7238B
Type

Machine tool spindle bearings

Model:7238B
Thickness(mm):55
Inner diameter d:190
Outer diameter D:340

Detailed information

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weight (kg)
  • (Refer to)22.5
Dimensions
  • d190
  • D340
  • B55
  • r Minimum4
  • r 1 (Minimum)1.5
Load rating (N)
  • Cr284000
  • Cor375000
Load rating {kgf}
  • Cr28900
  • Cor38000
Limit speed(1)(rpm)
  • Grease lubrication1400
  • Oil lubrication2000
Action point position (mm)
  • a138.7
Installation size (mm)
  • d a (Minimum)208
  • Da (Maximum)322
  • r a (Maximum)3
Bearing code(2)
  • Single column7238B
  • DB7238DB
  • DF7238DF
  • DT7238DT
Rated load (paired double type) (N)
  • Cr460000
  • Cor750000
Rated load (paired double type) {kgf}
  • Cr47000
  • Cor76000
Paired Duplex Limit speed(1) (rpm)
  • Grease lubrication1100
  • Oil lubrication1600
Paired Duplex Action point distance a0(mm)
  • Back-to-back configuration277.3
  • Face-to-face configuration167.3
Paired Duplex Installation size(mm)
  • d b (3) (Minimum)-
  • Db (Maximum)331
  • r b (3) (Maximum)1.5
Coefficientfo
  • Coefficientfo15.9

List of Similar Bearing Models