| ID (d) | O.D. (D) | Width (B) | Inner Ring Width (Bn) | Flange Diameter (DF) | Flange Width (BF) |
Indicative Image |
|---|---|---|---|---|---|---|
| Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C - Ribbon Retainer Low Torque Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.005
(Equiv. 0.157 in.) |
O.D. (D)
9.000
mm + 0.000 / - 0.005 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.040 (Equiv. 0.098 in.) |
|
|||
|
Material: Stainless Steel AISI 440C - Ribbon Retainer Low Torque
Precision Grade: Abec 5
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: S684-MC34-GR5-L23 (PK-40)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Aug 03, 2026 Regular price
$1,056.86 AUD
Regular price
Unit price
/
per
Priced, Stocked and Sold Per 40 Units
Excludes GST and overseas Taxes & Duties |
||||||
| ID (d) | O.D. (D) | Width (B) | Inner Ring Width (Bn) |
Indicative Image |
||
| Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C - Ribbon Retainer Low Torque Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.005 (Equiv. 0.157 in.) |
O.D. (D)
9.000
mm + 0.000 / - 0.005 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.040 (Equiv. 0.098 in.) |
|
|||
|
Material: Stainless Steel AISI 440C - Ribbon Retainer Low Torque
Precision Grade: Abec 5
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: S684-MC34-GR5-L23 (PK-40)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Aug 03, 2026 Regular price
$1,056.86 AUD
Regular price
Unit price
/
per
Priced, Stocked and Sold Per 40 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C - Ribbon Retainer Low Torque Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.004
(Equiv. 0.157 in.) |
O.D. (D)
9.000
mm + 0.000 / - 0.005 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.040 (Equiv. 0.098 in.) |
|
|||
|
Material: Stainless Steel AISI 440C - Ribbon Retainer Low Torque
Precision Grade: Abec 7
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: S684-MC34-GR7-R-L23 (PK-68)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Aug 03, 2026 Regular price
$2,550.95 AUD
Regular price
Unit price
/
per
Priced, Stocked and Sold Per 68 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C - Ribbon Retainer Low Torque Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.004 (Equiv. 0.157 in.) |
O.D. (D)
9.000
mm + 0.000 / - 0.005 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.040 (Equiv. 0.098 in.) |
|
|||
|
Material: Stainless Steel AISI 440C - Ribbon Retainer Low Torque
Precision Grade: Abec 7
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: S684-MC34-GR7-R-L23 (PK-68)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Aug 03, 2026 Regular price
$2,550.95 AUD
Regular price
Unit price
/
per
Priced, Stocked and Sold Per 68 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075
(Equiv. 0.157 in.) |
O.D. (D)
9.000
mm + 0.000 / - 0.0075 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.125 (Equiv. 0.098 in.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: S684-MC3-AF12 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$3.14 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075 (Equiv. 0.157 in.) |
O.D. (D)
9.000
mm + 0.000 / - 0.0075 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.125 (Equiv. 0.098 in.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: S684-MC3-AF12 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$3.14 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.005
(Equiv. 0.157 in.) |
O.D. (D)
9.000
mm + 0.000 / - 0.005 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.040 (Equiv. 0.098 in.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 5
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: S684-MC4-GR5-R-AF12 (PK-1000)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Oct 11, 2026 Regular price
$8,620.50 AUD
Regular price
Unit price
/
per
Priced, Stocked and Sold Per 1000 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.005 (Equiv. 0.157 in.) |
O.D. (D)
9.000
mm + 0.000 / - 0.005 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.040 (Equiv. 0.098 in.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 5
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: S684-MC4-GR5-R-AF12 (PK-1000)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Oct 11, 2026 Regular price
$8,620.50 AUD
Regular price
Unit price
/
per
Priced, Stocked and Sold Per 1000 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075
(Equiv. 0.157 in.) |
O.D. (D)
9.000
mm + 0.000 / - 0.0075 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.125 (Equiv. 0.098 in.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: S684-MC3-R-AF12 (Each)
107 Available Now | Further orders can be expected around Sun, Jul 05, 2026 Regular price
$8.95 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075 (Equiv. 0.157 in.) |
O.D. (D)
9.000
mm + 0.000 / - 0.0075 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.125 (Equiv. 0.098 in.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: S684-MC3-R-AF12 (Each)
107 Available Now | Further orders can be expected around Sun, Jul 05, 2026 Regular price
$8.95 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075
(Equiv. 0.157 in.) |
O.D. (D)
9.000
mm + 0.000 / - 0.0075 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.125 (Equiv. 0.098 in.) |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: 684-MC3-AF12 (Each)
22 Available Now | Further orders can be expected around Sat, Jul 11, 2026 Regular price
$3.68 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x9x2.5 mm Unflanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075 (Equiv. 0.157 in.) |
