Inch miniature ball bearings, open, stainless steel
C&H premium inch series instrument and precision miniature ball bearings are designed for compact applications, offering exceptional performance, low friction, and low maintenance. There are perfect for high-speed and precision requirements. Common applications include robotics, medical equipment, electronics, aerospace, automotive, precision instruments, hobby and RC models, and more. Available with 52100 chrome steel or 440C stainless, ABEC-1 to AEBC-9P precision, Z1V1 to Z4V4 noise and vibration, open or shielded.
| d | 3.175 mm | Bore diameter |
| D | 9.525 mm | Outside diameter |
| B/B1 | 3.967 mm | Width |
| d1 ≈ | 5.08 mm | Shoulder diameter inner ring |
| D1 ≈ | 8.18 mm | Shoulder diameter outer ring |
| r | 0.1 mm | Chamfer |
| 7 pcs | Ball qty | |
| 1.5875 mm | Ball diameter | |
| ≈m | 1.37 g | Weight |
| Cr | 289 N | Basic dynamic load rating |
| C0r | 102 N | Basic static load rating |
| 49000 r/min | Max speed (Grease) | |
| 58000 r/min | Max speed (Oil) | |
| P0(ABEC-1) | Tolerane | |
| P25 | Clearance |
| Shield on both sides | Sealing | |
| None | Locating feature outer ring | |
| None | Feature inner ring | |
| 440C | Ring Material | |
| 440C | Ball Material | |
| 304 | Cage Material |
| NMB | NHBB | ISC/NSK | NTN | BARDEN | RMB | MPB | NEW HAMPSHIRE | SKF | GRW | FAG | ADR | MRC | ND | FAFNIR | RHP | "McMaster- Carr ABEC-1" |
| DDR-2ZZ | SSR-2ZZ | SR2ZZ | SR2ZZA | SR2SS | RF4012X | SR2CHH | SR2PP | D/W R2-2Z | SS1/8B-2Z | SR2.2Z | R-2FF-ST | SS77R-2 | A33KDD3 |
