21307 CC

Spherical roller bearing

Spherical roller bearings can accommodate heavy loads in both directions.

They are self-aligning and accommodate misalignment and shaft deflections, with virtually no increase in friction or temperature. They can be used in a modular system, including housings, sleeves and nuts.

  • Accommodate misalignment
  • High load carrying capacity
  • Low friction and long service life
  • Increased wear resistance

Dimensions

d
35 mm
Bore diameter
D
80 mm
Outside diameter
B
21 mm
Width
d2
47.2 mm
Shoulder diameter of inner ring
D1
65.6 mm
Shoulder/recess diameter of outer ring
r1,2
min.1.5 mm
Chamfer dimension
Abutment dimensions - 21307 CC

Abutment dimensions

da
min.44 mm
Diameter of shaft abutment
Da
max.71 mm
Diameter of housing abutment
ra
max.1.5 mm
Radius of fillet

Calculation data

SKF performance class
SKF Explorer
Basic dynamic load rating C
79.2 kN
Basic static load rating C0
72 kN
Fatigue load limit Pu
8 kN
Reference speed
8 500 r/min
Limiting speed
12 000 r/min
Limiting value e
0.28
Calculation factor Y1
2.4
Calculation factor Y2
3.6
Calculation factor Y0
2.5

Tolerance class

Dimensional tolerances
Normal
Radial run-out
P5

Description

Properties

Number of rows 2
Locating feature, bearing outer ring Without
Bore type Cylindrical
Cage Sheet metal
Radial internal clearance CN
Tolerance class for dimensions Normal
Tolerance class for run-out P5
Sealing Without
Lubricant None
Relubrication feature Without

Logistics

Product net weight 0.533 kg
eClass code 23-05-09-11
UNSPSC code 31171510

(35X80X21) (21307CC) (21307E) (21307)

Additional information

Weight 0.533 kg
Size (mm)

Colour