7220B
Type

Machine tool spindle bearings

Model:7220B
Thickness(mm):34
Inner diameter d:100
Outer diameter D:180

Detailed information

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Dimensions
  • d100
  • D180
  • B34
  • r Minimum2.1
  • r 1 (Minimum)1.1
Load rating (N)
  • Cr130000
  • Cor114000
Load rating {kgf}
  • Cr13300
  • Cor11700
Limit speed(1)(rpm)
  • Grease lubrication2800
  • Oil lubrication3800
Action point position (mm)
  • a75.7
Installation size (mm)
  • d a (Minimum)112
  • Da (Maximum)168
  • r a (Maximum)2
Bearing code(2)
  • Single column7220B
  • DB7220DB
  • DF7220DF
  • DT7220DT
Rated load (paired double type) (N)
  • Cr212000
  • Cor229000
Rated load (paired double type) {kgf}
  • Cr21600
  • Cor23300
Paired Duplex Limit speed(1) (rpm)
  • Grease lubrication2200
  • Oil lubrication3000
Paired Duplex Action point distance a0(mm)
  • Back-to-back configuration151.5
  • Face-to-face configuration83.5
Paired Duplex Installation size(mm)
  • db(3) (Minimum)107
  • Db (Maximum)173
  • rb(3) (Maximum)1
Coefficientfo
  • Coefficientfo15.4
weight(kg)
  • (Refer to)3.29

List of Similar Bearing Models