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

Bearings -> Single Row Ball -> Unflanged -> Precision -> Chrome Steel
ID (d) OD (D) Width (B) Inner Ring Width (Bn) Flange Diameter (DF) Flange Width (BF) Indicative
Image
Single Row Ball Bearings - 4x9x3.5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
OD (D)
9.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.354 in.)
Width (B)
3.500
mm
+ 0.000 / - 0.125
(Equiv. 0.138 in.)
Single Row Ball Bearings - 4x9x3.5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZ    Bearing Type: Radial   
Non ISO Width
Part Number: 684B-ZZ-MC3 (Each)
262 Available Now | Further orders can be expected around Thu, Feb 12, 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 262 available can be backordered.
ID (d) OD (D) Width (B) Inner Ring Width (Bn) Indicative
Image
Single Row Ball Bearings - 4x9x3.5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
OD (D)
9.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.354 in.)
Width (B)
3.500
mm
+ 0.000 / - 0.125
(Equiv. 0.138 in.)
Single Row Ball Bearings - 4x9x3.5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZ    Bearing Type: Radial   
Non ISO Width
Part Number: 684B-ZZ-MC3 (Each)
262 Available Now | Further orders can be expected around Thu, Feb 12, 2026
Regular price $5.68 AUD
Regular price Sale price $5.68 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

262 Available Now. Backorder if more than 262.
Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
9.000
mm

(Equiv. 0.354 in.)
Width (B)
4.000
mm

(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x9x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2RB    Bearing Type: Radial   
Part Number: 684A-2RB-ECO (Each)
750 Available Now | Further orders can be expected around Sat, Jan 24, 2026
Regular price $1.95 AUD
Regular price Sale price $1.95 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 750 available can be backordered.
Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
9.000
mm

(Equiv. 0.354 in.)
Width (B)
4.000
mm

(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x9x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2RB    Bearing Type: Radial   
Part Number: 684A-2RB-ECO (Each)
750 Available Now | Further orders can be expected around Sat, Jan 24, 2026
Regular price $1.95 AUD
Regular price Sale price $1.95 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

750 Available Now. Backorder if more than 750.
Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
9.000
mm

(Equiv. 0.354 in.)
Width (B)
4.000
mm

(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x9x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: ZZS    Bearing Type: Radial   
Deleted Item. Available while stocks last.
Part Number: 684A-ZZS-ECO (PK-5)
4 units (20 pcs) Available Now | Item Discontinued - Up to 4 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $3.49 AUD
Regular price $6.02 AUD Sale price $3.49 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

4 units (20 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
9.000
mm

(Equiv. 0.354 in.)
Width (B)
4.000
mm

(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x9x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: ZZS    Bearing Type: Radial   
Deleted Item. Available while stocks last.
Part Number: 684A-ZZS-ECO (PK-5)
4 units (20 pcs) Available Now | Item Discontinued - Up to 4 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $3.49 AUD
Regular price $6.02 AUD Sale price $3.49 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

4 units (20 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
OD (D)
9.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.354 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.125
(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x9x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 684A-ZZ-MC3 (PK-2)
251 units (502 pcs) Available Now | Further orders can be expected around Thu, Feb 12, 2026
Regular price $6.68 AUD
Regular price Sale price $6.68 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 251 available can be backordered.
Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
OD (D)
9.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.354 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.125
(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x9x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 684A-ZZ-MC3 (PK-2)
251 units (502 pcs) Available Now | Further orders can be expected around Thu, Feb 12, 2026
Regular price $6.68 AUD
Regular price Sale price $6.68 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

251 units (502 pcs) Available Now. Backorder if more than 251.
Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
OD (D)
9.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.354 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.125
(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x9x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: 2RS    Bearing Type: Radial   
Part Number: 684A-2RS-MC3 (Each)
73 Available Now | Further orders can be expected around Thu, Feb 12, 2026
Regular price $6.23 AUD
Regular price Sale price $6.23 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 73 available can be backordered.
Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
OD (D)
9.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.354 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.125
(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x9x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: 2RS    Bearing Type: Radial   
Part Number: 684A-2RS-MC3 (Each)
73 Available Now | Further orders can be expected around Thu, Feb 12, 2026
Regular price $6.23 AUD
Regular price Sale price $6.23 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

