| Bearing no. | 684 |
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| Bore diameter | d | 4 mm0.1575 inch |
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| Outer diameter | D | 9 mm0.3543 inch |
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| Inner ring width | B | 2.5 mm0.0984 inch |
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| Outer ring width | C | 2.5 mm0.0984 inch |
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| Inner ring chamfer dimension | rsi min | 0.1 mm0.0039 inch |
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| Outer ring chamfer dimension | rse min | 0.1 mm0.0039 inch |
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| Basic dynamic load rating | Cr | 641 N |
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| Basic static load rating | Cor | 226 N |
|---|
| Limiting speed | Grease | 63000 min-1 |
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| Oil | 75000 min-1 |
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| Abutment and fillet dimensions | da min | 4.8 mm0.189 inch |
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| da max | 5.1 mm0.2008 inch |
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| Da min | 7.6 mm0.2992 inch |
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| Da max | 8.2 mm0.3228 inch |
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| rasi max | 0.1 mm0.0039 inch |
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| rase max | 0.1 mm0.0039 inch |
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| Ball size × quantity | 1.588 mm0.0625 inch × 7 |
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| Mass (reference) | 0.63 g |
|---|
The above values are subject to change without notice for the improvement of products or other purposes. We have prepared this table with sufficient care, and we cannot be held responsible for any damage caused by possible errors or omissions.
