Collection: Bearings - Single Row Ball - Unflanged - Precision
Bearings -> Single Row Ball -> Unflanged -> Precision| ID (d) | O.D. (D) | Width (B) | Inner Ring Width (Bn) | Flange Diameter (DF) | Flange Width (BF) |
Indicative Image |
|---|---|---|---|---|---|---|
| Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075
(Equiv. 0.157 in.) |
O.D. (D)
8.000
mm + 0.000 / - 0.0075 (Equiv. 0.315 in.) |
Width (B)
3.000
mm + 0.000 / - 0.125 (Equiv. 0.118 in.) |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: Abec 1
Closure Type: ZZ
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel Double shielded standard bearing |
||||||
|
Part Number: MR84A-ZZ-MC3 (Each)
188 Available Now | Further orders can be expected around Fri, Jul 10, 2026 Regular price
$3.59 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| ID (d) | O.D. (D) | Width (B) | Inner Ring Width (Bn) |
Indicative Image |
||
| Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075 (Equiv. 0.157 in.) |
O.D. (D)
8.000
mm + 0.000 / - 0.0075 (Equiv. 0.315 in.) |
Width (B)
3.000
mm + 0.000 / - 0.125 (Equiv. 0.118 in.) |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: Abec 1
Closure Type: ZZ
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel Double shielded standard bearing |
||||||
|
Part Number: MR84A-ZZ-MC3 (Each)
188 Available Now | Further orders can be expected around Fri, Jul 10, 2026 Regular price
$3.59 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x8x2 mm Unflanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075
(Equiv. 0.157 in.) |
O.D. (D)
8.000
mm + 0.000 / - 0.0075 (Equiv. 0.315 in.) |
Width (B)
2.000
mm + 0.000 / - 0.125 (Equiv. 0.079 in.) |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: Abec 1
Closure Type: Open
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel |
||||||
|
Part Number: MR84-MC3-AF12 (PK-50)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jul 10, 2026 Regular price
$268.59 AUD
Regular price
Unit price
/
per
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x8x2 mm Unflanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075 (Equiv. 0.157 in.) |
O.D. (D)
8.000
mm + 0.000 / - 0.0075 (Equiv. 0.315 in.) |
Width (B)
2.000
mm + 0.000 / - 0.125 (Equiv. 0.079 in.) |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: Abec 1
Closure Type: Open
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel |
||||||
|
Part Number: MR84-MC3-AF12 (PK-50)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jul 10, 2026 Regular price
$268.59 AUD
Regular price
Unit price
/
per
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm |
O.D. (D)
8.000
mm |
Width (B)
3.000
mm |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: Economy
Closure Type: ZZS
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel Double shielded economy bearing |
||||||
|
Part Number: MR84A-ZZS-ECO (PK-5)
33 units (165 pcs) Available Now | Further orders can be expected around Sat, Jul 04, 2026 Regular price
$3.95 AUD
Regular price
Unit price
/
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm |
O.D. (D)
8.000
mm |
Width (B)
3.000
mm |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: Economy
Closure Type: ZZS
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel Double shielded economy bearing |
||||||
|
Part Number: MR84A-ZZS-ECO (PK-5)
33 units (165 pcs) Available Now | Further orders can be expected around Sat, Jul 04, 2026 Regular price
$3.95 AUD
Regular price
Unit price
/
per
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.007
(Equiv. 0.157 in.) |
O.D. (D)
8.000
mm + 0.000 / - 0.007 (Equiv. 0.315 in.) |
Width (B)
3.000
mm + 0.000 / - 0.120 (Equiv. 0.118 in.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: P6
Closure Type: ZZ
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless Double shielded P6 precision stainless steel bearing |
||||||
|
Part Number: SMR84A-ZZ-MC3-JP6 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jul 17, 2026 Regular price
$22.68 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.007 (Equiv. 0.157 in.) |
O.D. (D)
8.000
mm + 0.000 / - 0.007 (Equiv. 0.315 in.) |
Width (B)
3.000
mm + 0.000 / - 0.120 (Equiv. 0.118 in.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: P6
Closure Type: ZZ
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless Double shielded P6 precision stainless steel bearing |
||||||
|
Part Number: SMR84A-ZZ-MC3-JP6 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jul 17, 2026 Regular price
$22.68 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.007
(Equiv. 0.157 in.) |
O.D. (D)
8.000
mm + 0.000 / - 0.007 (Equiv. 0.315 in.) |
Width (B)
3.000
mm + 0.000 / - 0.120 (Equiv. 0.118 in.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: P6
Closure Type: Open
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless Open P6 precision stainless steel bearing |
