7917DB
Type

Machine tool spindle bearings

Model:7917DB
Thickness(mm):18
Inner diameter d:85
Outer diameter D:120

Detailed information

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Dimensions
  • d85
  • D120
  • B18
  • r Minimum1.1
  • r 1 (Minimum)0.6
Load rating (N)
  • Cr36500
  • Cor38500
Load rating {kgf}
  • Cr3750
  • Cor3900
Limit speed(1)(rpm)
  • Grease lubrication6700
  • Oil lubrication9000
Action point position (mm)
  • a32.9
Installation size (mm)
  • d a (Minimum)92
  • Da (Maximum)113
  • r a (Maximum)1
Bearing code(2)
  • Single column7917A5
  • DB7917DB
  • DF7917DF
  • DT7917DT
Rated load (paired double type) (N)
  • Cr59500
  • Cor77000
Rated load (paired double type) {kgf}
  • Cr6100
  • Cor7850
Paired Duplex Limit speed(1) (rpm)
  • Grease lubrication5300
  • Oil lubrication7500
Paired Duplex Action point distance a0(mm)
  • Back-to-back configuration65.8
  • Face-to-face configuration29.8
Paired Duplex Installation size(mm)
  • db(3) (Minimum)-
  • Db (Maximum)115
  • rb(3) (Maximum)0.6
Coefficientfo
  • Coefficientfo16.5
weight(kg)
  • (Refer to)0.541

List of Similar Bearing Models