Straight hole open type

The straight hole open type self-aligning ball bearing is the basic universal type of self-aligning ball bearing. It adopts a classic structure of cylindrical straight hole inner ring+open unsealed+double row steel balls+outer ring spherical raceway. The core has the characteristics of self centering, easy installation, and flexible lubrication. It is mainly suitable for light medium load and large coaxiality deviation working conditions. It has no taper, no seal, and no additional locking structure. It is one of the most widely used basic bearings in industrial equipment and is suitable for general light medium load scenarios such as textiles, conveyors, agricultural machinery, and reducers.

Model Basic Dimensions Basic rated dynamic load WeightType
Inner diameter Outer diameter Thickness Dynamic load Static load
[mm] [mm] [mm] (kN) (kN) （kg）
2318 90 190 64 156 57 8.58 Straight hole open type
1219 95 170 32 64 27 3.32 Straight hole open type
2219 95 170 43 84 34 4.33 Straight hole open type
1319 95 200 45 134 50 7.29 Straight hole open type
2319 95 200 67 167 63 10.2 Straight hole open type
1220 100 180 34 70 29.5 3.99 Straight hole open type
2220 100 180 46 98 40 5.21 Straight hole open type
1320 100 215 47 145 57 9.06 Straight hole open type
2320 100 215 73 196 78 12.9 Straight hole open type
1221 105 190 36 75 32 4.75 Straight hole open type
2221 105 190 50 109 45 5.73 Straight hole open type
1321 105 225 49 158 64 10.3 Straight hole open type
2321 105 225 77 200 87 14.5 Straight hole open type
1222 110 200 38 89 38 5.57 Straight hole open type
2222 110 200 53 126 51 7.45 Straight hole open type
1322 110 240 50 165 71 12.3 Straight hole open type
2322 110 240 80 221 94 18.1 Straight hole open type
1224 120 215 42 121 52 7.13 Straight hole open type
1324 120 260 55 181 82 17.6 Straight hole open type
1226 130 230 46 125 55 8.67 Straight hole open type