73 Available Now. Backorder if more than 73.
Single Row Ball Bearings - 4x10x3 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
10.000
mm

(Equiv. 0.394 in.)
Width (B)
3.000
mm

(Equiv. 0.118 in.)
Single Row Ball Bearings - 4x10x3 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2RB    Bearing Type: Radial   
Deleted Item. Available while stocks last. Non ISO Width
Part Number: MR104-2RB-ECO (Each)
185 Available Now | Item Discontinued - Up to 185 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $4.00 AUD
Regular price $7.60 AUD Sale price $4.00 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

185 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Single Row Ball Bearings - 4x10x3 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
10.000
mm

(Equiv. 0.394 in.)
Width (B)
3.000
mm

(Equiv. 0.118 in.)
Single Row Ball Bearings - 4x10x3 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2RB    Bearing Type: Radial   
Deleted Item. Available while stocks last. Non ISO Width
Part Number: MR104-2RB-ECO (Each)
185 Available Now | Item Discontinued - Up to 185 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $4.00 AUD
Regular price $7.60 AUD Sale price $4.00 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

185 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Single Row Ball Bearings - 4x10x3 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
10.000
mm

(Equiv. 0.394 in.)
Width (B)
3.000
mm

(Equiv. 0.118 in.)
Single Row Ball Bearings - 4x10x3 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: ZZS    Bearing Type: Radial   
Non ISO Width
Part Number: MR104-ZZS-ECO (Each)
576 Available Now | Further orders can be expected around Sat, Jan 24, 2026
Regular price $2.59 AUD
Regular price Sale price $2.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 576 available can be backordered.
Single Row Ball Bearings - 4x10x3 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
10.000
mm

(Equiv. 0.394 in.)
Width (B)
3.000
mm

(Equiv. 0.118 in.)
Single Row Ball Bearings - 4x10x3 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: ZZS    Bearing Type: Radial   
Non ISO Width
Part Number: MR104-ZZS-ECO (Each)
576 Available Now | Further orders can be expected around Sat, Jan 24, 2026
Regular price $2.59 AUD
Regular price Sale price $2.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

576 Available Now. Backorder if more than 576.
Single Row Ball Bearings - 4x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
OD (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 - 4x10x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZ    Bearing Type: Radial   
Part Number: MR104A-ZZ-MC3 (Each)
85 Available Now | Further orders can be expected around Thu, Feb 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 85 available can be backordered.
Single Row Ball Bearings - 4x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
OD (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 - 4x10x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZ    Bearing Type: Radial   
Part Number: MR104A-ZZ-MC3 (Each)
85 Available Now | Further orders can be expected around Thu, Feb 12, 2026
Regular price $4.14 AUD
Regular price Sale price $4.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

85 Available Now. Backorder if more than 85.
Single Row Ball Bearings - 4x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
10.000
mm

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

(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x10x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2RB    Bearing Type: Radial   
Deleted Item. Available while stocks last. Deleted Item. Available while stocks last.
Part Number: MR104A-2RB-ECO (PK-10)
18 units (180 pcs) Available Now | Item Discontinued - Up to 18 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $20.00 AUD
Regular price $38.00 AUD Sale price $20.00 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

18 units (180 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Single Row Ball Bearings - 4x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
10.000
mm

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

(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x10x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2RB    Bearing Type: Radial   
Deleted Item. Available while stocks last. Deleted Item. Available while stocks last.
Part Number: MR104A-2RB-ECO (PK-10)
18 units (180 pcs) Available Now | Item Discontinued - Up to 18 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $20.00 AUD
Regular price $38.00 AUD Sale price $20.00 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

18 units (180 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Single Row Ball Bearings - 4x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
10.000
mm

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

(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x10x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2RS    Bearing Type: Radial   
Part Number: MR104A-2RS-ECO (PK-2)
18 units (36 pcs) Available Now | Further orders can be expected around Sat, Jan 24, 2026
Regular price $1.23 AUD
Regular price $2.09 AUD Sale price $1.23 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 18 available can be backordered.
Single Row Ball Bearings - 4x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
10.000
mm

