NTN Self-Aligning Ball Bearing - Straight Bore, 1220

NTN Self-Aligning Ball Bearing - Straight Bore, 1220

SKU: NTN 1220

$125.15

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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.

Recommended for the NTN Self-Aligning Ball Bearing - Straight Bore, 1220

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