Item # | d | D | B | r | Static Load Rating | Dynamic Load Rating |
1301 | 0.4724 in 12.000 mm |
1.4567 in 37.000 mm |
0.4724 in 12.000 mm |
0.0394 in 1.000 mm |
365 lbf 1620 N 1.62 kN |
1650 lbf 7350 N 7.35 kN |
1302 | 0.5906 in 15.000 mm |
1.6535 in 42.000 mm |
0.5118 in 13.000 mm |
0.0394 in 1.000 mm |
515 lbf 2290 N 2.29 kN |
2180 lbf 9700 N 9.70 kN |
1303 | 0.6693 in 17.000 mm |
1.8504 in 47.000 mm |
0.5512 in 14.000 mm |
0.0394 in 1.000 mm |
720 lbf 3200 N 3.20 kN |
2860 lbf 12700 N 12.70 kN |
1304 | 0.7874 in 20.000 mm |
2.0472 in 52.000 mm |
0.5906 in 15.000 mm |
0.0433 in 1.100 mm |
755 lbf 3350 N 3.35 kN |
2830 lbf 12600 N 12.60 kN |
1305 | 0.9843 in 25.000 mm |
2.4409 in 62.000 mm |
0.6693 in 17.000 mm |
0.0433 in 1.100 mm |
1120 lbf 5000 N 5.00 kN |
4100 lbf 18200 N 18.20 kN |
1306 | 1.1811 in 30.000 mm |
2.8346 in 72.000 mm |
0.7480 in 19.000 mm |
0.0433 in 1.100 mm |
1420 lbf 6300 N 6.30 kN |
4800 lbf 21400 N 21.40 kN |
1307 | 1.3780 in 35.000 mm |
3.1496 in 80.000 mm |
0.8268 in 21.000 mm |
0.0591 in 1.500 mm |
1760 lbf 7850 N 7.85 kN |
5700 lbf 25300 N 25.30 kN |
1308 | 1.5748 in 40.000 mm |
3.5433 in 90.000 mm |
0.9055 in 23.000 mm |
0.0591 in 1.500 mm |
2180 lbf 9700 N 9.70 kN |
6700 lbf 29800 N 29.80 kN |
1309 | 1.7717 in 45.000 mm |
3.9370 in 100.000 mm |
0.9843 in 25.000 mm |
0.0591 in 1.500 mm |
2860 lbf 12700 N 12.70 kN |
8650 lbf 38500 N 38.50 kN |
1310 | 1.9685 in 50.000 mm |
4.3307 in 110.000 mm |
1.0630 in 27.000 mm |
0.0787 in 2.000 mm |
3150 lbf 14100 N 14.10 kN |
9800 lbf 43500 N 43.50 kN |
1311 | 2.1654 in 55.000 mm |
4.7244 in 120.000 mm |
1.1417 in 29.000 mm |
0.0787 in 2.000 mm |
4000 lbf 17900 N 17.90 kN |
11600 lbf 51500 N 51.50 kN |
1312 | 2.3622 in 60.000 mm |
5.1181 in 130.000 mm |
1.2205 in 31.000 mm |
0.0827 in 2.100 mm |
4700 lbf 20800 N 20.80 kN |
12900 lbf 57500 N 57.50 kN |
1313 | 2.5591 in 65.000 mm |
5.5118 in 140.000 mm |
1.2992 in 33.000 mm |
0.0827 in 2.100 mm |
5150 lbf 22900 N 22.90 kN |
14100 lbf 62500 N 62.50 kN |
1314 | 2.7559 in 70.000 mm |
5.9055 in 150.000 mm |
1.3780 in 35.000 mm |
0.0827 in 2.100 mm |
6250 lbf 27700 N 27.70 kN |
16900 lbf 75000 N 75.00 kN |
1315 | 2.9528 in 75.000 mm |
6.2992 in 160.000 mm |
1.4567 in 37.000 mm |
0.0827 in 2.100 mm |
6750 lbf 30000 N 30.00 kN |
18000 lbf 80000 N 80.00 kN |
1316 | 3.1496 in 80.000 mm |
6.6929 in 170.000 mm |
1.5354 in 39.000 mm |
0.0827 in 2.100 mm |
7400 lbf 33000 N 33.00 kN |
20000 lbf 89000 N 89.00 kN |
1317 | 3.3465 in 85.000 mm |
7.0866 in 180.000 mm |
1.6142 in 41.000 mm |
0.1181 in 3.000 mm |
8550 lbf 38000 N 38.00 kN |
22100 lbf 98500 N 98.50 kN |
1318 | 3.5433 in 90.000 mm |
7.4803 in 190.000 mm |
1.6929 in 43.000 mm |
0.1181 in 3.000 mm |
10000 lbf 44500 N 44.50 kN |
26300 lbf 117000 N 117.00 kN |
1319 | 3.7402 in 95.000 mm |
7.8740 in 200.000 mm |
1.7717 in 45.000 mm |
0.1181 in 3.000 mm |
11500 lbf 51000 N 51.00 kN |
29000 lbf 129000 N 129.00 kN |
1320 | 3.9370 in 100.000 mm |
8.4646 in 215.000 mm |
1.8504 in 47.000 mm |
0.1181 in 3.000 mm |
12900 lbf 57500 N 57.50 kN |
31500 lbf 140000 N 140.00 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.