grade 28 Ball
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 31, 2025
Regular price $5.68 AUD
Regular price $13.17 AUD Sale price $5.68 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
4.000
mm
+/- 0.00254
(Equiv. 0.157 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 28

Hardness
60-70 Rockwell C
Metallic Balls - 4 mm SAE52100 Chrome - Grade 28
Material: Chrome Steel SAE 52100    Properties: Commonly used in precision bearings.    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.00070   
Part Number: BL-00400-CH-G28 (100 Pcs)
Metallic Balls - 4 mm SAE52100 Chrome - ISO 3290 Grade 28 Ball
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 31, 2025
Regular price $5.68 AUD
Regular price $13.17 AUD Sale price $5.68 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
4.500
mm
+/- 0.01270
(Equiv. 0.177 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 100

Hardness
60-70 Rockwell C
Properties
1 KG = Approx 2,300 Balls
Colour
Silver
Metallic Balls - 4.5 mm SAE52100 Chrome - Grade 100
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.00250   
Part Number: BL-00450-CH-G100-1KG (KG)
Metallic Balls - 4.5 mm SAE52100 Chrome - ISO 3290 Grade 100 Ball
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 31, 2025
Regular price $16.41 AUD
Regular price Sale price $16.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
4.500
mm
+/- 0.01270
(Equiv. 0.177 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 100

Hardness
60-70 Rockwell C
Metallic Balls - 4.5 mm SAE52100 Chrome - Grade 100
Material: Chrome Steel SAE 52100    Properties: 1 KG = Approx 2,300 Balls    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.00250   
Part Number: BL-00450-CH-G100-1KG (KG)
Metallic Balls - 4.5 mm SAE52100 Chrome - ISO 3290 Grade 100 Ball
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 31, 2025
Regular price $16.41 AUD
Regular price Sale price $16.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
4.500
mm
+/- 0.00254
(Equiv. 0.177 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 28

Hardness
60-70 Rockwell C
Properties
Commonly used in precision bearings.
Colour
Silver
Metallic Balls - 4.5 mm SAE52100 Chrome - Grade 28
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.00070   
Part Number: BL-00450-CH-G28 (10000 Pcs)
Metallic Balls - 4.5 mm SAE52100 Chrome - ISO 3290 Grade 28 Ball
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 31, 2025
Regular price $168.05 AUD
Regular price $395.03 AUD Sale price $168.05 AUD
10000 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
4.500
mm
+/- 0.00254
(Equiv. 0.177 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 28

Hardness
60-70 Rockwell C
Metallic Balls - 4.5 mm SAE52100 Chrome - Grade 28
Material: Chrome Steel SAE 52100    Properties: Commonly used in precision bearings.    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.00070   
Part Number: BL-00450-CH-G28 (10000 Pcs)
Metallic Balls - 4.5 mm SAE52100 Chrome - ISO 3290 Grade 28 Ball
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 31, 2025
Regular price $168.05 AUD
Regular price $395.03 AUD Sale price $168.05 AUD
10000 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
4.763
mm
+/- 0.00254
(Equiv. 0.188 in.)
Material
SAE52100 Chrome

Precision
AFBMA Grade 25

Hardness
60-70 Rockwell C
Properties
Commonly used in precision bearings.
Colour
Silver
Metallic Balls - 4.763 mm SAE52100 Chrome - Grade 25
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.000635   
Part Number: BL-00476-CH-G25 (100 Pcs)
Metallic Balls - 4.763 mm SAE52100 Chrome - AFBMA Grade 25 Ball
Out of Stock | Backorder Now | Orders can be expected around Tue, Nov 11, 2025
Regular price $4.59 AUD
Regular price $10.55 AUD Sale price $4.59 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
4.763
mm
+/- 0.00254
(Equiv. 0.188 in.)
Material
SAE52100 Chrome

Precision
AFBMA Grade 25

Hardness
60-70 Rockwell C
Metallic Balls - 4.763 mm SAE52100 Chrome - Grade 25
Material: Chrome Steel SAE 52100    Properties: Commonly used in precision bearings.    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.000635   
Part Number: BL-00476-CH-G25 (100 Pcs)
Metallic Balls - 4.763 mm SAE52100 Chrome - AFBMA Grade 25 Ball
Out of Stock | Backorder Now | Orders can be expected around Tue, Nov 11, 2025
Regular price $4.59 AUD
Regular price $10.55 AUD Sale price $4.59 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Diameter (D)
4.763
mm
+/- 0.00254
(Equiv. 0.188 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 20

