Collection: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel

Bearings -> Single Row Ball -> Unflanged -> Precision -> Chrome Steel
ID (d) O.D. (D) Width (B) Inner Ring Width (Bn) Flange Diameter (DF) Flange Width (BF) Indicative
Image
Single Row Ball Bearings - 3x9x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.118 in.)
O.D. (D)
9.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.354 in.)
Width (B)
5.000
mm
+ 0.000 / - 0.125
(Equiv. 0.197 in.)
Single Row Ball Bearings - 3x9x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 603A-ZZ-ECO (Pack of 5)
24 units (120 pcs) Available Now | Further orders can be expected around Sat, Aug 29, 2026
Regular price $7.23 AUD
Regular price Sale price $7.23 AUD
Priced, Stocked and Sold Per pack of 5
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 24 available can be backordered.
ID (d) O.D. (D) Width (B) Inner Ring Width (Bn) Indicative
Image
Single Row Ball Bearings - 3x9x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.118 in.)
O.D. (D)
9.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.354 in.)
Width (B)
5.000
mm
+ 0.000 / - 0.125
(Equiv. 0.197 in.)
Single Row Ball Bearings - 3x9x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 603A-ZZ-ECO (Pack of 5)
24 units (120 pcs) Available Now | Further orders can be expected around Sat, Aug 29, 2026
Regular price $7.23 AUD
Regular price Sale price $7.23 AUD
Priced, Stocked and Sold Per pack of 5
Excludes GST and overseas Taxes & Duties
Quantity Required

24 units (120 pcs) Available Now. Backorder if more than 24.
Single Row Ball Bearings - 3x9x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.118 in.)
O.D. (D)
9.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.354 in.)
Width (B)
5.000
mm
+ 0.000 / - 0.125
(Equiv. 0.197 in.)
Single Row Ball Bearings - 3x9x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 603A-ZZ-MC3 (Pack of 100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Sep 04, 2026
Regular price $547.68 AUD
Regular price $655.62 AUD Sale price $547.68 AUD
Priced, Stocked and Sold Per pack of 100
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 3x9x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.118 in.)
O.D. (D)
9.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.354 in.)
Width (B)
5.000
mm
+ 0.000 / - 0.125
(Equiv. 0.197 in.)
Single Row Ball Bearings - 3x9x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 603A-ZZ-MC3 (Pack of 100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Sep 04, 2026
Regular price $547.68 AUD
Regular price $655.62 AUD Sale price $547.68 AUD
Priced, Stocked and Sold Per pack of 100
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 3x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.000
mm
O.D. (D)
10.000
mm
Width (B)
4.000
mm
Single Row Ball Bearings - 3x10x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: ZZS    Bearing Type: Radial   
Double shielded economy bearing
Part Number: 623-ZZS-ECO (Pack of 2)
201 units (402 pcs) Available Now | Further orders can be expected around Sat, Aug 29, 2026
Regular price $4.86 AUD
Regular price Sale price $4.86 AUD
Priced, Stocked and Sold Per pack of 2
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 201 available can be backordered.
Single Row Ball Bearings - 3x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.000
mm
O.D. (D)
10.000
mm
Width (B)
4.000
mm
Single Row Ball Bearings - 3x10x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: ZZS    Bearing Type: Radial   
Double shielded economy bearing
Part Number: 623-ZZS-ECO (Pack of 2)
201 units (402 pcs) Available Now | Further orders can be expected around Sat, Aug 29, 2026
Regular price $4.86 AUD
Regular price Sale price $4.86 AUD
Priced, Stocked and Sold Per pack of 2
Excludes GST and overseas Taxes & Duties
Quantity Required

201 units (402 pcs) Available Now. Backorder if more than 201.
Single Row Ball Bearings - 3x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.118 in.)
O.D. (D)
10.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.394 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.125
(Equiv. 0.157 in.)
Single Row Ball Bearings - 3x10x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 623-ZZ-MC3 (Each)
943 Available Now | Further orders can be expected around Fri, Sep 04, 2026
Regular price $4.32 AUD
Regular price Sale price $4.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 943 available can be backordered.
Single Row Ball Bearings - 3x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.118 in.)