||||||
|
Part Number: SMR84A-MC3-JP6-AF12 (Each)
Out of Stock | Backorder Now | More stock due: 150 around Fri, Aug 21, 2026 | Further orders can be expected around Tue, Aug 25, 2026 Regular price
$8.86 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.007 (Equiv. 0.157 in.) |
O.D. (D)
8.000
mm + 0.000 / - 0.007 (Equiv. 0.315 in.) |
Width (B)
3.000
mm + 0.000 / - 0.120 (Equiv. 0.118 in.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: P6
Closure Type: Open
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless Open P6 precision stainless steel bearing |
||||||
|
Part Number: SMR84A-MC3-JP6-AF12 (Each)
Out of Stock | Backorder Now | More stock due: 150 around Fri, Aug 21, 2026 | Further orders can be expected around Tue, Aug 25, 2026 Regular price
$8.86 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.007
(Equiv. 0.157 in.) |
O.D. (D)
8.000
mm + 0.000 / - 0.007 (Equiv. 0.315 in.) |
Width (B)
3.000
mm + 0.000 / - 0.120 (Equiv. 0.118 in.) |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: P6
Closure Type: ZZ
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel |
||||||
|
Part Number: MR84A-ZZ-MC3-JP6 (PK-50)
Contact Us | Special Order Only - Please contact us if you need a large quantity |
||||||
| Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.007 (Equiv. 0.157 in.) |
O.D. (D)
8.000
mm + 0.000 / - 0.007 (Equiv. 0.315 in.) |
Width (B)
3.000
mm + 0.000 / - 0.120 (Equiv. 0.118 in.) |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: P6
Closure Type: ZZ
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel |
||||||
|
Part Number: MR84A-ZZ-MC3-JP6 (PK-50)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Thu, Mar 01, 2029 |
||||||
| Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075
(Equiv. 0.157 in.) |
O.D. (D)
8.000
mm + 0.000 / - 0.0075 (Equiv. 0.315 in.) |
Width (B)
3.000
mm + 0.000 / - 0.125 (Equiv. 0.118 in.) |
|
|||
|
Material: Chrome Steel SAE 52100 - High Speed Polyamide Cage
Precision Grade: Abec 1
Closure Type: ZZ
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - High Speed Cage |
||||||
|
Part Number: MR84A-ZZ-MC3-T9H (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 04, 2026 Regular price
$4.23 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x8x3 mm Unflanged - Chrome Steel SAE 52100 - High Speed Polyamide Cage Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075 (Equiv. 0.157 in.) |
O.D. (D)
8.000
mm + 0.000 / - 0.0075 (Equiv. 0.315 in.) |
Width (B)
3.000
mm + 0.000 / - 0.125 (Equiv. 0.118 in.) |
|
|||
|
Material: Chrome Steel SAE 52100 - High Speed Polyamide Cage
Precision Grade: Abec 1
Closure Type: ZZ
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - High Speed Cage |
||||||
|
Part Number: MR84A-ZZ-MC3-T9H (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 04, 2026 Regular price
$4.23 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075
(Equiv. 0.157 in.) |
O.D. (D)
8.000
mm + 0.000 / - 0.0075 (Equiv. 0.315 in.) |
Width (B)
3.000
mm + 0.000 / - 0.125 (Equiv. 0.118 in.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 1
Closure Type: ZZ
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless Double shielded standard stainless steel bearing |
||||||
|
Part Number: SMR84A-ZZ-MC3 (Each)
163 Available Now | Further orders can be expected around Sat, Jul 04, 2026 Regular price
$6.86 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.0075 (Equiv. 0.157 in.) |
O.D. (D)
8.000
mm + 0.000 / - 0.0075 (Equiv. 0.315 in.) |
Width (B)
3.000
mm + 0.000 / - 0.125 (Equiv. 0.118 in.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: Abec 1
Closure Type: ZZ
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless Double shielded standard stainless steel bearing |
||||||
|
Part Number: SMR84A-ZZ-MC3 (Each)
163 Available Now | Further orders can be expected around Sat, Jul 04, 2026 Regular price
$6.86 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.007
(Equiv. 0.157 in.) |
O.D. (D)
8.000
mm + 0.000 / - 0.007 (Equiv. 0.315 in.) |
Width (B)
3.000
mm + 0.000 / - 0.120 (Equiv. 0.118 in.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: P6
Closure Type: Open
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless |
||||||
|
Part Number: SMR84A-MC3-JP6-L23 (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Tue, Nov 03, 2026 Regular price
$419.41 AUD
Regular price
Unit price
/
per
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x8x3 mm Unflanged - Stainless Steel AISI 440C Bearing | ||||||
|
ID (d)
4.000
mm + 0.000 / - 0.007 (Equiv. 0.157 in.) |
O.D. (D)
8.000
mm + 0.000 / - 0.007 (Equiv. 0.315 in.) |
Width (B)
3.000
mm + 0.000 / - 0.120 (Equiv. 0.118 in.) |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: P6
Closure Type: Open