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

(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x10x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2RS    Bearing Type: Radial   
Part Number: MR104A-2RS-ECO (PK-2)
18 units (36 pcs) Available Now | Further orders can be expected around Sat, Jan 24, 2026
Regular price $1.23 AUD
Regular price $2.09 AUD Sale price $1.23 AUD
Priced, Stocked and Sold Per 2 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

18 units (36 pcs) Available Now. Backorder if more than 18.
Single Row Ball Bearings - 4x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
10.000
mm

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

(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x10x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: ZZ    Bearing Type: Radial   
Part Number: MR104A-ZZ-ECO (PK-5)
32 units (160 pcs) Available Now | Further orders can be expected around Sat, Jan 24, 2026
Regular price $5.77 AUD
Regular price Sale price $5.77 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 32 available can be backordered.
Single Row Ball Bearings - 4x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
10.000
mm

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

(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x10x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: ZZ    Bearing Type: Radial   
Part Number: MR104A-ZZ-ECO (PK-5)
32 units (160 pcs) Available Now | Further orders can be expected around Sat, Jan 24, 2026
Regular price $5.77 AUD
Regular price Sale price $5.77 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

32 units (160 pcs) Available Now. Backorder if more than 32.
Single Row Ball Bearings - 4x11x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
11.000
mm

(Equiv. 0.433 in.)
Width (B)
4.000
mm

(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x11x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: ZZS    Bearing Type: Radial   
Deleted Item. Available while stocks last.
Part Number: 694-ZZS-ECO (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 $3.64 AUD
Regular price $6.99 AUD Sale price $3.64 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 - 4x11x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
11.000
mm

(Equiv. 0.433 in.)
Width (B)
4.000
mm

(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x11x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: ZZS    Bearing Type: Radial   
Deleted Item. Available while stocks last.
Part Number: 694-ZZS-ECO (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 $3.64 AUD
Regular price $6.99 AUD Sale price $3.64 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 - 4x11x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
11.000
mm

(Equiv. 0.433 in.)
Width (B)
4.000
mm

(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x11x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2RS    Bearing Type: Radial   
Deleted Item. Available while stocks last.
Part Number: 694-2RS-ECO (PK-5)
181 units (905 pcs) Available Now | Item Discontinued - Up to 181 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $5.36 AUD
Regular price $6.44 AUD Sale price $5.36 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

181 units (905 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Single Row Ball Bearings - 4x11x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
11.000
mm

(Equiv. 0.433 in.)
Width (B)
4.000
mm

(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x11x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2RS    Bearing Type: Radial   
Deleted Item. Available while stocks last.
Part Number: 694-2RS-ECO (PK-5)
181 units (905 pcs) Available Now | Item Discontinued - Up to 181 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $5.36 AUD
Regular price $6.44 AUD Sale price $5.36 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

181 units (905 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Single Row Ball Bearings - 4x11x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
OD (D)
11.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.433 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.125
(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x11x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 694-ZZ-MC3 (Each)
177 Available Now | Further orders can be expected around Thu, Feb 12, 2026
Regular price $3.68 AUD
Regular price Sale price $3.68 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 177 available can be backordered.
Single Row Ball Bearings - 4x11x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
OD (D)
11.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.433 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.125
(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x11x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 694-ZZ-MC3 (Each)
177 Available Now | Further orders can be expected around Thu, Feb 12, 2026
Regular price $3.68 AUD
Regular price Sale price $3.68 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

177 Available Now. Backorder if more than 177.
Single Row Ball Bearings - 4x12x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

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

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

(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x12x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2RS    Bearing Type: Radial   
Part Number: 604-2RS-ECO (PK-10)
42 units (420 pcs) Available Now | Further orders can be expected around Sat, Jan 24, 2026
Regular price $11.32 AUD
Regular price Sale price $11.32 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 42 available can be backordered.
Single Row Ball Bearings - 4x12x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