O.D. (D)
10.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.394 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.125
(Equiv. 0.157 in.)
Single Row Ball Bearings - 3x10x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 623-ZZ-MC3 (Each)
943 Available Now | Further orders can be expected around Fri, Sep 04, 2026
Regular price $4.32 AUD
Regular price Sale price $4.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

943 Available Now. Backorder if more than 943.
Single Row Ball Bearings - 3x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.118 in.)
O.D. (D)
10.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.394 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.125
(Equiv. 0.157 in.)
Single Row Ball Bearings - 3x10x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: 2RS    Bearing Type: Radial   
Part Number: 623-2RS-MC3 (Pack of 100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Sep 04, 2026
Regular price $809.59 AUD
Regular price Sale price $809.59 AUD
Priced, Stocked and Sold Per pack of 100
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 3x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.118 in.)
O.D. (D)
10.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.394 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.125
(Equiv. 0.157 in.)
Single Row Ball Bearings - 3x10x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: 2RS    Bearing Type: Radial   
Part Number: 623-2RS-MC3 (Pack of 100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Sep 04, 2026
Regular price $809.59 AUD
Regular price Sale price $809.59 AUD
Priced, Stocked and Sold Per pack of 100
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 3x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.000
mm
O.D. (D)
10.000
mm
Width (B)
4.000
mm
Single Row Ball Bearings - 3x10x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2RS    Bearing Type: Radial   
Part Number: 623-2RS-ECO (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Sep 07, 2026
Regular price $4.32 AUD
Regular price Sale price $4.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 3x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.000
mm
O.D. (D)
10.000
mm
Width (B)
4.000
mm
Single Row Ball Bearings - 3x10x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2RS    Bearing Type: Radial   
Part Number: 623-2RS-ECO (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Sep 07, 2026
Regular price $4.32 AUD
Regular price Sale price $4.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 3x13x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.118 in.)
O.D. (D)
13.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.512 in.)
Width (B)
5.000
mm
+ 0.000 / - 0.125
(Equiv. 0.197 in.)
Single Row Ball Bearings - 3x13x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 633-ZZ-MC3 (Pack of 50)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Sep 04, 2026
Regular price $457.14 AUD
Regular price Sale price $457.14 AUD
Priced, Stocked and Sold Per pack of 50
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 3x13x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.118 in.)
O.D. (D)
13.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.512 in.)
Width (B)
5.000
mm
+ 0.000 / - 0.125
(Equiv. 0.197 in.)
Single Row Ball Bearings - 3x13x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 633-ZZ-MC3 (Pack of 50)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Sep 04, 2026
Regular price $457.14 AUD
Regular price Sale price $457.14 AUD
Priced, Stocked and Sold Per pack of 50
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 3x13x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.000
mm
O.D. (D)
13.000
mm
Width (B)
5.000
mm
Single Row Ball Bearings - 3x13x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2GS    Bearing Type: Radial   
Part Number: 633-2RG-ECO (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Sep 12, 2026
Regular price $27.41 AUD
Regular price $31.89 AUD Sale price $27.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 3x13x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.000
mm
O.D. (D)
13.000
mm
Width (B)
5.000
mm
Single Row Ball Bearings - 3x13x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2GS    Bearing Type: Radial   
Part Number: 633-2RG-ECO (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Sep 12, 2026
Regular price $27.41 AUD
Regular price $31.89 AUD Sale price $27.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 4x7x2 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.007
(Equiv. 0.157 in.)
O.D. (D)
7.000
mm
+ 0.000 / - 0.007
(Equiv. 0.276 in.)
Width (B)
2.000
mm
+ 0.000 / - 0.120
(Equiv. 0.079 in.)
Single Row Ball Bearings - 4x7x2 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: Open    Bearing Type: Radial   
Part Number: MR74-MC3-JP6-AF12 (PK-50)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Single Row Ball Bearings - 4x7x2 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.007
(Equiv. 0.157 in.)
O.D. (D)
7.000
mm
+ 0.000 / - 0.007
(Equiv. 0.276 in.)
Width (B)
2.000
mm
+ 0.000 / - 0.120
(Equiv. 0.079 in.)
