• 30300 Series
  • 30300 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 :30312J2/Q
Principal dimensions(mm)
d1 :60
D :130
B :33,5
Basic load ratings(KN)
dyc(Cr) :168
stc(Cor) :196
Pu :23,6
Speed ratings(rpm)
Speed Ratings :4000
Limiting Speed :5300
Weight(Kg) :1,95
ISO335 
Dimensions (ABMA) :2FB
Dimensions (mm)
d :60
d1~ :91,9
B :31
C :26
r1,2(min) :3
r3,4(min) :2,5
a :26
Abutment and fillet dimensions (mm)
da(max) :77
db(min) :72
Da(min) :112
Da(max) :118
Db(min) :120
Ca(min) :5
Cb(min) :7,5
ra(max) :2,5
rb(max) :2
Value
e :0,35
Y :1,7
Yo :0,9