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Hot tags:GQZ precious-quality 7321dt,7321df,7321db,7321b bearing with reasonable price for customers all over the world and first-class service and unrivaled products.

GQZ high quality 7300 Series Single Row Angular Contact Ball Bearings

Angular contact ball bearings have inner and outer ring raceways that are displaced relative to each other in the direction of the bearing axis. This means that these bearings are designed to accommodate combined loads, i.e. simultaneously acting radial and axial loads.

The axial load carrying capacity of angular contact ball bearings increases as the contact angle increases. The contact angle is defined as the angle between the line joining the points of contact of the ball and the raceways in the radial plane, along which the combined load is transmitted from one raceway to another, and a line perpendicular to the bearing axis

The most commonly used designs are:

single row angular contact ball bearings 

double row angular contact ball bearings 

four-point contact ball bearings 


7300 Series
  • 7300 Series
  • 7300 Series

Rolamento série 7300

Dimension and Parameters
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7300 Series 7300 Series
7321DT,7321DF,7321DB,7321B bearing
  • Bearing Numbers
  • Single row
    7321B
  • DB
    7321DB
  • DF
    7321DF
  • DT
    7321DT
  • Dimensões principais (mm)
  • d
    105
  • D
    225
  • B
    49
  • r (min)
    3
  • r1(min)
    1.1
  • Basic load ratings(N)
  • Cr
    191000
  • Cor
    177000
  • Classificações básicas de carga (kgf)
  • Cr
    19400
  • Cor
    18100
  • Valor
  • fo
    14.5
  • Velocidade limite (rpm)
  • Graxa
    2400
  • Óleo
    3200
  • Distance of action point(mm)
  • uma
    93.7
  • Abutment and fillet dimensions
  • da (min)
    119
  • Da (max)
    211
  • ra (max)
    2.5
  • Peso
  • (kg)
    9.43
  • Basic load ratings(duplex bearing) (N)
  • Cr
    310000
  • Cor
    355000
  • Basic load ratings(duplex bearing) (kgf)
  • Cr
    31500
  • Cor
    36000
  • Limiting Speed(duplex bearing) (rpm)
  • Graxa
    1900
  • Óleo
    2600
  • Distance of action point (duplex bearing)(a0)
  • back-to-back arrangement
    187.4
  • face-to-face arrangement
    89.4
  • Installation dimensions(duplex bearing)
  • db (min)
    1-1 / 16
  • Db(max)
    218
  • rb (max)
    1