7211B
Type

Machine tool spindle bearings

Model:7211B
Thickness(mm):21
Inner diameter d:55
Outer diameter D:100

Detailed information

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Dimensions
  • d55
  • D100
  • B21
  • r Minimum1.5
  • r 1 (Minimum)1
Load rating (N)
  • Cr46500
  • Cor36000
Load rating {kgf}
  • Cr4700
  • Cor3700
Limit speed(1)(rpm)
  • Grease lubrication5300
  • Oil lubrication7100
Action point position (mm)
  • a43.0
Installation size (mm)
  • d a (Minimum)64
  • Da (Maximum)91
  • r a (Maximum)1.5
Bearing code(2)
  • Single column7211B
  • DB7211DB
  • DF7211DF
  • DT7211DT
Rated load (paired double type) (N)
  • Cr75000
  • Cor72000
Rated load (paired double type) {kgf}
  • Cr7650
  • Cor7350
Paired Duplex Limit speed(1) (rpm)
  • Grease lubrication4000
  • Oil lubrication5600
Paired Duplex Action point distance a0(mm)
  • Back-to-back configuration86.0
  • Face-to-face configuration44.0
Paired Duplex Installation size(mm)
  • d b (3) (Minimum)61
  • Db (Maximum)94
  • r b (3) (Maximum)1
Coefficientfo
  • Coefficientfo15.4
weight(kg)
  • (Refer to)0.627

List of Similar Bearing Models