Self-aligning Ball Bearings
Premium self-aligning ball bearings designed to absorb shaft misalignment and installation errors. Features sealed dustproof protection. View our specs now!
Automatic Alignment Ball Bearing Structure Dimensions and Tightness Specifications
This document includes a cross-sectional view of the internal structure of an automatic alignment ball bearing, along with technical specifications for the bearing rings and tightness (L, M, H).
Automatic Alignment Ball Bearing Specification Table
| Model Number | d (mm) | D (mm) | B (mm) | B1 (mm) | d1 (mm) | d2 (mm) | rMinimum (mm) | r1Minimum (mm) | Cr (kN) | Cor (kN) | Remarks |
|---|---|---|---|---|---|---|---|---|---|---|---|
| JB300 | 10 | 35 | 11 | 9 | 27.91 | 25.03 | 0.6 | 0.6 | 8.2 | 3.5 | 軸承為6200 |
| JB201 | 12 | 32 | 10 | 8 | 26.15 | 25.1 | 1 | 0.6 | 6.1 | 2.75 | 軸承為6001 |
| JB301 | 12 | 37 | 12 | 10 | 29.66 | 27.15 | 1 | 0.6 | 9.7 | 4.2 | 軸承為6201 |
| JB202 | 15 | 35 | 11 | 9 | 30.05 | 28.04 | 1 | 0.6 | 7.75 | 3.6 | 軸承為6002 |
| JB302 | 15 | 42 | 13 | 11 | 32.5 | 30.73 | 1 | 0.6 | 11.4 | 5.45 | 軸承為6202 |
| JB203 | 17 | 40 | 12 | 10 | 32.88 | 31.1 | 1 | 0.6 | 9.6 | 4.6 | 軸承為6003 |
| JB303 | 17 | 47 | 14 | 12 | 37.47 | 35.03 | 1 | 0.6 | 13.5 | 6.55 | 軸承為6203 |
| JB204 | 20 | 47 | 14 | 12 | 39.6 | 37.3 | 1.1 | 1 | 12.8 | 6.65 | 軸承為6004 |
| JB304 | 20 | 52 | 15 | 14 | 44.54 | 41.6 | 1.1 | 1 | 15.9 | 7.9 | 軸承為6204 |
| JB205 | 25 | 52 | 15 | 15 | 44.54 | 42 | 1.1 | 1 | 14 | 7.85 | 軸承為6005 |
| JB305 | 25 | 62 | 17 | 17 | 49.14 | 46.4 | 1.1 | 1 | 21.2 | 10.9 | 軸承為6205 |
| JB206 | 30 | 62 | 16 | 16 | 52.62 | 49.4 | 1.1 | 1 | 19.5 | 11.3 | 軸承為6006 |
| JB306 | 30 | 72 | 19 | 19 | 59.02 | 54.42 | 1.1 | 1 | 26.7 | 15 | 軸承為6206 |
- Excellent Self-Aligning Function: Automatically compensates for shaft misalignment caused by machining errors, mounting inaccuracies, or shaft deflection, significantly reducing abnormal bearing loads.
- Dust & Liquid Protection: Equipped with premium seals on both sides to prevent grease leakage and block dust and fluid ingress, ideal for harsh environments.
- Low Friction Operation: Features the lowest friction of all rolling bearings, running cooler even at high speeds.
Basic Structure & Principles
- Structure & Principles: The outer ring has a spherical raceway whose center of curvature perfectly matches the bearing center. This allows the inner ring, balls, and cage to freely tilt and pivot around the center, providing a "self-aligning" effect that maintains smooth operation even when the shaft is misaligned.
- Woodworking, textile, and agricultural machinery.
- Transmission systems with long shafts susceptible to bending.
- Industrial conveyor and material handling equipment.