Page 24 - Rollingbearings

A.1 Bearing basics
Terminology Fig. 8 Fig. 9
Symbols for boundary dimensions Symbols for boundary dimensions
– radial bearings – thrust bearings
Some frequently used bearing terms are
explained here For a detailed collection of
bearing-speciic terms and deinitions, refer B
to ISO 5593 Rolling bearings – Vocabulary.
Symbols used in this catalogue are mainly in r
accordance with ISO standards. The most
common symbols are (ig. 8 and ig. 9): α r d r
Bearing basics d Bore diameter D d r D H

D Outside diameter
B Bearing width
Bearing height
H
α Contact angle
A.1 r Chamfer dimension

Shaft-bearing- Fig. 10

housing system Terminology – Shaft-bearing-housing system

(ig. 10)
12 14 1
3
1 Cylindrical roller bearing 5
2 Four-point contact ball bearing
13
3 Housing 2
4 Shaft
5 Shaft abutment shoulder 7
6 Shaft diameter 11 4
7 Shaft seat 6
8 End plate
10 8
9 Radial shaft seal
9
10 Seal wear ring
11 Housing bore diameter
12 Housing seat
13 Housing cover
14 Snap ring

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