31300 Series

31300 Series

31311J2/QCL7C

Description

The inner and outer raceways and rollers of tapered roller bearings can bear radial and thrust loads at the same time. Their axial load carrying capacity is directly related to the contact angle of the roller and the raceway shaft.

They are available in single-row, double-row and four-row designs. The parts of tapered roller bearings are usually sold separately in cup and cone shapes. The cone contains the drum assembly and the inner ring, while the cup contains the outer ring. The complete assembly unit contains both cup and cone. As a separable bearing, different designs and sizes can be provided to suit various applications.


Dimension and Parameters

31300 Series 31300 Series
Bearing No. :31311J2/QCL7C
Dimensions (mm)
d1 :55
D :120
B :31,5
Basic Load Rating(KN)
Cr :140
Cor :137
Pu :16,6
Rotation Speed(rpm)
Speed Grade :4300
Speed Limit :5600
Weight (Kg) :1,55
ISO335 
Dimensions (ABMA) :7FB
Dimensions (mm)
d :55
d1~ :88,4
B :29
C :21
r1,2(min) :2,5
r3,4(min) :2
a :37
Installation Dimensions(mm)
da(max) :68
db(min) :65
Da(min) :94
Da(max) :112
Db(min) :113
Ca(min) :4
Cb(min) :10,5
ra(max) :2
rb(max) :2
Value
e :0,83
Y :0,72
Yo :0,4