O.D. (D)
9.000
mm + 0.000 / - 0.0075 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.125 (Equiv. 0.098 in.) |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: 684-MC3-AF12 (Each)
22 Available Now | Further orders can be expected around Sat, Jul 11, 2026 Regular price
$3.68 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x9x2.5 mm Flanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.005
(Equiv. 0.157 in.) |
O.D. (D)
9.000
mm + 0.000 / - 0.005 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.040 (Equiv. 0.098 in.) |
Flange Diameter (DF)
10.300
|
Flange Width (BF)
0.600
|
|
|
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 5
Category: Bearings - Single Row Ball - Flanged |
||||||
|
Part Number: SF684-MC34-GR5-R-L23 (PK-40)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Aug 03, 2026 Regular price
$1,658.59 AUD
Regular price
Unit price
/
per
Priced, Stocked and Sold Per 40 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x9x2.5 mm Flanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.005 (Equiv. 0.157 in.) |
O.D. (D)
9.000
mm + 0.000 / - 0.005 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.040 (Equiv. 0.098 in.) |
|
|||
|
Material: Stainless Steel AISI 440C
Flange Diameter (DF): 10.300
Flange Width (BF): 0.600
Precision Grade: Abec 5
Category: Bearings - Single Row Ball - Flanged |
||||||
|
Part Number: SF684-MC34-GR5-R-L23 (PK-40)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Aug 03, 2026 Regular price
$1,658.59 AUD
Regular price
Unit price
/
per
Priced, Stocked and Sold Per 40 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x9x2.5 mm Flanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075
(Equiv. 0.157 in.) |
O.D. (D)
9.000
mm + 0.000 / - 0.0075 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.125 (Equiv. 0.098 in.) |
Flange Diameter (DF)
10.300
|
Flange Width (BF)
0.600
|
|
|
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Flanged Open flanged stainless steel bearing |
||||||
|
Part Number: SF684-MC3-AF12 (Each)
200 Available Now | Item Discontinued - Up to 200 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price
$2.59 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x9x2.5 mm Flanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075 (Equiv. 0.157 in.) |
O.D. (D)
9.000
mm + 0.000 / - 0.0075 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.125 (Equiv. 0.098 in.) |
|
|||
|
Material: Stainless Steel AISI 440C
Flange Diameter (DF): 10.300
Flange Width (BF): 0.600
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Flanged Open flanged stainless steel bearing |
||||||
|
Part Number: SF684-MC3-AF12 (Each)
200 Available Now | Item Discontinued - Up to 200 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price
$2.59 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x9x4 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm |
O.D. (D)
9.000
mm |
Width (B)
4.000
mm |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: Economy
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: S684A-ZZS-ECO (Each)
90 Available Now | Further orders can be expected around Sun, Jul 05, 2026 Regular price
$3.77 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x9x4 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm |
O.D. (D)
9.000
mm |
Width (B)
4.000
mm |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: Economy
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: S684A-ZZS-ECO (Each)
90 Available Now | Further orders can be expected around Sun, Jul 05, 2026 Regular price
$3.77 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x9x2.5 mm Flanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.004
(Equiv. 0.157 in.) |
O.D. (D)
9.000
mm + 0.000 / - 0.005 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.040 (Equiv. 0.098 in.) |
Flange Diameter (DF)
10.300
|
Flange Width (BF)
0.600
|
|
|
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 7
Category: Bearings - Single Row Ball - Flanged |
||||||
|
Part Number: SF684-MC34-GR7-R-L23 (PK-57)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Aug 03, 2026 Regular price
$2,582.05 AUD
Regular price
Unit price
/
per
Priced, Stocked and Sold Per 57 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x9x2.5 mm Flanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.004 (Equiv. 0.157 in.) |
O.D. (D)
9.000
mm + 0.000 / - 0.005 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.040 (Equiv. 0.098 in.) |
|
|||
|
Material: Stainless Steel AISI 440C
Flange Diameter (DF): 10.300
Flange Width (BF): 0.600
Precision Grade: Abec 7
Category: Bearings - Single Row Ball - Flanged |
||||||
|
Part Number: SF684-MC34-GR7-R-L23 (PK-57)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Aug 03, 2026 Regular price
$2,582.05 AUD
Regular price
Unit price
/
per
Priced, Stocked and Sold Per 57 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x9x2.5 mm Flanged - Stainless Steel AISI 440C 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)
2.500
mm + 0.000 / - 0.120 (Equiv. 0.098 in.) |
Flange Diameter (DF)
10.300
|
Flange Width (BF)
0.600
|
|
|
|
Material: Stainless Steel AISI 440C
Precision Grade: P6
Category: Bearings - Single Row Ball - Flanged |
||||||
|
Part Number: SF684-MC3-JP6-AF12 (PK-50)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$332.50 AUD
Regular price
Unit price
/
per
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x9x2.5 mm Flanged - Stainless Steel AISI 440C 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)
