21318 EKSpherical roller bearing with tapered bore and relubrication features

SKU: 21318 EKSpherical roller bearing with tapered bore and relubrication features

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. The design includes features to facilitate relubrication. The bearings can be used in a modular system, including housings, sleeves and nuts.

ID:199115

SKF performance class
SKF Explorer
Bore type
Tapered 1:12

Dimensions - 21318 EK

Dimensions

d
90 mm
Bore diameter
D
190 mm
Outside diameter
B
43 mm
Width
d2
112 mm
Shoulder diameter of inner ring
D1
150 mm
Shoulder/recess diameter of outer ring
b
8.3 mm
Width of lubrication groove
K
4.5 mm
Diameter of lubrication hole
r1,2
min. 3 mm
Chamfer dimension

Abutment dimensions - 21318 EK

Abutment dimensions

Da
max. 176 mm
Diameter of housing abutment
ra
max. 2.5 mm
Radius of fillet

Calculation data

Basic dynamic load rating C
393 kN
Basic static load rating C0
450 kN
Fatigue load limit Pu
45.5 kN
Reference speed
3 600 r/min
Limiting speed
4 800 r/min
Limiting value e
0.24
Calculation factor Y1
2.8
Calculation factor Y2
4.2
Calculation factor Y0
2.8

Mass

Mass
6.2 kg

Mounting information

Recommended tightening angle for lock nut α
150 °

Tolerance class

Dimensional tolerances
Normal
Radial run-out
P5

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