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

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

(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x12x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2RS    Bearing Type: Radial   
Part Number: 604-2RS-ECO (PK-10)
42 units (420 pcs) Available Now | Further orders can be expected around Sat, Jan 24, 2026
Regular price $11.32 AUD
Regular price Sale price $11.32 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

42 units (420 pcs) Available Now. Backorder if more than 42.
Single Row Ball Bearings - 4x12x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
OD (D)
12.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.472 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.125
(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x12x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: 2RS    Bearing Type: Radial   
Part Number: 604-2RS-MC3 (Each)
3 Available Now | Further orders can be expected around Thu, Feb 12, 2026
Regular price $4.05 AUD
Regular price Sale price $4.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 3 available can be backordered.
Single Row Ball Bearings - 4x12x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
OD (D)
12.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.472 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.125
(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x12x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: 2RS    Bearing Type: Radial   
Part Number: 604-2RS-MC3 (Each)
3 Available Now | Further orders can be expected around Thu, Feb 12, 2026
Regular price $4.05 AUD
Regular price Sale price $4.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

3 Available Now. Backorder if more than 3.
Single Row Ball Bearings - 4x12x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
OD (D)
12.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.472 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.125
(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x12x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 604-ZZ-MC3 (Each)
143 Available Now | Further orders can be expected around Sat, Jan 24, 2026
Regular price $4.86 AUD
Regular price Sale price $4.86 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 143 available can be backordered.
Single Row Ball Bearings - 4x12x4 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
OD (D)
12.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.472 in.)
Width (B)
4.000
mm
+ 0.000 / - 0.125
(Equiv. 0.157 in.)
Single Row Ball Bearings - 4x12x4 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 604-ZZ-MC3 (Each)
143 Available Now | Further orders can be expected around Sat, Jan 24, 2026
Regular price $4.86 AUD
Regular price Sale price $4.86 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

143 Available Now. Backorder if more than 143.
Single Row Ball Bearings - 4x13x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

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

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

(Equiv. 0.197 in.)
Single Row Ball Bearings - 4x13x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2RS    Bearing Type: Radial   
Deleted Item. Available while stocks last.
Part Number: 624-2RS-ECO (PK-5)
101 units (505 pcs) Available Now | Item Discontinued - Up to 101 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $3.64 AUD
Regular price $4.36 AUD Sale price $3.64 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

101 units (505 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Single Row Ball Bearings - 4x13x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

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

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

(Equiv. 0.197 in.)
Single Row Ball Bearings - 4x13x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2RS    Bearing Type: Radial   
Deleted Item. Available while stocks last.
Part Number: 624-2RS-ECO (PK-5)
101 units (505 pcs) Available Now | Item Discontinued - Up to 101 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $3.64 AUD
Regular price $4.36 AUD Sale price $3.64 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

101 units (505 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Single Row Ball Bearings - 4x13x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

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

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

(Equiv. 0.197 in.)
Single Row Ball Bearings - 4x13x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: ZZS    Bearing Type: Radial   
Deleted Item. Available while stocks last.
Part Number: 624-ZZS-ECO (PK-5)
36 units (180 pcs) Available Now | Item Discontinued - Up to 36 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $3.49 AUD
Regular price $7.10 AUD Sale price $3.49 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

36 units (180 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Single Row Ball Bearings - 4x13x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

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

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

(Equiv. 0.197 in.)
Single Row Ball Bearings - 4x13x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: ZZS    Bearing Type: Radial   
Deleted Item. Available while stocks last.
Part Number: 624-ZZS-ECO (PK-5)
36 units (180 pcs) Available Now | Item Discontinued - Up to 36 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $3.49 AUD
Regular price $7.10 AUD Sale price $3.49 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

36 units (180 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Single Row Ball Bearings - 4x13x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
OD (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 - 4x13x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: 2RS    Bearing Type: Radial   
Part Number: 624-2RS-MC3 (Each)
128 Available Now | Further orders can be expected around Thu, Feb 12, 2026
Regular price $5.23 AUD
Regular price Sale price $5.23 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 128 available can be backordered.
Single Row Ball Bearings - 4x13x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
OD (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 - 4x13x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: 2RS    Bearing Type: Radial   
Part Number: 624-2RS-MC3 (Each)
128 Available Now | Further orders can be expected around Thu, Feb 12, 2026
Regular price $5.23 AUD
Regular price Sale price $5.23 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

