31300 Series

31309J2/QCL7C

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  • 31300 Series
  • 31300 Series

Description

Tapered roller bearings feature a cup and cone assembly. The cup is comprised of the outer ring and the cone assembly consists of inner ring, rollers, and cage. This bearing construction accommodates combined loads and provides low friction during operation. By adjusting one single row tapered roller bearing against a second tapered roller bearing and applying a preload, a rigid bearing application can be achieved.

Dimension and Parameters

Designation :31309J2/QCL7C
Principal dimensions（mm）
d1 :45
D :100
B :27,25
Basic load ratings（KN）
dyc(Cr) :106
stc(Cor) :102
Pu :12,5
Speed ratings（rpm）
Speed Ratings :5000
Limiting Speed :6700
Weight(Kg) :0,95
ISO335 
Dimensions (ABMA) :7FB
Dimensions （mm）
d :45
d1～ :74,7
B :25
C :18
r1,2(min) :2
r3,4(min) :1,5
a :31
Abutment and fillet dimensions （mm）
da(max) :57
db(min) :53
Da(min) :79
Da(max) :91
Db(min) :95
Ca(min) :4
Cb(min) :9
ra(max) :2
rb(max) :1,5
Value
e :0,83
Y :0,72
Yo :0,4
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