72212/2/72487/2/Q
SIAIF 72212/2/72487/2/Q
Type

Tapered roller bearing

Model：72212/2/72487/2/Q
Thickness(mm)：36.512
Inner diameter d：53.975
Outer diameter D：123.825
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Detailed information

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Basic size mm
  • d53.975
  • D123.825
  • T36.512
Basic load rating kN
  • DynamicsC147
  • Static Co180
RatedSpeed r/min
  • Reference speed3800
  • Limit speed5600
Size mm
  • d53.975
  • d 1 ～88.8
  • B32.791
  • C25.4
  • r 1,2 Minimum3.5
  • r 3,4 Minimum3.3
  • a36
Shoulder and chamfer dimensions mm
  • d a Maximum68
  • d b Minimum65.5
  • Da Minimum93
  • Da Maximum113
  • Db Minimum114
  • Ca Minimum5
  • Cb Minimum11
  • r a Maximum3
  • r b Maximum3
Calculate coefficient
  • e0.75
  • Y0.8
  • Yo0.45
Fatigue load limit Pu
  • Fatigue load limit Pu21.6
Quality
  • Quality2.05
Model
  • Model72212/2/72487/2/Q
Series
  • Series72000

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