3780/3720/Q
SIAIF 3780/3720/Q
Type

Tapered roller bearing

Model：3780/3720/Q
Thickness(mm)：30.162
Inner diameter d：50.8
Outer diameter D：93.264
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Detailed information

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Basic size mm
  • d50.8
  • D93.264
  • T30.162
Basic load rating kN
  • DynamicsC110
  • Static Co146
RatedSpeed r/min
  • Reference speed5300
  • Limit speed7500
Size mm
  • d50.8
  • d 1 ～71.2
  • B30.302
  • C23.812
  • r 1,2 Minimum3.5
  • r 3,4 Minimum3.3
  • a22
Shoulder and chamfer dimensions mm
  • d a Maximum60
  • d b Minimum62
  • Da Minimum80
  • Da Maximum84.5
  • Db Minimum87
  • Ca Minimum4
  • Cb Minimum6
  • r a Maximum3
  • r b Maximum3
Calculate coefficient
  • e0.33
  • Y1.8
  • Yo1
Fatigue load limit Pu
  • Fatigue load limit Pu17
Quality
  • Quality0.85
Model
  • Model3780/3720/Q
Series
  • Series3700

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