7312DB
Type

Machine tool spindle bearings

Model:7312DB
Thickness(mm):31
Inner diameter d:60
Outer diameter D:130

Detailed information

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Dimensions
  • d60
  • D130
  • B31
  • r Minimum2.1
  • r 1 (Minimum)1.1
Load rating (N)
  • Cr98000
  • Cor71500
Load rating {kgf}
  • Cr10000
  • Cor7250
Limit speed(1)(rpm)
  • Grease lubrication4800
  • Oil lubrication6300
Action point position (mm)
  • a42.9
Installation size (mm)
  • d a (Minimum)72
  • Da (Maximum)118
  • r a (Maximum)2
Bearing code(2)
  • Single column7312A
  • DB7312DB
  • DF7312DF
  • DT7312DT
Rated load (paired double type) (N)
  • Cr159000
  • Cor143000
Rated load (paired double type) {kgf}
  • Cr16200
  • Cor14500
Paired Duplex Limit speed(1) (rpm)
  • Grease lubrication3800
  • Oil lubrication5000
Paired Duplex Action point distance a0(mm)
  • Back-to-back configuration85.9
  • Face-to-face configuration23.9
Paired Duplex Installation size(mm)
  • db(3) (Minimum)67
  • Db (Maximum)123
  • rb(3) (Maximum)1
Coefficientfo
  • Coefficientfo13.9
weight(kg)
  • (Refer to)1.74

List of Similar Bearing Models