Collection: Bearings - Single Row Ball

Bearings -> Single Row Ball
ID (d) O.D. (D) Width (B) Inner Ring Width (Bn) Flange Diameter (DF) Flange Width (BF) Indicative
Image
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Stainless Steel AISI 440C - Ribbon Retainer Low Torque Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.004
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.005
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.040
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Stainless Steel AISI 440C - Ribbon Retainer Low Torque Bearing
Material: Stainless Steel AISI 440C - Ribbon Retainer Low Torque    Precision Grade: Abec 7   
Category: Bearings - Single Row Ball - Unflanged
Part Number: SR4-ZZS-MC34-GR7-R-G48 (PK-35)
Out of Stock | Backorder Now | Backorder now for delivery around Tue, Aug 04, 2026
Regular price $2,949.05 AUD
Regular price Sale price $2,949.05 AUD
Priced, Stocked and Sold Per 35 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
ID (d) O.D. (D) Width (B) Inner Ring Width (Bn) Indicative
Image
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Stainless Steel AISI 440C - Ribbon Retainer Low Torque Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.004
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.005
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.040
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Stainless Steel AISI 440C - Ribbon Retainer Low Torque Bearing
Material: Stainless Steel AISI 440C - Ribbon Retainer Low Torque    Precision Grade: Abec 7   
Category: Bearings - Single Row Ball - Unflanged
Part Number: SR4-ZZS-MC34-GR7-R-G48 (PK-35)
Out of Stock | Backorder Now | Backorder now for delivery around Tue, Aug 04, 2026
Regular price $2,949.05 AUD
Regular price Sale price $2,949.05 AUD
Priced, Stocked and Sold Per 35 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Stainless Steel AISI 440C - Ribbon Retainer Low Torque Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.004
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.005
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.040
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C - Ribbon Retainer Low Torque
Material: Stainless Steel AISI 440C - Ribbon Retainer Low Torque    Precision Grade: Abec 7   
Category: Bearings - Single Row Ball - Unflanged
Part Number: SR4-MC34-GR7-R-L23 (PK-40)
Out of Stock | Backorder Now | Backorder now for delivery around Tue, Aug 04, 2026
Regular price $2,719.32 AUD
Regular price Sale price $2,719.32 AUD
Priced, Stocked and Sold Per 40 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Stainless Steel AISI 440C - Ribbon Retainer Low Torque Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.004
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.005
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.040
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C - Ribbon Retainer Low Torque
Material: Stainless Steel AISI 440C - Ribbon Retainer Low Torque    Precision Grade: Abec 7   
Category: Bearings - Single Row Ball - Unflanged
Part Number: SR4-MC34-GR7-R-L23 (PK-40)
Out of Stock | Backorder Now | Backorder now for delivery around Tue, Aug 04, 2026
Regular price $2,719.32 AUD
Regular price Sale price $2,719.32 AUD
Priced, Stocked and Sold Per 40 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Stainless Steel AISI 440C Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C
Material: Stainless Steel AISI 440C    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Double black rubber sealed standard stainless steel bearing
Part Number: SR4-2RS-MC3 (Each)
45 Available Now | Further orders can be expected around Sun, Jul 12, 2026
Regular price $4.14 AUD
Regular price Sale price $4.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 45 available can be backordered.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Stainless Steel AISI 440C Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C
Material: Stainless Steel AISI 440C    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Double black rubber sealed standard stainless steel bearing
Part Number: SR4-2RS-MC3 (Each)
45 Available Now | Further orders can be expected around Sun, Jul 12, 2026
Regular price $4.14 AUD
Regular price Sale price $4.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

