Self Aligning Ball Bearings
Product Specification

 Self-aligning ball bearings have two rows of balls and a common sphered raceway in the outer ring. The bearings are insensitive to angular misalignment of the shaft relative to the housing.

 
Self-aligning ball bearings generate less friction than any other type of rolling bearing, which enables them to run cooler even at high speeds. 
 
Self-aligning ball bearings are double row, self-retaining units comprising solid outer rings with a concave raceway, inner rings with a cylindrical or tapered bore and ball and cage assemblies. The bearings are available in open and sealed versions.
Bearing No. d D T B C R Mass
2203 17 40 16 - - 0.6 0.088
2204 20 47 18 - - 1 0.14
2205 25 52 18 - - 1 0.16
2206 30 62 20 - - 1 0.26
2207 35 72 23 - - 1.1 0.4
2208 40 80 23 - - 1.1 0.51
2209 45 85 23 - - 1.1 0.55
2210 50 90 23 - - 1.1 0.6
2211 55 100 25 - - 1.5 0.81
2212 60 110 28 - - 1.5 1.1
2213 65 120 31 - - 1.5 1.45
2304 20 52 21 - - 1.1 0.21
2305 25 62 24 - - 1.1 0.34
2306 30 72 27 - - 1.1 0.5
2307 35 80 31 - - 1.5 0.68
2308 40 90 33 - - 1.5 0.93
2309 45 100 36 - - 1.5 1.25
2310 50 110 40 - - 2 1.65
2311 55 120 43 - - 2 2.1
2312 60 130 46 - - 2.1 2.6