Single Row Ball Bearings - 4x7x2 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: Open    Bearing Type: Radial   
Part Number: MR74-MC3-JP6-AF12 (PK-50)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Thu, Apr 26, 2029
Single Row Ball Bearings - 4x7x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.007
(Equiv. 0.157 in.)
O.D. (D)
7.000
mm
+ 0.000 / - 0.007
(Equiv. 0.276 in.)
Width (B)
2.500
mm
+ 0.000 / - 0.120
(Equiv. 0.098 in.)
Single Row Ball Bearings - 4x7x2.5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: ZZS    Bearing Type: Radial   
Part Number: MR74A-ZZS-MC3-JP6 (PK-50)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Single Row Ball Bearings - 4x7x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.007
(Equiv. 0.157 in.)
O.D. (D)
7.000
mm
+ 0.000 / - 0.007
(Equiv. 0.276 in.)
Width (B)
2.500
mm
+ 0.000 / - 0.120
(Equiv. 0.098 in.)
Single Row Ball Bearings - 4x7x2.5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: ZZS    Bearing Type: Radial   
Part Number: MR74A-ZZS-MC3-JP6 (PK-50)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Thu, Apr 26, 2029
Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.007
(Equiv. 0.157 in.)
O.D. (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.)
Single Row Ball Bearings - 4x8x3 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: ZZ    Bearing Type: Radial   
Part Number: MR84A-ZZ-MC3-JP6 (PK-50)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.007
(Equiv. 0.157 in.)
O.D. (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.)
Single Row Ball Bearings - 4x8x3 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: ZZ    Bearing Type: Radial   
Part Number: MR84A-ZZ-MC3-JP6 (PK-50)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Thu, Apr 26, 2029
Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.007
(Equiv. 0.157 in.)
O.D. (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.)
Single Row Ball Bearings - 4x9x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 684A-ZZ-MC3-JP6 (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.007
(Equiv. 0.157 in.)
O.D. (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.)
Single Row Ball Bearings - 4x9x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 684A-ZZ-MC3-JP6 (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Thu, Apr 26, 2029
Single Row Ball Bearings - 4x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.007
(Equiv. 0.157 in.)
O.D. (D)
10.000
mm
+ 0.000 / - 0.007
(Equiv. 0.394 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.120
(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x10x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: ZZ    Bearing Type: Radial   
Part Number: MR104A-ZZ-MC3-JP6 (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Single Row Ball Bearings - 4x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.007
(Equiv. 0.157 in.)
O.D. (D)
10.000
mm
+ 0.000 / - 0.007
(Equiv. 0.394 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.120
(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x10x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: ZZ    Bearing Type: Radial   
Part Number: MR104A-ZZ-MC3-JP6 (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Thu, Apr 26, 2029
Single Row Ball Bearings - 4x11x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.007
(Equiv. 0.157 in.)
O.D. (D)
11.000
mm
+ 0.000 / - 0.007
(Equiv. 0.433 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.120
(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x11x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 694-ZZ-MC3-JP6 (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Single Row Ball Bearings - 4x11x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.007
(Equiv. 0.157 in.)
O.D. (D)
11.000
mm
+ 0.000 / - 0.007
(Equiv. 0.433 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.120
(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x11x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 694-ZZ-MC3-JP6 (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Thu, Apr 26, 2029
Single Row Ball Bearings - 4x11x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.007
(Equiv. 0.157 in.)
O.D. (D)
11.000
mm
+ 0.000 / - 0.007
(Equiv. 0.433 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.120
(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x11x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 694-ZZ-MC2-JP6-SRL (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Single Row Ball Bearings - 4x11x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.007
(Equiv. 0.157 in.)
O.D. (D)
11.000
mm
+ 0.000 / - 0.007
(Equiv. 0.433 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.120
(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x11x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 694-ZZ-MC2-JP6-SRL (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Thu, Apr 26, 2029
Single Row Ball Bearings - 4x12x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.007
(Equiv. 0.157 in.)
O.D. (D)
12.000
mm
+ 0.000 / - 0.007
(Equiv. 0.472 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.120
(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x12x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 604-ZZ-MC3-JP6 (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Single Row Ball Bearings - 4x12x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.007
(Equiv. 0.157 in.)
