30310 Series 2

  • High radial and axial load carrying capacity
  • Accommodate axial loads in one direction
  • Low friction and long service life
  • Separable and interchangeable components
Category:

Description

Single row tapered roller bearing

Single row tapered roller bearings are designed to accommodate combined radial and axial loads and provide low friction during operation. The inner ring, with rollers and cage, can be mounted separately from the outer ring. These separable and interchangeable components facilitate mounting, dismounting and maintenance. By mounting one single row tapered roller bearing against another and applying a preload, a rigid bearing application can be achieved.

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Dimension series
2FB
Dimensions - 30310

Dimensions

d
50 mm
 Bore diameter
D
110 mm
 Outside diameter
T
29.25 mm
 Total width
d1
≈ 77.2 mm
 Shoulder diameter of inner ring
B
27 mm
 Width of inner ring
C
23 mm
 Width of outer ring
r1,2
min. 2.5 mm
 Chamfer dimension of inner ring
r3,4
min. 2 mm
 Chamfer dimension of outer ring
a
22.55 mm
 Distance side face to pressure point
Abutment dimensions - 30310

Abutment dimensions

da
max. 66 mm
 Diameter of shaft abutment
db
min. 61 mm
 Diameter of shaft abutment
Da
min. 95 mm
 Diameter of housing abutment
Da
max. 101 mm
 Diameter of housing abutment
Db
min. 102 mm
 Diameter of housing abutment
Ca
min. 4 mm
 Minimum width of space required in housing on large side face
Cb
min. 6 mm
 Minimum width of space required in housing on small side face
ra
max. 2.5 mm
 Radius of shaft fillet
rb
max. 2 mm
 Radius of housing fillet

Calculation data

SKF performance class
SKF Explorer
Basic dynamic load rating C
154 kN
Basic static load rating C0
140 kN
Fatigue load limit Pu
16.6 kN
Reference speed
5 300 r/min
Limiting speed
6 300 r/min
Limiting value e
0.35
Calculation factor Y
1.7
Calculation factor Y0
0.9

Dimension series
2FB
Dimensions - 30310

Dimensions

d
1.9685 in
 Bore diameter
D
4.3307 in
 Outside diameter
T
1.1516 in
 Total width
d1
≈ 3.0394 in
 Shoulder diameter of inner ring
B
1.063 in
 Width of inner ring
C
0.9055 in
 Width of outer ring
r1,2
min. 0.0984 in
 Chamfer dimension of inner ring
r3,4
min. 0.0787 in
 Chamfer dimension of outer ring
a
0.8878 in
 Distance side face to pressure point
Abutment dimensions - 30310

Abutment dimensions

da
max. 2.5984 in
 Diameter of shaft abutment
db
min. 2.4016 in
 Diameter of shaft abutment
Da
min. 3.7402 in
 Diameter of housing abutment
Da
max. 3.9764 in
 Diameter of housing abutment
Db
min. 4.0157 in
 Diameter of housing abutment
Ca
min. 0.1575 in
 Minimum width of space required in housing on large side face
Cb
min. 0.2362 in
 Minimum width of space required in housing on small side face
ra
max. 0.0984 in
 Radius of shaft fillet
rb
max. 0.0787 in
 Radius of housing fillet

Calculation data

SKF performance class
SKF Explorer
Basic dynamic load rating C
34 621 lbf
Basic static load rating C0
31 473 lbf
Fatigue load limit Pu
3 732 lbf
Reference speed
5 300 r/min
Limiting speed
6 300 r/min
Limiting value e
0.35
Calculation factor Y
1.7
Calculation factor Y0
0.9

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