31307J2/Q

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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 :31307J2/Q

Principal dimensions（mm）

d1 :35

D :80

B :22,75

Basic load ratings（KN）

dyc(Cr) :71

stc(Cor) :67

Pu :7,8

Speed ratings（rpm）

Speed Ratings :6300

Limiting Speed :8500

Weight(Kg) :0,52

ISO335

Dimensions (ABMA) :7FB

Dimensions （mm）

d :35

d1～ :59,6

B :21

C :15

r1,2(min) :2

r3,4(min) :1,5

a :25

Abutment and fillet dimensions （mm）

da(max) :45

db(min) :44

Da(min) :62

Da(max) :71

Db(min) :76

Ca(min) :3

Cb(min) :7,5

ra(max) :2

rb(max) :1,5

Value

e :0,83

Y :0,72

Yo :0,4

31307J2/Q

Description

Dimension and Parameters

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