• 30300 Series
  • 30300 Series
  • 30300 Series

Описание



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 :30307J2/Q
Principal dimensions(mm)
d1 :35
D :80
B :22,75
Basic load ratings(KN)
dyc(Cr) :83
stc(Cor) :73,5
Pu :8,3
Speed ratings(rpm)
Speed Ratings :7500
Limiting Speed :9000
Weight(Kg) :0,52
ISO335 
Dimensions (ABMA) :2FB
Dimensions (mm)
d :35
d1~ :54,5
B :21
C :18
r1,2(min) :2
r3,4(min) :1,5
a :16
Abutment and fillet dimensions (mm)
da(max) :46
db(min) :44
Da(min) :70
Da(max) :71
Db(min) :74
Ca(min) :3
Cb(min) :4,5
ra(max) :2
rb(max) :1,5
Value
e :0,31
Y :1,9
Yo :1,1
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