21308 EKW

Spherical roller bearing with tapered bore

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
40 mm
 Bore diameter
D
90 mm
 Outside diameter
B
23 mm
 Width
d2
≈60 mm
 Shoulder diameter of inner ring
D1
≈79.8 mm
 Shoulder/recess diameter of outer ring
r1,2
min.1.5 mm
 Chamfer dimension
Abutment dimensions - 21308 EKW

Abutment dimensions

Da
max.81 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
107 kN
Basic static load rating C0
108 kN
Fatigue load limit Pu
12 kN
Reference speed
7 000 r/min
Limiting speed
9 500 r/min
Limiting value e
0.24
Calculation factor Y1
2.8
Calculation factor Y2
4.2
Calculation factor Y0
2.8

Tolerance class

Dimensional tolerances
Normal
Radial run-out
P5
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SKU: 21308 EKW-SKF Categories: , ,
SKF

Description

Properties

Number of rows 2
Locating feature, bearing outer ring Without
Bore type Tapered 1:12
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 0.738 kg
eClass code 23-05-09-11
UNSPSC code 31171510

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(40X90X23) (21308EKW) (21308EK) (21308K) (21308CCK)

Additional information

Weight 0.738 kg
Size (mm)

Colour

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