2.500
mm + 0.000 / - 0.120 (Equiv. 0.098 in.) |
|
|||
|
Material: Stainless Steel AISI 440C
Flange Diameter (DF): 10.300
Flange Width (BF): 0.600
Precision Grade: P6
Category: Bearings - Single Row Ball - Flanged |
||||||
|
Part Number: SF684-MC3-JP6-AF12 (PK-50)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026 Regular price
$332.50 AUD
Regular price
Unit price
/
per
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm |
O.D. (D)
9.000
mm |
Width (B)
4.000
mm |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: Economy
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: 684A-2RS-ECO (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Tue, Jul 14, 2026 Regular price
$3.77 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm |
O.D. (D)
9.000
mm |
Width (B)
4.000
mm |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: Economy
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: 684A-2RS-ECO (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Tue, Jul 14, 2026 Regular price
$3.77 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x9x2.5 mm Flanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075
(Equiv. 0.157 in.) |
O.D. (D)
9.000
mm + 0.000 / - 0.0075 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.125 (Equiv. 0.098 in.) |
Flange Diameter (DF)
10.300
|
Flange Width (BF)
0.600
|
|
|
|
Material: Chrome Steel SAE 52100
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Flanged Open standard bearing |
||||||
|
Part Number: F684-MC3 (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity |
||||||
| Single Row Ball Bearings - 4x9x2.5 mm Flanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075 (Equiv. 0.157 in.) |
O.D. (D)
9.000
mm + 0.000 / - 0.0075 (Equiv. 0.354 in.) |
Width (B)
2.500
mm + 0.000 / - 0.125 (Equiv. 0.098 in.) |
|
|||
|
Material: Chrome Steel SAE 52100
Flange Diameter (DF): 10.300
Flange Width (BF): 0.600
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Flanged Open standard bearing |
||||||
|
Part Number: F684-MC3 (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Fri, Mar 02, 2029 |
||||||
| Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm |
O.D. (D)
9.000
mm |
Width (B)
4.000
mm |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: Economy
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: 684A-2RB-ECO (Each)
750 Available Now | Further orders can be expected around Sun, Jul 05, 2026 Regular price
$1.86 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm |
O.D. (D)
9.000
mm |
Width (B)
4.000
mm |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: Economy
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: 684A-2RB-ECO (Each)
750 Available Now | Further orders can be expected around Sun, Jul 05, 2026 Regular price
$1.86 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x9x3.5 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075
(Equiv. 0.157 in.) |
O.D. (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.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged Non ISO Width |
||||||
|
Part Number: S684B-ZZ-MC3 (Each)
97 Available Now | Further orders can be expected around Sat, Jul 11, 2026 Regular price
$4.50 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x9x3.5 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075 (Equiv. 0.157 in.) |
O.D. (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.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged Non ISO Width |
||||||
|
Part Number: S684B-ZZ-MC3 (Each)
97 Available Now | Further orders can be expected around Sat, Jul 11, 2026 Regular price
$4.50 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| 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.) |
O.D. (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.) |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged Non ISO Width |
||||||
|
Part Number: 684B-ZZ-MC3 (Each)
258 Available Now | Further orders can be expected around Sat, Jul 11, 2026 Regular price
$4.95 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| 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.) |
O.D. (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.) |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged Non ISO Width |
||||||
|
Part Number: 684B-ZZ-MC3 (Each)
258 Available Now | Further orders can be expected around Sat, Jul 11, 2026 Regular price
$4.95 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x9x4 mm Flanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm |
O.D. (D)
9.000
mm |
Width (B)
4.000
mm |
Flange Diameter (DF)
10.300
|
Flange Width (BF)
1.000
|
|
|
|
Material: Stainless Steel AISI 440C
Precision Grade: Economy
Category: Bearings - Single Row Ball - Flanged |
||||||
|
Part Number: SF684A-ZZ-ECO (Each)
10 Available Now | Further orders can be expected around Tue, Jul 14, 2026 Regular price
$3.32 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x9x4 mm Flanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm |
O.D. (D)
9.000
mm |
Width (B)
4.000
mm |
|
|||
|
Material: Stainless Steel AISI 440C
Flange Diameter (DF): 10.300
Flange Width (BF): 1.000
Precision Grade: Economy
Category: Bearings - Single Row Ball - Flanged |
||||||
|
Part Number: SF684A-ZZ-ECO (Each)
10 Available Now | Further orders can be expected around Tue, Jul 14, 2026 Regular price
$3.32 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x9x3.5 mm Flanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075
(Equiv. 0.157 in.) |
O.D. (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.) |
Flange Diameter (DF)
