Product Catalog
Miniature Bearings
Small-bore precision for instruments and micro motors; shields, seals, and low torque for tight spaces.
Miniature Bearings
Small-bore precision for instruments and micro motors; shields, seals, and low torque for tight spaces.
High PrecisionCompact
Bearing Overview & Dimensions
Product overview · Series summary · Miniature dimensions
Small-bore precision bearings for instruments, micro motors, and compact OEM assemblies.
Main Dimensions
- dBore (inner diameter)
- DOuter diameter
- BWidth
- rCorner radius (min)
Seal Types
- OpenNo seal — lowest friction
- ZZMetal shields (double)
- 2RSRubber seals (double)
- 68/69Thin-wall miniature series
68xx SeriesThin Wall13 models
| Bearing No. | Main Dimension (mm) | Load Rating (kN) | Max Runout Speed (r/min) | Weight (kg) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Bored | Outer DiameterD | WidthB | Radiusr min | Dynamic | Static | Grease | Oil | ||
| 683 | 3 | 7 | 2 | 0.1 | 0.45 | 0.16 | 75,000 | 90,000 | 0.001 |
| 684 | 4 | 9 | 2.5 | 0.1 | 0.65 | 0.24 | 65,000 | 78,000 | 0.002 |
| 685 | 5 | 11 | 3 | 0.2 | 0.88 | 0.38 | 58,000 | 70,000 | 0.003 |
| 686 | 6 | 13 | 3.5 | 0.2 | 1.15 | 0.47 | 52,000 | 63,000 | 0.004 |
| 687 | 7 | 14 | 3.5 | 0.2 | 1.18 | 0.52 | 50,000 | 60,000 | 0.004 |
| 688 | 8 | 16 | 4 | 0.2 | 1.38 | 0.62 | 46,000 | 55,000 | 0.006 |
| 689 | 9 | 17 | 4 | 0.2 | 1.42 | 0.68 | 44,000 | 53,000 | 0.006 |
| 6800 | 10 | 19 | 5 | 0.3 | 1.92 | 0.88 | 40,000 | 48,000 | 0.008 |
| 6801 | 12 | 21 | 5 | 0.3 | 2.08 | 1.02 | 36,000 | 43,000 | 0.009 |
| 6802 | 15 | 24 | 5 | 0.3 | 2.15 | 1.15 | 32,000 | 38,000 | 0.011 |
| 6803 | 17 | 26 | 5 | 0.3 | 2.22 | 1.25 | 30,000 | 36,000 | 0.012 |
| 6804 | 20 | 32 | 7 | 0.3 | 3.58 | 2.05 | 26,000 | 31,000 | 0.022 |
| 6805 | 25 | 37 | 7 | 0.3 | 4.05 | 2.55 | 22,000 | 26,000 | 0.026 |
Open, ZZ metal shields, and 2RS rubber seals available on request.
Dimensions, seals, and precision grades vary by suffix (e.g. -2RS, -ZZ). Contact us for the full catalog or OEM specifications.
Need Custom Specifications?
We offer dedicated OEM/ODM customization services to meet your specific engineering requirements. Let our technical team provide the perfect solution.
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