7321DB
Type

Machine tool spindle bearings

Model:7321DB
Thickness(mm):49
Inner diameter d:105
Outer diameter D:225

Detailed information

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Dimensions
  • d105
  • D225
  • B49
  • r Minimum3
  • r 1 (Minimum)1.1
Load rating (N)
  • Cr208000
  • Cor193000
Load rating {kgf}
  • Cr21200
  • Cor19700
Limit speed(1)(rpm)
  • Grease lubrication2600
  • Oil lubrication3600
Action point position (mm)
  • a72.1
Installation size (mm)
  • d a (Minimum)119
  • Da (Maximum)211
  • r a (Maximum)2.5
Bearing code(2)
  • Single column7321A
  • DB7321DB
  • DF7321DF
  • DT7321DT
Rated load (paired double type) (N)
  • Cr335000
  • Cor385000
Rated load (paired double type) {kgf}
  • Cr34500
  • Cor39500
Paired Duplex Limit speed(1) (rpm)
  • Grease lubrication2200
  • Oil lubrication2800
Paired Duplex Action point distance a0(mm)
  • Back-to-back configuration144.3
  • Face-to-face configuration46.3
Paired Duplex Installation size(mm)
  • db(3) (Minimum)-
  • Db (Maximum)218
  • rb(3) (Maximum)1
Coefficientfo
  • Coefficientfo14.2
weight(kg)
  • (Refer to)9.34

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