Double row angular contact ball bearings 305272 D
Bearing number : 305272 D
Size (mm) : 309.5x220x76 Brand : SKF d (mm) : 309,5 D (mm) : 220 B (mm) : 76 Bearing dimensions and specification in brand catalogue : d - 220 mm D - 309.5 mm B - 76 mm d1 - - 252.5 mm D1 - - 286 mm b - 22 mm K - 7.5 mm r1,2 - min. - 2.1 mm a - 146 mm da - min. - 225 mm Da - max. - 284 mm ra - max. - 2.1 mm Basic dynamic load rating - C - 312 kN Basic static load rating - C0 - 520 kN Fatigue load limit - Pu - 13.4 kN Reference speed - 1700 r/min Limiting speed - 2000 r/min Calculation factor - kr - 0.095 Calculation factor - e - 0.86 Calculation factor - X - 0.62 Calculation factor - Y0 - 0.63 Calculation factor - Y1 - 0.73 Calculation factor - Y2 - 1.17 Mass bearing - 17.65 kg
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