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Miniature Deep Groove Ball Bearing 693 ZZ / 2Z TN C3 3x8x4 mm
Item number:
693-ZZ-TN-C3
Item features:
For use in special conditions. The miniature ball bearing 693-ZZ / 2Z-TN-C3 is small and suitable for installation with limited space and on thin shafts. Main dimensions according to DIN 625-1.
Technical ScribbleZoomable
Technical Data
| Inside Ø (mm): | 3 |
| Outside Ø (mm): | 8 |
| Width (mm): | 4 |
| Tolerance for inside-Ø (mm): | 0/-0,008 |
| Tolerance for outside-Ø (mm): | 0/-0,008 |
| Tolerance for width (mm): | 0/-0,12 |
| Bore: | cylindrical |
| Extended Inner Ring: | no |
| Seal: | ZZ |
| Sealing material: | Sheet Steel |
| Ring Material: | Rolling Bearing Steel |
| Rolling Element Material: | Rolling Bearing Steel |
| Cage Material: | Plastic |
| Type of lubrication: | greased |
| Lifetime lubricated: | yes |
| Internal Clearance: | C3 (increased clearance) |
| Tolerance Class: | ABEC 1 / P0 |
| Noise and vibration testing: | Class V |
| max. Operating Temperature: | +100°C (briefly up to +150°C) |
| min. Operating Temperature: | -20°C |
| Magnetic: | yes |
| Norm: | DIN 625-1 |
| Item weight: | 9 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
- seal: non-contact gap seal on both sides made of a profiled sheet steel disc (ZZ / 2Z)
- with increased radial internal clearance (C3): for high temperature gradient between the bearing rings or for fastening with press fit
- good fixed bearing property, but can also be used as a floating bearing, each in both directions
- cage material: plastic; the low weight and the elasticity of the plastic have a positive effect on the sliding and emergency running properties as well as the shock resistance; suitable for quiet running
- 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?