4388
SIAIF 4388
Type

Bearings for new energy vehicles

Model：4388
Thickness(mm)：39.688
Inner diameter d：41.275
Outer diameter D：90.488
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Detailed information

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Constant
  • e0.28
Axis load factor
  • Y 1 2.1
  • Y o 1.2
Bearing code
  • Inner circle4388
  • Outer ring4335
Installation size (mm)
  • d a 57
  • d b 51
  • Da77
  • Db85
  • Inner circler a (Maximum)3.5
  • Outer ringr a (Maximum)3.3
Dimensions
  • d41.275
  • D90.488
  • T39.688
  • B40.386
  • C33.338
  • Inner circler (Minimum)3.5
  • Outer ringr (Minimum)3.3
Load rating
  • (N) Cr139000
  • (N) Cor180000
  • {kgf} Cr14200
  • {kgf} Cor18400
Limit speed(rpm)
  • Grease lubrication4300
  • Oil lubrication5600
Action point position(mm)
  • a24.6
weight(kg)(Refer to)
  • Inner circle0.789
  • Outer ring0.459

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