7311DB
Type

Machine tool spindle bearings

Model:7311DB
Thickness(mm):29
Inner diameter d:55
Outer diameter D:120

Detailed information

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Dimensions
  • d55
  • D120
  • B29
  • r Minimum2
  • r 1 (Minimum)1
Load rating (N)
  • Cr86000
  • Cor61500
Load rating {kgf}
  • Cr8750
  • Cor6250
Limit speed(1)(rpm)
  • Grease lubrication5000
  • Oil lubrication6700
Action point position (mm)
  • a39.8
Installation size (mm)
  • d a (Minimum)65
  • Da (Maximum)110
  • r a (Maximum)2
Bearing code(2)
  • Single column7311A
  • DB7311DB
  • DF7311DF
  • DT7311DT
Rated load (paired double type) (N)
  • Cr139000
  • Cor123000
Rated load (paired double type) {kgf}
  • Cr14200
  • Cor12500
Paired Duplex Limit speed(1) (rpm)
  • Grease lubrication4000
  • Oil lubrication5600
Paired Duplex Action point distance a0(mm)
  • Back-to-back configuration79.5
  • Face-to-face configuration21.5
Paired Duplex Installation size(mm)
  • d b (3) (Minimum)61
  • Db (Maximum)114
  • r b (3) (Maximum)1
Coefficientfo
  • Coefficientfo13.9
weight(kg)
  • (Refer to)1.41

List of Similar Bearing Models