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless |
||||||
|
Part Number: SMR84A-MC3-JP6-L23 (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Tue, Nov 03, 2026 Regular price
$419.41 AUD
Regular price
Unit price
/
per
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x8x5 mm Unflanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm |
O.D. (D)
8.000
mm |
Width (B)
5.000
mm |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: Economy
Closure Type: ZZS
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel Deleted Item. Available while stocks last. Non ISO Width |
||||||
|
Part Number: MR84D-ZZS-ECO (Each)
16 Available Now | Item Discontinued - Up to 16 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price
$8.00 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x8x5 mm Unflanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm |
O.D. (D)
8.000
mm |
Width (B)
5.000
mm |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: Economy
Closure Type: ZZS
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel Deleted Item. Available while stocks last. Non ISO Width |
||||||
|
Part Number: MR84D-ZZS-ECO (Each)
16 Available Now | Item Discontinued - Up to 16 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price
$8.00 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 / - 0.007
(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
Precision Grade: P6
Closure Type: Open
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless Open P6 precision bearing with low-torque cage and light oil lubricant |
||||||
|
Part Number: S684-MC3-JP6-AF12 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jul 17, 2026 Regular price
$22.68 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 / - 0.007 (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
Precision Grade: P6
Closure Type: Open
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless Open P6 precision bearing with low-torque cage and light oil lubricant |
||||||
|
Part Number: S684-MC3-JP6-AF12 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jul 17, 2026 Regular price
$22.68 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 |
O.D. (D)
9.000
mm |
Width (B)
2.500
mm |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: Economy
Closure Type: ZZS
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel |
||||||
|
Part Number: 684-ZZS-ECO (Each)
19 Available Now | Further orders can be expected around Sat, Jul 04, 2026 Regular price
$1.86 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 |
O.D. (D)
9.000
mm |
Width (B)
2.500
mm |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: Economy
Closure Type: ZZS
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel |
||||||
|
Part Number: 684-ZZS-ECO (Each)
19 Available Now | Further orders can be expected around Sat, Jul 04, 2026 Regular price
$1.86 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
|
||||||
| Single Row Ball Bearings - 4x9x3 mm Unflanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm |
O.D. (D)
9.000
mm |
Width (B)
3.000
mm |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: Economy
Closure Type: ZZS
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel |
||||||
|
Part Number: 684D-ZZS-ECO (Each)
88 Available Now | Further orders can be expected around Sat, Jul 04, 2026 Regular price
$3.59 AUD
Regular price
Unit price
/
per
Each
Excludes GST and overseas Taxes & Duties |
||||||
| Single Row Ball Bearings - 4x9x3 mm Unflanged - Chrome Steel SAE 52100 Bearing | ||||||
|
ID (d)
4.000
mm |
O.D. (D)
9.000
mm |
Width (B)
3.000
mm |
|
|||
|
Material: Chrome Steel SAE 52100
Precision Grade: Economy
Closure Type: ZZS
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel |
||||||
|
Part Number: 684D-ZZS-ECO (Each)
88 Available Now | Further orders can be expected around Sat, Jul 04, 2026 Regular price
$3.59 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
Closure Type: Open
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless |
||||||
|
Part Number: S684-MC2-AF12 (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jul 10, 2026 Regular price
$352.14 AUD
Regular price
Unit price
/
per
Priced, Stocked and Sold Per 100 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
Closure Type: Open
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless |
||||||
|
Part Number: S684-MC2-AF12 (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jul 10, 2026 Regular price
$352.14 AUD
Regular price
Unit price
/
per
Priced, Stocked and Sold Per 100 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
Closure Type: Open
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless |
||||||
|
Part Number: S684-MC3-AF12 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jul 10, 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
Closure Type: Open
