GRW High Precision Ball Bearings
Open ball bearings inch
High precision ball bearings in grades up to ABEC 9 with bores from 1 to 30mm and comparable inch dimensions
General Information
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DEEP GROOVE OPEN BALL BEARINGS
Inch Series
| Bore Ø (d) | Outer Ø (D) | Flange Ø (FD) | Open Width (B) | Open Flange Width (FB) | Radius (rs – min) (2) | Open Part No | Shield Width (B1) | Load Rating Cr (N) | Load Rating Cor (N) | Limiting Speed (6) Nur (x 1000 rpm) | Ball Comple ment Qty.: Z (5) | Ball Comple ment Size: Dw |
| 0.0400 | 0.125 | 0.17098 | 0.0469 | 0.01299 | 0.003 | 1016 | 51 | 11 | 148 | 5 | 0.025 | |
| 0.0469 | 0.1562 | 0.203 | 0.0625 | 0.013 | 0.003 | 1191 | 0.0937 | 163 | 44 | 129 | 6 | 0.0313 |
| 0.0550 | 0.1875 | 0.234 | 0.0781 | 0.023 | 0.003 | 1397 | 0.1094 | 239 | 67 | 114 | 6 | 0.0394 |
| 0.0781 | 0.25 | 0.296 | 0.0937 | 0.023 | 0.003 | 5/64 | 0.125 | 286 | 90 | 95 | 7 | 0.0394 |
| 0.0937 | 0.1875 | 0.234 | 0.0625 | 0.018 | 0.003 | 2380 | 0.0937 | 192 | 59 | 94 | 7 | 0.0313 |
| 0.0937 | 0.3125 | 0.359 | 0.1094 | 0.023 | 0.005 | 3/32 | 0.1406 | 644 | 215 | 62 | 7 | 0.0625 |
| 0.1250 | 0.25 | 0.296 | 0.0937 | 0.023 | 0.003 | 3175 | 0.125 | 292 | 97 | 80 | 7 | 0.0394 |
| 0.1250 | 0.3125 | 0.359 | 0.1094 | 0.023 | 0.003 | 1/8A | 0.1406 | 644 | 215 | 65 | 7 | 0.0625 |
| 0.1250 | 0.375 | 0.44 | 0.1562 | 0.03 | 0.012 | 1/8B | 0.1875 | 720 | 260 | 61 | 8 | 0.0625 |
| 0.1250 | 0.5 | 0.1719 | 0.012 | 1/8B/083 | 720 | 260 | 74 | 8 | 0.0625 | |||
| 0.1562 | 0.3125 | 0.359 | 0.1094 | 0.023 | 0.003 | 3967 | 0.1406 | 391 | 165 | 62 | 11 | 0.0394 |
| 0.1562 | 0.5 | 0.1094 | 0.003 | 3967/8 | 0.1406 | 391 | 165 | 69 | 11 | 0.0394 | ||
| 0.1875 | 0.3125 | 0.359 | 0.1094 | 0.023 | 0.003 | 4763A | 0.1406 | 391 | 165 | 65 | 11 | 0.0394 |
| 0.1875 | 0.375 | 0.422 | 0.125 | 0.023 | 0.003 | 4763B | 0.1562 | 730 | 271 | 56 | 8 | 0.0625 |
| 0.1875 | 0.5 | 0.1094 | 0.003 | 4763A/8 | 0.1406 | 391 | 162 | 70 | 11 | 0.0394 | ||
| 0.1875 | 0.5 | 0.1562 | 0.012 | 3/16 | 1.339 | 488 | 50 | 7 | 0.0938 | |||
| 0.2500 | 0.375 | 0.422 | 0.125 | 0.023 | 0.003 | 6350A | 0.1562 | 391 | 165 | 54 | 11 | 0.0394 |
| 0.2500 | 0.5 | 0.547 | 0.125 | 0.023 | 0.005 | 6350B | 0.1562 | 730 | 271 | 38 | 8 | 0.0781 |
| 0.2500 | 0.625 | 0.69 | 0.196 | 0.042 | 0.012 | 1/4A | 0.2272 | 1.651 | 670 | 43 | 8 | 0.0984 |
| 0.2500 | 0.75 | 0.2188 | 0.016 | 1/4 | 2.522 | 1.057 | 35 | 8 | 0.125 | |||
| 0.3125 | 0.5 | 0.547 | 0.1562 | 0.031 | 0.005 | 7938 | 0.1875 | 539 | 279 | 45 | 12 | 0.0469 |
| 0.3750 | 0.875 | 0.2188 | 0.016 | 3/8 | 2.555 | 1.129 | 30 | 8 | 0.125 |
- Ball bearings without closure may be supplied with recesses. Please advise if you require bearings without recesses.
- rs min = minimum single bearing chamfer or maximum shaft or housing fillet radius.
- Not applicable to bearings with extended inner ring.
- Not applicable to flanged bearings.
- The number of balls may vary due to different types of retainer.
- See ‘Limiting Speeds’.
- Tolerance of bore +12µm to +3µm.
- Available in different width with closure.
