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30300 Series

30311J2/Q

A tapered roller bearing is a type of bearing designed to handle both radial and axial loads. It consists of an inner ring, an outer ring, and tapered rollers arranged between them. The rollers are shaped like cones, which allows the bearing to support high loads while reducing friction. Tapered roller bearings are commonly used in applications such as automotive wheels, gearboxes, and industrial machinery, where both radial and axial forces are present. These bearings offer durability, high load capacity, and efficiency in a wide range of settings.

  • 30300 Series
  • 30300 Series

Dimension and Parameters

Designation :30311J2/Q
Principal dimensions(mm)
d1 :55
D :120
B :31,5
Basic load ratings(KN)
dyc(Cr) :166
stc(Cor) :163
Pu :19,3
Speed ratings(rpm)
Speed Ratings :4800
Limiting Speed :5600
Weight(Kg) :1,55
ISO335 
Dimensions (ABMA) :2FB
Dimensions (mm)
d :55
d1~ :84
B :29
C :25
r1,2(min) :2,5
r3,4(min) :2
a :24
Abutment and fillet dimensions (mm)
da(max) :71
db(min) :65
Da(min) :104
Da(max) :112
Db(min) :111
Ca(min) :4
Cb(min) :6,5
ra(max) :2
rb(max) :2
Value
e :0,35
Y :1,7
Yo :0,9
QUALITY ASSURANCE
QUALITY ASSURANCE
REASONABLE PRICE
REASONABLE PRICE
GOOD SERVICE
GOOD SERVICE
FAST DELIVERY
FAST DELIVERY

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