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Self-Aligning Bearing Spec Table
Self-Aligning Bearing Specifications — 15 sizes
KS B 2001ISO 15JIS B 1523
A self-aligning bearing that accommodates shaft misalignment between inner and outer rings, suited for long shafts and multi-support structures.
Practical Notes
- Absorbs up to 2–3° misalignment. Ideal for long shafts or where housing alignment is difficult.
- Limited axial load capacity — do not use where significant thrust loads apply.
Selection Guide
Accommodates shaft deflection and housing misalignment (up to 2–3°). Ideal for long shafts, multi-support systems, and low-precision housings. Limited axial load capacity — not suitable for heavy thrust loads.
KSISOJISSelf-Aligning Bearing
5 sizesThe dimensions below are identical across KS B 2001 · ISO 15 · JIS B 1523.
| Nominal | d (Bore) | D (OD) | B (Width) | Cr | rpm |
|---|---|---|---|---|---|
| 1204 | 20 | 47 | 14 | 7280N | 16000 |
| 1205 | 25 | 52 | 15 | 8560N | 14000 |
| 1206 | 30 | 62 | 16 | 13100N | 11000 |
| 1208 | 40 | 80 | 18 | 19000N | 8500 |
| 1210 | 50 | 90 | 20 | 21200N | 7000 |
Key Features
- Spherical outer raceway compensates up to 2–3° misalignment (shaft deflection)
- Series 1200/2200 (self-aligning ball) / 1300/2300 (self-aligning roller) distinguished
- Double-row ball arrangement for stable rotation; axial load capacity is limited
Key Applications
Agricultural machine drive shafts, textile machine rollers, mining conveyors, long fan shafts, multi-support shafts
FAQ
How does self-aligning work?
Spherical outer ring raceway allows normal ball rolling even when the inner ring tilts. Absorbs up to 2–3° misalignment.