O.D. (D)
12.000
mm
+ 0.000 / - 0.007
(Equiv. 0.472 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.120
(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x12x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 604-ZZ-MC3-JP6 (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Thu, Apr 26, 2029
Single Row Ball Bearings - 4x13x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.007
(Equiv. 0.157 in.)
O.D. (D)
13.000
mm
+ 0.000 / - 0.007
(Equiv. 0.512 in.)
Width (B)
5.000
mm
+ 0.000 / - 0.120
(Equiv. 0.197 in.)
Single Row Ball Bearings - 4x13x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 624-ZZ-MC3-JP6 (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Single Row Ball Bearings - 4x13x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.007
(Equiv. 0.157 in.)
O.D. (D)
13.000
mm
+ 0.000 / - 0.007
(Equiv. 0.512 in.)
Width (B)
5.000
mm
+ 0.000 / - 0.120
(Equiv. 0.197 in.)
Single Row Ball Bearings - 4x13x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 624-ZZ-MC3-JP6 (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Thu, Apr 26, 2029
Single Row Ball Bearings - 4x16x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.007
(Equiv. 0.157 in.)
O.D. (D)
16.000
mm
+ 0.000 / - 0.007
(Equiv. 0.63 in.)
Width (B)
5.000
mm
+ 0.000 / - 0.120
(Equiv. 0.197 in.)
Single Row Ball Bearings - 4x16x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 634-ZZ-MC3-JP6 (PK-20)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Single Row Ball Bearings - 4x16x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.007
(Equiv. 0.157 in.)
O.D. (D)
16.000
mm
+ 0.000 / - 0.007
(Equiv. 0.63 in.)
Width (B)
5.000
mm
+ 0.000 / - 0.120
(Equiv. 0.197 in.)
Single Row Ball Bearings - 4x16x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 634-ZZ-MC3-JP6 (PK-20)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Thu, Apr 26, 2029
Single Row Ball Bearings - 4x16x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
O.D. (D)
16.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.63 in.)
Width (B)
5.000
mm
+ 0.000 / - 0.125
(Equiv. 0.197 in.)
Single Row Ball Bearings - 4x16x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 634-ZZ-MC2 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Single Row Ball Bearings - 4x16x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
O.D. (D)
16.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.63 in.)
Width (B)
5.000
mm
+ 0.000 / - 0.125
(Equiv. 0.197 in.)
Single Row Ball Bearings - 4x16x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 634-ZZ-MC2 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Thu, Apr 26, 2029
Single Row Ball Bearings - 3.175x6.35x2.381 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.175
mm
+ 0.000 / - 0.0075
(Equiv. 0.125 in.)
O.D. (D)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
Width (B)
2.381
mm
+ 0.000 / - 0.125
(Equiv. 0.094 in.)
Single Row Ball Bearings - 3.175x6.35x2.381 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: Open    Bearing Type: Radial   
Part Number: R144-MC3-AF12 (Pack of 50)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Sep 04, 2026
Regular price $380.95 AUD
Regular price $455.55 AUD Sale price $380.95 AUD
Priced, Stocked and Sold Per pack of 50
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 3.175x6.35x2.381 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.175
mm
+ 0.000 / - 0.0075
(Equiv. 0.125 in.)
O.D. (D)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
Width (B)
2.381
mm
+ 0.000 / - 0.125
(Equiv. 0.094 in.)
Single Row Ball Bearings - 3.175x6.35x2.381 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: Open    Bearing Type: Radial   
Part Number: R144-MC3-AF12 (Pack of 50)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Sep 04, 2026
Regular price $380.95 AUD
Regular price $455.55 AUD Sale price $380.95 AUD
Priced, Stocked and Sold Per pack of 50
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 3.175x6.35x2.779 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.175
mm
+ 0.000 / - 0.0075
(Equiv. 0.125 in.)
O.D. (D)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
Width (B)
2.779
mm
+ 0.000 / - 0.125
(Equiv. 0.109 in.)
Single Row Ball Bearings - 3.175x6.35x2.779 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZS    Bearing Type: Radial   
Part Number: R144A-ZZS-MC3 (Each)
4 Available Now | More stock due: 100 around Wed, Aug 19, 2026 | Further orders can be expected around Fri, Sep 04, 2026
Regular price $5.68 AUD
Regular price Sale price $5.68 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 4 available can be backordered.
