NNU4921
SIAIF NNU4921
Type

Short cylindrical roller bearing

Model：NNU4921
Thickness(mm)：40
Inner diameter d：105
Outer diameter D：145
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Detailed information

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Bearing code
  • Cylindrical holeNNU4921
  • Conical hole(1)NNU4921K
Dimensions(mm)
  • d105
  • D145
  • B40
  • r (Minimum)1.1
  • Fw117
  • Ew-
Installation size(mm)
  • d a (2) (Minimum)111.5
  • d a (2) (Maximum)116
  • d 1a (Minimum)113
  • d c (Minimum)120
  • Da (Maximum)138.5
  • Da (Minimum)-
  • r a (Maximum)1
weight(kg)
  • (Refer to)1.99
Load rating(N)
  • Cr161000
  • Cor315000
Limit speed(rpm)
  • Grease lubrication3800
  • Oil lubrication4800

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