45 Available Now. Backorder if more than 45.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Stainless Steel AISI 440C - Ribbon Retainer Low Torque Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.005
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.005
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.040
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C - Ribbon Retainer Low Torque
Material: Stainless Steel AISI 440C - Ribbon Retainer Low Torque    Precision Grade: Abec 5   
Category: Bearings - Single Row Ball - Unflanged
Part Number: SR4-FF-MC34-GR5-R-G48 (PK-20)
Out of Stock | Backorder Now | Backorder now for delivery around Tue, Aug 04, 2026
Regular price $1,343.86 AUD
Regular price Sale price $1,343.86 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Stainless Steel AISI 440C - Ribbon Retainer Low Torque Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.005
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.005
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.040
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C - Ribbon Retainer Low Torque
Material: Stainless Steel AISI 440C - Ribbon Retainer Low Torque    Precision Grade: Abec 5   
Category: Bearings - Single Row Ball - Unflanged
Part Number: SR4-FF-MC34-GR5-R-G48 (PK-20)
Out of Stock | Backorder Now | Backorder now for delivery around Tue, Aug 04, 2026
Regular price $1,343.86 AUD
Regular price Sale price $1,343.86 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Stainless Steel AISI 440C - Ribbon Retainer Low Torque Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.004
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.005
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.040
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C - Ribbon Retainer Low Torque
Material: Stainless Steel AISI 440C - Ribbon Retainer Low Torque    Precision Grade: Abec 7   
Category: Bearings - Single Row Ball - Unflanged
Part Number: SR4-FF-MC34-GR7-R-G48 (PK-40)
Out of Stock | Backorder Now | Backorder now for delivery around Tue, Aug 04, 2026
Regular price $3,043.86 AUD
Regular price Sale price $3,043.86 AUD
Priced, Stocked and Sold Per 40 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Stainless Steel AISI 440C - Ribbon Retainer Low Torque Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.004
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.005
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.040
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C - Ribbon Retainer Low Torque
Material: Stainless Steel AISI 440C - Ribbon Retainer Low Torque    Precision Grade: Abec 7   
Category: Bearings - Single Row Ball - Unflanged
Part Number: SR4-FF-MC34-GR7-R-G48 (PK-40)
Out of Stock | Backorder Now | Backorder now for delivery around Tue, Aug 04, 2026
Regular price $3,043.86 AUD
Regular price Sale price $3,043.86 AUD
Priced, Stocked and Sold Per 40 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
O.D. (D)
15.875
mm
Width (B)
4.978
mm
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy   
Category: Bearings - Single Row Ball - Unflanged
Double shielded economy bearing
Part Number: R4-ZZ-ECO (PK-5)
1 pack (5 pcs) Available Now | Further orders can be expected around Mon, Jul 06, 2026
Regular price $7.14 AUD
Regular price Sale price $7.14 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 1 available can be backordered.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
O.D. (D)
15.875
mm
Width (B)
4.978
mm
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy   
Category: Bearings - Single Row Ball - Unflanged
Double shielded economy bearing
Part Number: R4-ZZ-ECO (PK-5)
1 pack (5 pcs) Available Now | Further orders can be expected around Mon, Jul 06, 2026
Regular price $7.14 AUD
Regular price Sale price $7.14 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (5 pcs) Available Now. Backorder if more than 1.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Stainless Steel AISI 440C - Ribbon Retainer Low Torque Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.005
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.005
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.040
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C - Ribbon Retainer Low Torque
Material: Stainless Steel AISI 440C - Ribbon Retainer Low Torque    Precision Grade: Abec 5   
Category: Bearings - Single Row Ball - Unflanged
Part Number: SR4-MC34-GR5-R-L23 (PK-20)
Out of Stock | Backorder Now | Backorder now for delivery around Tue, Aug 04, 2026
Regular price $1,197.86 AUD
Regular price Sale price $1,197.86 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Stainless Steel AISI 440C - Ribbon Retainer Low Torque Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.005
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.005
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.040
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C - Ribbon Retainer Low Torque
Material: Stainless Steel AISI 440C - Ribbon Retainer Low Torque    Precision Grade: Abec 5   
Category: Bearings - Single Row Ball - Unflanged
Part Number: SR4-MC34-GR5-R-L23 (PK-20)
Out of Stock | Backorder Now | Backorder now for delivery around Tue, Aug 04, 2026
Regular price $1,197.86 AUD
Regular price Sale price $1,197.86 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Stainless Steel AISI 440C Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C
Material: Stainless Steel AISI 440C    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Part Number: SR4-MC3-AF12 (PK-50)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Jul 12, 2026
Regular price $296.68 AUD
Regular price $356.02 AUD Sale price $296.68 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Stainless Steel AISI 440C Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C
Material: Stainless Steel AISI 440C    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Part Number: SR4-MC3-AF12 (PK-50)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Jul 12, 2026
Regular price $296.68 AUD
Regular price $356.02 AUD Sale price $296.68 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
O.D. (D)
15.875
mm
Width (B)
4.978
mm
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy   
Category: Bearings - Single Row Ball - Unflanged
Part Number: R4-2RS-ECO (PK-2)
7 units (14 pcs) Available Now | Further orders can be expected around Mon, Jul 06, 2026
Regular price $3.59 AUD
Regular price Sale price $3.59 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 7 available can be backordered.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
O.D. (D)
15.875
mm
Width (B)
4.978
mm
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy   
Category: Bearings - Single Row Ball - Unflanged
Part Number: R4-2RS-ECO (PK-2)
7 units (14 pcs) Available Now | Further orders can be expected around Mon, Jul 06, 2026
Regular price $3.59 AUD
Regular price Sale price $3.59 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

