31300 Series

31318J2

  • 31300 Series
  • 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.

Tapered toller bearing have four types :

1.Single row tapered roller bearing

2.Matched tapered roller bearing

3.Double-row tapered roller bearing 

4.Four-row tapered roller bearing 


Dimension and Parameters

Designation :31318J2
Principal dimensions(mm)
d1 :90
D :190
B :46,5
Basic load ratings(KN)
dyc(Cr) :264
stc(Cor) :315
Pu :36,5
Speed ratings(rpm)
Speed Ratings :2400
Limiting Speed :3400
Weight(Kg) :5,90
ISO335 
Dimensions (ABMA) :7GB
Dimensions (mm)
d :90
d1~ :138
B :43
C :30
r1,2(min) :4
r3,4(min) :3
a :57
Abutment and fillet dimensions (mm)
da(max) :109
db(min) :105
Da(min) :151
Da(max) :176
Db(min) :179
Ca(min) :5
Cb(min) :16,5
ra(max) :3
rb(max) :2,5
Value
e :0,83
Y :0,72
Yo :0,4
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