Hardness
60-70 Rockwell C
Properties
Commonly used in precision bearings.
Colour
Silver
Metallic Balls - 4.763 mm SAE52100 Chrome - Grade 20
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.00050   
Part Number: BL-00476-CH-G20 (100 Pcs)
Metallic Balls - 4.763 mm SAE52100 Chrome - ISO 3290 Grade 20 Ball
50 units (5000 pcs) Available Now | Further orders can be expected around Thu, Nov 06, 2025
Regular price $6.86 AUD
Regular price Sale price $6.86 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

50 units (5000 pcs) Available Now. Backorder if more than 50.
Diameter (D)
4.763
mm
+/- 0.00254
(Equiv. 0.188 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 20

Hardness
60-70 Rockwell C
Metallic Balls - 4.763 mm SAE52100 Chrome - Grade 20
Material: Chrome Steel SAE 52100    Properties: Commonly used in precision bearings.    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.00050   
Part Number: BL-00476-CH-G20 (100 Pcs)
Metallic Balls - 4.763 mm SAE52100 Chrome - ISO 3290 Grade 20 Ball
50 units (5000 pcs) Available Now | Further orders can be expected around Thu, Nov 06, 2025
Regular price $6.86 AUD
Regular price Sale price $6.86 AUD
100 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

50 units (5000 pcs) Available Now. Backorder if more than 50.
Diameter (D)
5.000
mm
+/- 0.00254
(Equiv. 0.197 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 28

Hardness
60-70 Rockwell C
Properties
Commonly used in precision bearings.
Colour
Silver
Metallic Balls - 5 mm SAE52100 Chrome - Grade 28
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.00070   
Part Number: BL-00500-CH-G28 (200 Pcs)
Metallic Balls - 5 mm SAE52100 Chrome - ISO 3290 Grade 28 Ball
161 units (32200 pcs) Available Now | Further orders can be expected around Fri, Oct 31, 2025
Regular price $4.05 AUD
Regular price Sale price $4.05 AUD
200 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

161 units (32200 pcs) Available Now. Backorder if more than 161.
Diameter (D)
5.000
mm
+/- 0.00254
(Equiv. 0.197 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 28

Hardness
60-70 Rockwell C
Metallic Balls - 5 mm SAE52100 Chrome - Grade 28
Material: Chrome Steel SAE 52100    Properties: Commonly used in precision bearings.    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.00070   
Part Number: BL-00500-CH-G28 (200 Pcs)
Metallic Balls - 5 mm SAE52100 Chrome - ISO 3290 Grade 28 Ball
161 units (32200 pcs) Available Now | Further orders can be expected around Fri, Oct 31, 2025
Regular price $4.05 AUD
Regular price Sale price $4.05 AUD
200 Per Sell Unit
Excludes GST and overseas Taxes & Duties
Quantity Required

161 units (32200 pcs) Available Now. Backorder if more than 161.
Diameter (D)
5.000
mm
+/- 0.000762
(Equiv. 0.197 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 3

Hardness
60-70 Rockwell C
Properties
Commonly used in precision bearings.
Colour
Silver
Metallic Balls - 5 mm SAE52100 Chrome - Grade 3
Material: Chrome Steel SAE 52100    Specific Gravity: 7.833    Ovality: +/-0.00008   
Part Number: BL-00500-CH-G3
Metallic Balls - 5 mm SAE52100 Chrome - ISO 3290 Grade 3 Ball
Contact Us | Special Order Only - Please contact us if you need a large quantity
Diameter (D)
5.000
mm
+/- 0.000762
(Equiv. 0.197 in.)
Material
SAE52100 Chrome

Precision
ISO 3290 Grade 3

Hardness
60-70 Rockwell C
Metallic Balls - 5 mm SAE52100 Chrome - Grade 3
Material: Chrome Steel SAE 52100    Properties: Commonly used in precision bearings.    Colour: Silver    Specific Gravity: 7.833    Ovality: +/-0.00008   
Part Number: BL-00500-CH-G3
Metallic Balls - 5 mm SAE52100 Chrome - ISO 3290 Grade 3 Ball
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Wed, Jun 28, 2028