7 units (14 pcs) Available Now. Backorder if more than 7.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage Bearing
ID (d)
6.350
mm
O.D. (D)
15.875
mm
Width (B)
4.978
mm
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage Bearing
Material: Chrome Steel SAE 52100 - High Speed Polyamide Cage    Precision Grade: Economy   
Category: Bearings - Single Row Ball - Unflanged
Part Number: R4-T9H-ECO (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Jul 06, 2026
Regular price $690.14 AUD
Regular price $828.16 AUD Sale price $690.14 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage Bearing
ID (d)
6.350
mm
O.D. (D)
15.875
mm
Width (B)
4.978
mm
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage Bearing
Material: Chrome Steel SAE 52100 - High Speed Polyamide Cage    Precision Grade: Economy   
Category: Bearings - Single Row Ball - Unflanged
Part Number: R4-T9H-ECO (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Jul 06, 2026
Regular price $690.14 AUD
Regular price $828.16 AUD Sale price $690.14 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage - Ceramic Si3N4 Balls Bearing
ID (d)
6.350
mm
O.D. (D)
15.875
mm
Width (B)
4.978
mm
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100 - High Speed Polyamide Cage - Ceramic Si3N4 Balls
Material: Chrome Steel SAE 52100 - High Speed Polyamide Cage - Ceramic Si3N4 Balls    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Double shielded ceramic-hybrid bearing with high speed polyamide retainer and light anti-rust lubricant
Part Number: R4-CSN-T9H-ACO-ECO (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Jul 20, 2026
Regular price $66.05 AUD
Regular price $79.25 AUD Sale price $66.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage - Ceramic Si3N4 Balls Bearing
ID (d)
6.350
mm
O.D. (D)
15.875
mm
Width (B)
4.978
mm
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100 - High Speed Polyamide Cage - Ceramic Si3N4 Balls
Material: Chrome Steel SAE 52100 - High Speed Polyamide Cage - Ceramic Si3N4 Balls    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Double shielded ceramic-hybrid bearing with high speed polyamide retainer and light anti-rust lubricant
Part Number: R4-CSN-T9H-ACO-ECO (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Jul 20, 2026
Regular price $66.05 AUD
Regular price $79.25 AUD Sale price $66.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Stainless Steel AISI 440C Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C
Material: Stainless Steel AISI 440C    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Part Number: SR4-TTS-MC3 (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Stainless Steel AISI 440C Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C
Material: Stainless Steel AISI 440C    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Part Number: SR4-TTS-MC3 (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Sat, Mar 03, 2029
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Open Standard Bearing
Part Number: R4-MC3-ACO (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Open Standard Bearing
Part Number: R4-MC3-ACO (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Sat, Mar 03, 2029
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Double shielded standard bearing
Part Number: R4-ZZ-MC3 (Each)
96 Available Now | More stock due: 200 around Tue, Jul 07, 2026 | Further orders can be expected around Sun, Jul 12, 2026
Regular price $3.95 AUD
Regular price Sale price $3.95 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 96 available can be backordered.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Double shielded standard bearing
Part Number: R4-ZZ-MC3 (Each)
96 Available Now | More stock due: 200 around Tue, Jul 07, 2026 | Further orders can be expected around Sun, Jul 12, 2026
Regular price $3.95 AUD
Regular price Sale price $3.95 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

96 Available Now. Backorder if more than 96.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Part Number: R-4HHRA1P25LY121-TD552 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Part Number: R-4HHRA1P25LY121-TD552 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Sat, Mar 03, 2029
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Part Number: R4-2RS-MC3-NSK (Each)
140 Available Now | Further orders can be expected around Mon, Jul 06, 2026
Regular price $6.59 AUD
Regular price Sale price $6.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 140 available can be backordered.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Part Number: R4-2RS-MC3-NSK (Each)
140 Available Now | Further orders can be expected around Mon, Jul 06, 2026
Regular price $6.59 AUD
Regular price Sale price $6.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

140 Available Now. Backorder if more than 140.
Single Row Ball Bearings - 6.35x15.875x4.978 mm with Snap Ring - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100   
Category: Bearings - Single Row Ball - with Snap Ring
Deleted Item. Available while stocks last. This bearing has a snap ring on the OD
Part Number: R4-2RS-MC3NR (PK-5)
14 units (70 pcs) Available Now | Item Discontinued - Up to 14 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
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

14 units (70 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Single Row Ball Bearings - 6.35x15.875x4.978 mm with Snap Ring - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100   
Category: Bearings - Single Row Ball - with Snap Ring
Deleted Item. Available while stocks last. This bearing has a snap ring on the OD
Part Number: R4-2RS-MC3NR (PK-5)
14 units (70 pcs) Available Now | Item Discontinued - Up to 14 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
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

