7308DF
Type

Machine tool spindle bearings

Model:7308DF
Thickness(mm):23
Inner diameter d:40
Outer diameter D:90

Detailed information

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Dimensions
  • d40
  • D90
  • B23
  • r Minimum1.5
  • r 1 (Minimum)1
Load rating (N)
  • Cr49000
  • Cor33000
Load rating {kgf}
  • Cr5000
  • Cor3350
Limit speed(1)(rpm)
  • Grease lubrication7100
  • Oil lubrication9000
Action point position (mm)
  • a30.3
Installation size (mm)
  • d a (Minimum)49
  • Da (Maximum)81
  • r a (Maximum)1.5
Bearing code(2)
  • Single column7308A
  • DB7308DB
  • DF7308DF
  • DT7308DT
Rated load (paired double type) (N)
  • Cr79500
  • Cor66000
Rated load (paired double type) {kgf}
  • Cr8100
  • Cor6700
Paired Duplex Limit speed(1) (rpm)
  • Grease lubrication5600
  • Oil lubrication7500
Paired Duplex Action point distance a0(mm)
  • Back-to-back configuration60.5
  • Face-to-face configuration14.5
Paired Duplex Installation size(mm)
  • d b (3) (Minimum)46
  • Db (Maximum)84
  • r b (3) (Maximum)1
Coefficientfo
  • Coefficientfo14.0
weight(kg)
  • (Refer to)0.633

List of Similar Bearing Models