128 Available Now. Backorder if more than 128.
Single Row Ball Bearings - 4x13x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
OD (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 - 4x13x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: 2RU    Bearing Type: Radial   
Part Number: 624-2RU-MC3 (Each)
95 Available Now | Further orders can be expected around Thu, Feb 12, 2026
Regular price $3.41 AUD
Regular price $5.96 AUD Sale price $3.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 95 available can be backordered.
Single Row Ball Bearings - 4x13x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
OD (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 - 4x13x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: 2RU    Bearing Type: Radial   
Part Number: 624-2RU-MC3 (Each)
95 Available Now | Further orders can be expected around Thu, Feb 12, 2026
Regular price $3.41 AUD
Regular price $5.96 AUD Sale price $3.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

95 Available Now. Backorder if more than 95.
Single Row Ball Bearings - 4x13x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
OD (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 - 4x13x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 624-ZZ-MC3 (Each)
41 Available Now | Further orders can be expected around Thu, Feb 12, 2026
Regular price $4.23 AUD
Regular price Sale price $4.23 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 41 available can be backordered.
Single Row Ball Bearings - 4x13x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm
+ 0.000 / - 0.0075
(Equiv. 0.157 in.)
OD (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 - 4x13x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Abec 1    Closure Type: ZZ    Bearing Type: Radial   
Part Number: 624-ZZ-MC3 (Each)
41 Available Now | Further orders can be expected around Thu, Feb 12, 2026
Regular price $4.23 AUD
Regular price Sale price $4.23 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

41 Available Now. Backorder if more than 41.
Single Row Ball Bearings - 4x16x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
16.000
mm

(Equiv. 0.63 in.)
Width (B)
5.000
mm

(Equiv. 0.197 in.)
Single Row Ball Bearings - 4x16x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: ZZ    Bearing Type: Radial   
Deleted Item. Available while stocks last.
Part Number: 634-ZZ-ECO (PK-5)
96 units (480 pcs) Available Now | Item Discontinued - Up to 96 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $3.71 AUD
Regular price $8.30 AUD Sale price $3.71 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

96 units (480 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Single Row Ball Bearings - 4x16x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
16.000
mm

(Equiv. 0.63 in.)
Width (B)
5.000
mm

(Equiv. 0.197 in.)
Single Row Ball Bearings - 4x16x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: ZZ    Bearing Type: Radial   
Deleted Item. Available while stocks last.
Part Number: 634-ZZ-ECO (PK-5)
96 units (480 pcs) Available Now | Item Discontinued - Up to 96 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $3.71 AUD
Regular price $8.30 AUD Sale price $3.71 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

96 units (480 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Single Row Ball Bearings - 4x16x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
16.000
mm

(Equiv. 0.63 in.)
Width (B)
5.000
mm

(Equiv. 0.197 in.)
Single Row Ball Bearings - 4x16x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2RS    Bearing Type: Radial   
Part Number: 634-2RS-ECO (Each)
Out of Stock | Backorder Now | Orders can be expected around Mon, Feb 02, 2026
Regular price $4.50 AUD
Regular price Sale price $4.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Single Row Ball Bearings - 4x16x5 mm Unflanged - Chrome Steel SAE 52100 Bearing
ID (d)
4.000
mm

(Equiv. 0.157 in.)
OD (D)
16.000
mm

(Equiv. 0.63 in.)
Width (B)
5.000
mm

(Equiv. 0.197 in.)
Single Row Ball Bearings - 4x16x5 mm - Chrome Steel SAE 52100
Material: Chrome Steel SAE 52100    Precision Grade: Economy    Closure Type: 2RS    Bearing Type: Radial   
Part Number: 634-2RS-ECO (Each)
Out of Stock | Backorder Now | Orders can be expected around Mon, Feb 02, 2026
Regular price $4.50 AUD
Regular price Sale price $4.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.