14 units (70 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.007
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.007
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.120
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6   
Category: Bearings - Single Row Ball - Unflanged
Part Number: R4-ZZ-MC3-JP6 (PK-200)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.007
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.007
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.120
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: P6   
Category: Bearings - Single Row Ball - Unflanged
Part Number: R4-ZZ-MC3-JP6 (PK-200)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Sat, Mar 03, 2029
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Part Number: R4-MC4-ACO (PK-200)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Part Number: R4-MC4-ACO (PK-200)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Sat, Mar 03, 2029
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Part Number: R4-MC5-ACO (PK-200)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Part Number: R4-MC5-ACO (PK-200)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Sat, Mar 03, 2029
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Double rubber sealed standard bearing
Part Number: R4-2RS-MC3 (Each)
186 Available Now | Further orders can be expected around Sun, Jul 12, 2026
Regular price $3.77 AUD
Regular price Sale price $3.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 186 available can be backordered.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Unflanged
Double rubber sealed standard bearing
Part Number: R4-2RS-MC3 (Each)
186 Available Now | Further orders can be expected around Sun, Jul 12, 2026
Regular price $3.77 AUD
Regular price Sale price $3.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

186 Available Now. Backorder if more than 186.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Flanged - Stainless Steel AISI 440C Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Flange Diameter (DF)
17.526
Flange Width (BF)
1.067
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C
Material: Stainless Steel AISI 440C    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Flanged
Part Number: SFR4-MC3 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jul 17, 2026
Regular price $23.05 AUD
Regular price $46.71 AUD Sale price $23.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Flanged - Stainless Steel AISI 440C Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C
Material: Stainless Steel AISI 440C    Flange Diameter (DF): 17.526    Flange Width (BF): 1.067    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Flanged
Part Number: SFR4-MC3 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jul 17, 2026
Regular price $23.05 AUD
Regular price $46.71 AUD Sale price $23.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Flanged - Stainless Steel AISI 440C Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Flange Diameter (DF)
17.526
Flange Width (BF)
1.067
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C
Material: Stainless Steel AISI 440C    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Flanged
Deleted Item. Available while stocks last.
Part Number: SFR4-2RS-MC3 (Each)
146 Available Now | Item Discontinued - Up to 146 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $4.69 AUD
Regular price $9.40 AUD Sale price $4.69 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

146 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Flanged - Stainless Steel AISI 440C Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.0075
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.0075
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.125
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C
Material: Stainless Steel AISI 440C    Flange Diameter (DF): 17.526    Flange Width (BF): 1.067    Precision Grade: Abec 1   
Category: Bearings - Single Row Ball - Flanged
Deleted Item. Available while stocks last.
Part Number: SFR4-2RS-MC3 (Each)
146 Available Now | Item Discontinued - Up to 146 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $4.69 AUD
Regular price $9.40 AUD Sale price $4.69 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

146 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Flanged - Stainless Steel AISI 440C Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.005
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.005
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.040
(Equiv. 0.196 in.)
Flange Diameter (DF)
17.526
Flange Width (BF)
1.067
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C
Material: Stainless Steel AISI 440C    Precision Grade: Abec 5   
Category: Bearings - Single Row Ball - Flanged
Part Number: SFR4-FF-MC34-GR5-R-G48 (PK-20)
Out of Stock | Backorder Now | Backorder now for delivery around Tue, Aug 04, 2026
Regular price $1,814.05 AUD
Regular price Sale price $1,814.05 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 6.35x15.875x4.978 mm Flanged - Stainless Steel AISI 440C Bearing
ID (d)
6.350
mm
+ 0.000 / - 0.005
(Equiv. 0.25 in.)
O.D. (D)
15.875
mm
+ 0.000 / - 0.005
(Equiv. 0.625 in.)
Width (B)
4.978
mm
+ 0.000 / - 0.040
(Equiv. 0.196 in.)
Single Row Ball Bearings - 6.35x15.875x4.978 mm - Stainless Steel AISI 440C
Material: Stainless Steel AISI 440C    Flange Diameter (DF): 17.526    Flange Width (BF): 1.067    Precision Grade: Abec 5   
Category: Bearings - Single Row Ball - Flanged
Part Number: SFR4-FF-MC34-GR5-R-G48 (PK-20)
Out of Stock | Backorder Now | Backorder now for delivery around Tue, Aug 04, 2026
Regular price $1,814.05 AUD
Regular price Sale price $1,814.05 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.