| Item # | d | D | B | r | Static Load Rating | Dynamic Load Rating |
| 1200 | 0.3937 in 10.000 mm |
1.1811 in 30.000 mm |
0.3543 in 9.000 mm |
0.0236 in 0.600 mm |
268 lbf 1190 N 1.19 kN |
1250 lbf 5550 N 5.55 kN |
| 1201 | 0.4724 in 12.000 mm |
1.2598 in 32.000 mm |
0.3937 in 10.000 mm |
0.0236 in 0.600 mm |
286 lbf 1270 N 1.27 kN |
1280 lbf 5700 N 5.70 kN |
| 1202 | 0.5906 in 15.000 mm |
1.3780 in 35.000 mm |
0.4331 in 11.000 mm |
0.0236 in 0.600 mm |
395 lbf 1750 N 1.75 kN |
1710 lbf 7600 N 7.60 kN |
| 1203 | 0.6693 in 17.000 mm |
1.5748 in 40.000 mm |
0.4724 in 12.000 mm |
0.0236 in 0.600 mm |
450 lbf 2010 N 2.01 kN |
1800 lbf 8000 N 8.00 kN |
| 1204 | 0.7874 in 20.000 mm |
1.8504 in 47.000 mm |
0.5512 in 14.000 mm |
0.0394 in 1.000 mm |
585 lbf 2610 N 2.61 kN |
2250 lbf 10000 N 10.00 kN |
| 1205 | 0.9843 in 25.000 mm |
2.0472 in 52.000 mm |
0.5906 in 15.000 mm |
0.0394 in 1.000 mm |
740 lbf 3300 N 3.30 kN |
2740 lbf 12200 N 12.20 kN |
| 1206 | 1.1811 in 30.000 mm |
2.4409 in 62.000 mm |
0.6299 in 16.000 mm |
0.0394 in 1.000 mm |
1050 lbf 4650 N 4.65 kN |
3550 lbf 15800 N 15.80 kN |
| 1207 | 1.3780 in 35.000 mm |
2.8346 in 72.000 mm |
0.6693 in 17.000 mm |
0.0433 in 1.100 mm |
1150 lbf 5100 N 5.10 kN |
3550 lbf 15900 N 15.90 kN |
| 1208 | 1.5748 in 40.000 mm |
3.1496 in 80.000 mm |
0.7087 in 18.000 mm |
0.0433 in 1.100 mm |
1460 lbf 6500 N 6.50 kN |
4350 lbf 19300 N 19.30 kN |
| 1209 | 1.7717 in 45.000 mm |
3.3465 in 85.000 mm |
0.7480 in 19.000 mm |
0.0433 in 1.100 mm |
1650 lbf 7350 N 7.35 kN |
4950 lbf 22000 N 22.00 kN |
| 1210 | 1.9685 in 50.000 mm |
3.5433 in 90.000 mm |
0.7874 in 20.000 mm |
0.0433 in 1.100 mm |
1820 lbf 8100 N 8.10 kN |
5150 lbf 22800 N 22.80 kN |
| 1211 | 2.1654 in 55.000 mm |
3.9370 in 100.000 mm |
0.8268 in 21.000 mm |
0.0591 in 1.500 mm |
2250 lbf 10000 N 10.00 kN |
6050 lbf 26900 N 26.90 kN |
| 1212 | 2.3622 in 60.000 mm |
4.3307 in 110.000 mm |
0.8661 in 22.000 mm |
0.0591 in 1.500 mm |
2590 lbf 11500 N 11.50 kN |
6850 lbf 30500 N 30.50 kN |
| 1213 | 2.5591 in 65.000 mm |
4.7244 in 120.000 mm |
0.9055 in 23.000 mm |
0.0591 in 1.500 mm |
2810 lbf 12500 N 12.50 kN |
6950 lbf 31000 N 31.00 kN |
| 1214 | 2.7559 in 70.000 mm |
4.9213 in 125.000 mm |
0.9449 in 24.000 mm |
0.0591 in 1.500 mm |
3100 lbf 13800 N 13.80 kN |
7850 lbf 35000 N 35.00 kN |
| 1215 | 2.9528 in 75.000 mm |
5.1181 in 130.000 mm |
0.9843 in 25.000 mm |
0.0591 in 1.500 mm |
3550 lbf 15700 N 15.70 kN |
8750 lbf 39000 N 39.00 kN |
| 1216 | 3.1496 in 80.000 mm |
5.5118 in 140.000 mm |
1.0236 in 26.000 mm |
0.0787 in 2.000 mm |
3800 lbf 17000 N 17.00 kN |
9000 lbf 40000 N 40.00 kN |
| 1217 | 3.3465 in 85.000 mm |
5.9055 in 150.000 mm |
1.1024 in 28.000 mm |
0.0800 in 2.032 mm |
4700 lbf 20800 N 20.80 kN |
11100 lbf 49500 N 49.50 kN |
| 1218 | 3.5433 in 90.000 mm |
6.2992 in 160.000 mm |
1.1811 in 30.000 mm |
0.0787 in 2.000 mm |
5300 lbf 23500 N 23.50 kN |
12900 lbf 57500 N 57.50 kN |
| 1219 | 3.7402 in 95.000 mm |
6.6929 in 170.000 mm |
1.2598 in 32.000 mm |
0.0827 in 2.100 mm |
6100 lbf 27100 N 27.10 kN |
14400 lbf 64000 N 64.00 kN |
| 1220 | 3.9370 in 100.000 mm |
7.0866 in 180.000 mm |
1.3386 in 34.000 mm |
0.0827 in 2.100 mm |
6700 lbf 29700 N 29.70 kN |
15600 lbf 69500 N 69.50 kN |
1. Design features and characteristics
The outer ring raceway of self-aligning ball bearings forms a spherical surface whose center is common to the bearing center. The inner ring of the bearing has two raceways.
The balls, cage, and inner ring of these bearings are capable of shifting in order to compensate for a certain degree of misalignment with the outer rings. As a result, the bearing is able to align itself and compensate for shaft / housing finishing unevenness, bearing fitting error, and other sources of misalignment as shown in Fig. 1.
Since axial load capacity is limited, self- aligning ball bearing are not suitable for applications with heavy axial loads.
It is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications.
2. Standard cage type
All bearing series are equipped with a pressed cage, except 2321S and 2322S, which are equipped with a machined cage.
Self-Aligning Ball Bearings
It is recommended to use an adapter on a self-aligning ball bearing with a tapered bore inner diameter for ease of installation and disassembly. These bearings and adapters are often used on drive shaft applications.
Table 1 Standard cage types of spherical ball bearings
3. Ball protrusion
Bearings with part numbers listed in Table 2 below have balls which protrude slightly from the bearing face as illustrated in Fig. 2. The total width dimensions are shown in Table 2.
4. Allowable misalignment angle
The allowable misalignment angle can be determined by the following function. This degree of allowable misalignment may be limited by the design of mating components around the bearing.
Normal load ....................... 1/15
5. Precautions for using self-aligning ball bearings
Self-aligning ball bearings are unable to support large axial loads and therefore axial loading shall be limited.
Please consider using self-aligning roller bearings when a large axial load is to be applied.