10.300
|
Flange Width (BF)
0.600
|
|
|
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Flanged |
||||||
|
Part Number: SF684B-ZZ-MC3 (Each)
73 Available Now | Item Discontinued - Up to 73 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price
$2.68 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x9x3.5 mm Flanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075 (Equiv. 0.157 in.) |
O.D. (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.) |
|
|||
|
Material: Stainless Steel AISI 440C
Flange Diameter (DF): 10.300
Flange Width (BF): 0.600
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Flanged |
||||||
|
Part Number: SF684B-ZZ-MC3 (Each)
73 Available Now | Item Discontinued - Up to 73 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price
$2.68 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x9x4 mm Unflanged - Stainless Steel AISI 440C 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.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: P6
Category: Bearings - Single Row Ball - Unflanged Double shielded P6 precision stainless steel bearing |
||||||
|
Part Number: S684A-ZZ-MC3-JP6 (Each)
4 Available Now | Further orders can be expected around Sat, Jul 11, 2026 Regular price
$4.86 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x9x4 mm Unflanged - Stainless Steel AISI 440C 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.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: P6
Category: Bearings - Single Row Ball - Unflanged Double shielded P6 precision stainless steel bearing |
||||||
|
Part Number: S684A-ZZ-MC3-JP6 (Each)
4 Available Now | Further orders can be expected around Sat, Jul 11, 2026 Regular price
$4.86 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x9x4 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075
(Equiv. 0.157 in.) |
O.D. (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.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: S684A-ZZ-MC3-DRY (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity |
||||||
| Single Row Ball Bearings - 4x9x4 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075 (Equiv. 0.157 in.) |
O.D. (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.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: S684A-ZZ-MC3-DRY (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Fri, Mar 02, 2029 |
||||||
| Single Row Ball Bearings - 4x9x4 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075
(Equiv. 0.157 in.) |
O.D. (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.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: S684A-ZZ-MC34-NMB (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity |
||||||
| Single Row Ball Bearings - 4x9x4 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075 (Equiv. 0.157 in.) |
O.D. (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.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: S684A-ZZ-MC34-NMB (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Fri, Mar 02, 2029 |
||||||
| Single Row Ball Bearings - 4x9x4 mm Flanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm |
O.D. (D)
9.000
mm |
Width (B)
4.000
mm |
Flange Diameter (DF)
10.300
|
Flange Width (BF)
1.000
|
|
|
|
Material: Chrome Steel SAE 52100
Precision Grade: Economy
Category: Bearings - Single Row Ball - Flanged |
||||||
|
Part Number: F684A-ZZ-ECO (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Tue, Jul 14, 2026 Regular price
$3.32 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x9x4 mm Flanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm |
O.D. (D)
9.000
mm |
Width (B)
4.000
mm |
|
|||
|
Material: Chrome Steel SAE 52100
Flange Diameter (DF): 10.300
Flange Width (BF): 1.000
Precision Grade: Economy
Category: Bearings - Single Row Ball - Flanged |
||||||
|
Part Number: F684A-ZZ-ECO (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Tue, Jul 14, 2026 Regular price
$3.32 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x9x4 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075
(Equiv. 0.157 in.) |
O.D. (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.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged Double shielded standard stainless steel bearing |
||||||
|
Part Number: S684A-ZZ-MC3 (Each)
158 Available Now | Further orders can be expected around Sat, Jul 11, 2026 Regular price
$3.77 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x9x4 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075 (Equiv. 0.157 in.) |
O.D. (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.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged Double shielded standard stainless steel bearing |
||||||
|
Part Number: S684A-ZZ-MC3 (Each)
158 Available Now | Further orders can be expected around Sat, Jul 11, 2026 Regular price
$3.77 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x9x4 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075
(Equiv. 0.157 in.) |
O.D. (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.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: S684A-TTS-MC3 (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity |
||||||
| Single Row Ball Bearings - 4x9x4 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075 (Equiv. 0.157 in.) |
O.D. (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.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 1
Category: Bearings - Single Row Ball - Unflanged |
||||||
|
Part Number: S684A-TTS-MC3 (PK-100)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Fri, Mar 02, 2029 |
||||||



















