Englisch
Deutsch
Miniature Deep Groove Ball Bearing Inch R2A ZZ / 2Z 3.175 x 12.7 x 4.366 mm
Item number:
R2A-ZZ
Item features:
For use in special conditions. The miniature ball bearing R2A-ZZ / 2Z in inch-size is small and suitable for installation with limited space and on thin shafts. It can withstand very high speeds.
Technical ScribbleZoomable
Technical Data
| Inside Ø (mm): | 3.175 |
| Outside Ø (mm): | 12.7 |
| Width (mm): | 4.366 |
| max. Operating Temperature: | +120°C |
| min. Operating Temperature: | -20°C |
| Tolerance Class: | ABEC 1 / P0 |
| Tolerance for inside-Ø (mm): | 0/-0,008 |
| Tolerance for outside-Ø (mm): | 0/-0,008 |
| Tolerance for width (mm): | 0/-0,12 |
| Noise and vibration testing: | Class V |
| Extended Inner Ring: | no |
| Bore: | cylindrical |
| Internal Clearance: | CN (Standard) |
| Seal: | ZZ |
| Sealing material: | Sheet Steel |
| Ring Material: | Rolling Bearing Steel |
| Rolling Element Material: | Rolling Bearing Steel |
| Cage Material: | Sheet Steel |
| Magnetic: | yes |
| Type of lubrication: | greased |
| Lifetime lubricated: | yes |
| Norm: | DIN 625-1 |
| Item weight: | 3,2 g |
Features
- miniature ball bearing with smallest dimensions
- suitable for high radial loads and light axial loads in both directions
- suitable for high running accuracy, quiet running and very high speeds
- seal: non-contact gap seal on both sides made of a profiled sheet steel disc (ZZ / 2Z) for higher speeds than with rubber seal
- good fixed bearing property, but can also be used as a floating bearing, each in both directions
- manufacturers of bearings, such as FAG, KOYO, NSK, SKF, SNR, etc. assign different suffixes for their characteristics, for better orientation take note of the comparison table of bearings (see further information)
Further Information
- What does radial and axial load capacity mean?
- Fit recommendations for mounting
- Info sheet ball bearing
- Information about ball bearing seals
- Internal clearance and operating clearance
- Comparison list of roller bearings
- Comparison of features of roller bearings
- How do I clean my bearings?
- How do I grease or oil my bearings?
- How do I remove a sealing washer or cover plate?