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Hot tags:GQZ precious-quality 7328dt,7328df,7328db,7328b 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

7300 Series bearing

Dimension and Parameters
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7300 Series 7300 Series
7328DT,7328DF,7328DB,7328B bearing
  • Bearing Numbers
  • Single row
    7328B
  • DB
    7328DB
  • DF
    7328DF
  • DT
    7328DT
  • Principal dimensions(mm)
  • d
    140
  • D
    300
  • B
    62
  • r(min)
    4
  • r1(min)
    1.5
  • Basic load ratings(N)
  • Cr
    275000
  • Cor
    310000
  • Basic load ratings(kgf)
  • Cr
    28100
  • Cor
    31500
  • Value
  • fo
    14.8
  • Limiting Speed (rpm)
  • Grease
    1700
  • Oil
    2400
  • Distance of action point(mm)
  • a
    123.3
  • Abutment and fillet dimensions
  • da(min)
    158
  • Da(max)
    282
  • ra(max)
    3
  • Weight
  • (kg)
    21.6
  • Basic load ratings(duplex bearing) (N)
  • Cr
    445000
  • Cor
    615000
  • Basic load ratings(duplex bearing) (kgf)
  • Cr
    45500
  • Cor
    63000
  • Limiting Speed(duplex bearing) (rpm)
  • Grease
    1400
  • Oil
    1900
  • Distance of action point (duplex bearing)(a0)
  • back-to-back arrangement
    246.6
  • face-to-face arrangement
    122.6
  • Installation dimensions(duplex bearing)
  • db(min)
    -
  • Db(max)
    291
  • rb(max)
    1.5