The self-aligning ball bearing has two rows of balls and a common concave sphered raceway in the outer ring. The bearing is consequently self-aligning and insensitive to angular misalignments of the shaft relative to the housing. It is particularly suitable for applications where considerable shaft deflections or misalignment are to be expected. Additionally, the self-aligning ball bearing has the lowest friction of all rolling bearings, which enables it to run cooler even at high speeds.
We produces self-aligning ball bearings to several designs. These are
– open bearings of the basic design
– sealed bearings
– open bearings with an extended inner ring

This type of ball bearing is recommended when alignment of the shaft and housing is difficult and the shaft may flex. The outer ring has a spherical raceway and its center of curvature coincides with that of the bearing; therefore, the axis of the inner ring, balls and cage can deflect to some extent around the bearing center. Pressed steel cages are usually used. Since the contact angle is small, the axial load capacity is low. The permissible dynamic misalignment is approximately 0.07 to 0.12 radian (4 to 7 degrees) under normal loads.
New Items Old Items NSK NTN FAG SKF Size(dxDxB) Weight
2211 1511 2211 2211S 2211 2211E 55x100x25 0.81
2212 1512 2212 2212S 2212 2212E 60x110x28 1.15
2213 1513 2213 2213S 2213 2213E 65x120x31 1.5
2214 1514 2214 2214S 2214 2214 70x125x31 1.63
2215 1515 2215 2215S 2215 2215 75x130x31 1.71
2216 1516 2216 2216S 2216 2216E 80x140x33 2.19
2217 1517 2217 2217S 2217 2217 85x150x36 2.53
2218 1518 2218 2218S 2218 2218 90x160x40 3.4
1300 1300 1300 1300S 1300 10x35x11 0.06
1301 1301 1301 1301S 1301 1301E 12x37x12 0.07
1302 1302 1302 1302S 1302 1302E 15x42x3 0.099
1303 1303 1303 1303S 1303 1303E 17x47x14 0.138
1304 1304 1304 1304S 1304 1304E 20x52x15 0.174
1305 1305 1305 1305S 1305 1305E 25x62x17 0.258
1306 1306 1306 1306S 1306 1306E 30x72x19 0.39
1307 1307 1307 1307S 1307 1307E 35x80x21 0.54
1308 1308 1308 1308S 1308 1308E 40x90x23 0.71
1309 1309 1309 1309S 1309 1309E 45x100x25 0.96
1310 1310 1310 1310S 1310 1310E 50x110x27 1.21
1311 1311 1311 1311S 1311 1311E 55x120x29 1.58
1312 1312 1312 1312S 1312 1312E 60x130x31 1.96
1313 1313 1313 1313S 1313 1313E 65x140x33 2.39
1314 1314 1314 1314S 1314 1314 70x150x35 2.98
1315 1315 1315 1315S 1315 1315 75x160x37 3.55
1316 1316 1316 1316S 1316 1316 80x170x39 4.19
1317 1317 1317 1317S 1317 1317 85x180x41 4.95
1318 1318 1318 1318S 1318 1318 90x190x43 5.99
2303 1603 2303 2303S 2303 2303 17x47x19 0.219
2304 1604 2304 2304S 2304 2304 20x52x21 0.219
2305 1605 2305 2305S 2305 2305 25x62x24 0.355
2306 1606 2306 2306S 2306 2306 30x72x27 0.501
2307 1607 2307 2307S 2307 2307E 35x80x31 0.675
2308 1608 2308 2308S 2308 2308E 40x90x33 0.959
2309 1609 2309 2309S 2309 2309E 45x100x36 1.25
2309 45x100x36 0
2310 1610 2310 2310S 2310 2310 50x110x40 1.66
2311 1611 2311 2311S 2311 2311 55x120x43 2.09
2312 1612 2312 2312S 2312 2312 60x130x46 2.66
2313 1613 2313 2313S 2313 2313 65x140x48 3.22
2314 1614 2314 2314S 2314 2314 70x150x51 3.92
2315 1615 2315 2315S 2315 2315 75x160x55 4.71
2316 1616 2316 2316S 2316 2316 80x170x58 5.7
2317 1617 2317 2317S 2317 2317 85x180x60 6.73
2318 1618 2318 2318S 2318 2318 90x190x64 7.93
2200 1500 2200 2200S 2200 2200E 10X30X14
2201 1501 2201 2201S 2201 2201E 12X32X14
2300 1600 2300 2300S 10X35X17
2301 1601 2301 2301S 2301 12X37X17
2302 1602 2302 2302S 2302 2302 15X42X17
1200ATN 10×30×9