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless |
||||||
|
Part Number: S684-MC3-AF12 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Fri, Jul 10, 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
Closure Type: Open
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless |
||||||
|
Part Number: S684-MC3-R-AF12 (Each)
107 Available Now | Further orders can be expected around Sat, Jul 04, 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
Closure Type: Open
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless |
||||||
|
Part Number: S684-MC3-R-AF12 (Each)
107 Available Now | Further orders can be expected around Sat, Jul 04, 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
Closure Type: Open
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel |
||||||
|
Part Number: 684-MC3-AF12 (Each)
22 Available Now | Further orders can be expected around Fri, Jul 10, 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
Closure Type: Open
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel |
||||||
|
Part Number: 684-MC3-AF12 (Each)
22 Available Now | Further orders can be expected around Fri, Jul 10, 2026 Regular price
$3.68 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 |
O.D. (D)
9.000
mm |
Width (B)
4.000
mm |
|
|||
|
Material: Stainless Steel AISI 440C
Precision Grade: Economy
Closure Type: ZZS
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless |
||||||
|
Part Number: S684A-ZZS-ECO (Each)
90 Available Now | Further orders can be expected around Sat, Jul 04, 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
Closure Type: ZZS
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless |
||||||
|
Part Number: S684A-ZZS-ECO (Each)
90 Available Now | Further orders can be expected around Sat, Jul 04, 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
Closure Type: 2RS
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel |
||||||
|
Part Number: 684A-2RS-ECO (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Jul 13, 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
Closure Type: 2RS
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel |
||||||
|
Part Number: 684A-2RS-ECO (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Jul 13, 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
Closure Type: 2RB
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel |
||||||
|
Part Number: 684A-2RB-ECO (Each)
750 Available Now | Further orders can be expected around Sat, Jul 04, 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
Closure Type: 2RB
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel |
||||||
|
Part Number: 684A-2RB-ECO (Each)
750 Available Now | Further orders can be expected around Sat, Jul 04, 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
Closure Type: ZZ
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless Non ISO Width |
||||||
|
Part Number: S684B-ZZ-MC3 (Each)
97 Available Now | Further orders can be expected around Fri, Jul 10, 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
Closure Type: ZZ
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless Non ISO Width |
||||||
|
Part Number: S684B-ZZ-MC3 (Each)
97 Available Now | Further orders can be expected around Fri, Jul 10, 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
Closure Type: ZZ
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel Non ISO Width |
||||||
|
Part Number: 684B-ZZ-MC3 (Each)
258 Available Now | Further orders can be expected around Fri, Jul 10, 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
Closure Type: ZZ
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel Non ISO Width |
||||||
|
Part Number: 684B-ZZ-MC3 (Each)
258 Available Now | Further orders can be expected around Fri, Jul 10, 2026 Regular price
$4.95 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
Closure Type: ZZ
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless Double shielded P6 precision stainless steel bearing |
||||||
|
Part Number: S684A-ZZ-MC3-JP6 (Each)
4 Available Now | Further orders can be expected around Fri, Jul 10, 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
Closure Type: ZZ
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless Double shielded P6 precision stainless steel bearing |
||||||
|
Part Number: S684A-ZZ-MC3-JP6 (Each)
4 Available Now | Further orders can be expected around Fri, Jul 10, 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
Closure Type: ZZ
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless |
||||||
|
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
Closure Type: ZZ
Bearing Type: Radial
Category: Bearings - Single Row Ball - Unflanged - Precision - 440C Stainless |
||||||
|
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 Thu, Mar 01, 2029 |
||||||





