Single Row Ball Bearings - 3.175x6.35x2.779 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.175
mm
+ 0.000 / - 0.0075
(Equiv. 0.125 in.)
O.D. (D)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
Width (B)
2.779
mm
+ 0.000 / - 0.125
(Equiv. 0.109 in.)
Single Row Ball Bearings - 3.175x6.35x2.779 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZS    Bearing Type: Radial   
Part Number: R144A-ZZS-MC3 (Each)
4 Available Now | More stock due: 100 around Wed, Aug 19, 2026 | Further orders can be expected around Fri, Sep 04, 2026
Regular price $5.68 AUD
Regular price Sale price $5.68 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

4 Available Now. Backorder if more than 4.
Single Row Ball Bearings - 3.175x6.35x2.779 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.175
mm
O.D. (D)
6.350
mm
Width (B)
2.779
mm
Single Row Ball Bearings - 3.175x6.35x2.779 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: ZZS    Bearing Type: Radial   
Double shielded economy bearing
Part Number: R144A-ZZS-ECO (Pack of 2)
57 units (114 pcs) Available Now | Further orders can be expected around Sat, Aug 29, 2026
Regular price $4.77 AUD
Regular price Sale price $4.77 AUD
Priced, Stocked and Sold Per pack of 2
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 57 available can be backordered.
Single Row Ball Bearings - 3.175x6.35x2.779 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.175
mm
O.D. (D)
6.350
mm
Width (B)
2.779
mm
Single Row Ball Bearings - 3.175x6.35x2.779 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: ZZS    Bearing Type: Radial   
Double shielded economy bearing
Part Number: R144A-ZZS-ECO (Pack of 2)
57 units (114 pcs) Available Now | Further orders can be expected around Sat, Aug 29, 2026
Regular price $4.77 AUD
Regular price Sale price $4.77 AUD
Priced, Stocked and Sold Per pack of 2
Excludes GST and overseas Taxes & Duties
Quantity Required

57 units (114 pcs) Available Now. Backorder if more than 57.
Single Row Ball Bearings - 3.175x6.35x2.779 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.175
mm
+ 0.000 / - 0.007
(Equiv. 0.125 in.)
O.D. (D)
6.350
mm
+ 0.000 / - 0.007
(Equiv. 0.25 in.)
Width (B)
2.779
mm
+ 0.000 / - 0.120
(Equiv. 0.109 in.)
Single Row Ball Bearings - 3.175x6.35x2.779 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: ZZS    Bearing Type: Radial   
Part Number: R144A-ZZS-MC3-JP6 (Pack of 100)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Single Row Ball Bearings - 3.175x6.35x2.779 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.175
mm
+ 0.000 / - 0.007
(Equiv. 0.125 in.)
O.D. (D)
6.350
mm
+ 0.000 / - 0.007
(Equiv. 0.25 in.)
Width (B)
2.779
mm
+ 0.000 / - 0.120
(Equiv. 0.109 in.)
Single Row Ball Bearings - 3.175x6.35x2.779 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6    Closure Type: ZZS    Bearing Type: Radial   
Part Number: R144A-ZZS-MC3-JP6 (Pack of 100)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Thu, Apr 26, 2029
Single Row Ball Bearings - 3.175x7.938x3.571 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.175
mm
O.D. (D)
7.938
mm
Width (B)
3.571
mm
Single Row Ball Bearings - 3.175x7.938x3.571 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2RS    Bearing Type: Radial   
Double black rubber sealed economy bearing
Part Number: R2-5A-2RS-ECO (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Sep 12, 2026
Regular price $18.77 AUD
Regular price $21.93 AUD Sale price $18.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 3.175x7.938x3.571 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
3.175
mm
O.D. (D)
7.938
mm
Width (B)
3.571
mm
Single Row Ball Bearings - 3.175x7.938x3.571 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2RS    Bearing Type: Radial   
Double black rubber sealed economy bearing
Part Number: R2-5A-2RS-ECO (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Sep 12, 2026
Regular price $18.77 AUD
Regular price $21.93 AUD Sale price $18.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.