Spherical Roller Bearings
Double-row, self-aligning design for shock and heavy loads in mining, screens, pulp & paper, and steel.
Spherical Roller Bearings
Double-row, self-aligning design for shock and heavy loads in mining, screens, pulp & paper, and steel.
Bearing Overview & Dimensions


Main Dimensions
- dBore (inner diameter)
- DOuter diameter
- BWidth
Chamfers
- rChamfer radius (min)
| Bearing No. | Main Dimension (mm) | Weight (kg) | Basic load rating (KN) | Max Runout Speed (r/min) | Adapter Sleeve | ||||
|---|---|---|---|---|---|---|---|---|---|
| Bored | Outer DiameterD | WidthB | Cr | Cor | Grease | Oil | |||
| 21304 | 20 | 52 | 15 | 0.16 | 32.0 | 32.0 | 6,000 | 7,500 | H304 |
| 21305 | 25 | 62 | 17 | 0.28 | 42.0 | 45.0 | 5,300 | 6,700 | H305 |
| 21306 | 30 | 72 | 19 | 0.38 | 52.0 | 58.0 | 4,500 | 6,000 | H306 |
| 21307 | 35 | 80 | 21 | 0.50 | 65.0 | 75.0 | 4,000 | 5,300 | H307 |
| 21308 | 40 | 90 | 23 | 0.75 | 89.0 | 99.0 | 3,600 | 4,500 | H308 |
| 21309 | 45 | 100 | 25 | 0.99 | 106.0 | 118.0 | 3,200 | 4,000 | H309 |
| 21310 | 50 | 110 | 27 | 1.30 | 124.0 | 144.0 | 2,800 | 3,800 | H310 |
| 21311 | 55 | 120 | 29 | 1.66 | 146.0 | 175.0 | 2,600 | 3,400 | H311 |
| 21312 | 60 | 130 | 31 | 1.99 | 167.0 | 201.0 | 2,200 | 3,000 | H312 |
| 21313 | 65 | 140 | 33 | 2.45 | 188.0 | 235.0 | 2,000 | 2,800 | H313 |
| 21314 | 70 | 150 | 35 | 2.98 | 218.0 | 276.0 | 1,900 | 2,600 | H314 |
| 21315 | 75 | 160 | 37 | 3.63 | 245.0 | 311.0 | 1,800 | 2,400 | H315 |
| 21316 | 80 | 170 | 39 | 4.29 | 268.0 | 359.0 | 1,750 | 2,300 | H316 |
| 21317 | 85 | 180 | 41 | 5.19 | 307.0 | 397.0 | 1,700 | 2,200 | H317 |
| 21318 | 90 | 190 | 43 | 6.09 | 330.0 | 433.0 | 1,550 | 2,050 | H318 |
| 21319 | 95 | 200 | 45 | 7.10 | 366.0 | 500.0 | 1,550 | 1,950 | H319 |
| 21320 | 100 | 215 | 47 | 8.80 | 397.0 | 546.0 | 1,450 | 1,850 | H320 |
| 21321 | 105 | 225 | 49 | 10.00 | 420.0 | 575.0 | 1,200 | 1,500 | H321 |
| 21322 | 110 | 240 | 50 | 11.80 | 460.0 | 535.0 | 1,300 | 1,500 | H322 |
MB / MBK, CA / CAK, CC / CCK, MA, E, and W33 cage variants; tapered bore (K) and adapter sleeve mounting available.
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.
Contact Technical Sales