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 | 2.380 mm | Bore diameter |
| D | 7.938 mm | Outside diameter |
| B/B1 | 3.571 mm | Width |
| d1 ≈ | 4.39 mm | Shoulder diameter inner ring |
| D1 ≈ | 7.19 mm | Shoulder diameter outer ring |
| r | 0.2 mm | Chamfer |
| 6 pcs | Ball qty | |
| 1.5875 mm | Ball diameter | |
| ≈m | 1.15 g | Weight |
| Cr | 196 N | Basic dynamic load rating |
| C0r | 71 N | Basic static load rating |
| 56000 r/min | Max speed (Grease) | |
| 66000 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" |
| DDRI-5ZZ | SSRI-5ZZ | SR1-5ZZ | SRA1-5ZZA | SR1-5SS | RF3010X | S5CHH | SSR1-5PP | D/W R1-5-2Z | SS3/32-2Z | SR0620.2Z | 77M0620 | A6K20DD |
