Page 256 - Rollingbearings

Loads

1 Deep groove ball bearings

1
Loads

Single row deep groove ball bearings Stainless steel deep groove ball
bearings

Minimum load q ν n w2/3 q d w 2
m
rm
< 1 000 z
——
r
For additional F = k ––––– < 100 z
information
† page 106 If minimum load cannot be reached, consider preloading.
Axial load carrying Pure axial load → F ≤ 0,5 C 0 Pure axial load → F ≤ 0,25 C
a
a
0
capacity Small bearings 1) and light series bearings 2) → F ≤ 0,25 C 0
a
Excessive axial load can lead to a considerable reduction in bearing service life.
Load carrying The values for basic load ratings and fatigue load limits listed in the
capacity of product table apply to single bearings. For matched bearing pairs
matched bearing mounted immediately adjacent to each other the following values
pairs apply:

• basic dynamic load rating
C = 1,62 C single bearing
• basic static load rating
C = 2 C 0 single bearing
0
• fatigue load limit
P = 2 P u single bearing
u

Equivalent Single bearings and bearing pairs arranged in tandem: F /F ≤ e → P = F
r
a
r
dynamic bearing F /F ≤ e → P = F F /F > e → P = X F + Y F a
r
r
r
a
r
a
load F /F > e → P = X F + Y F a
a
r
r
For additional Bearing pairs arranged back-to-back or face-to-face:
information F /F ≤ e → P = F + Y F
r
a
1 a
r
† page 91 F /F > e → P = 0,75 F + Y F
2 a
r
r
a
Equivalent static Single bearings and bearing pairs arranged in tandem: P = 0,6 F + 0,5 F a
r
0
bearing load P = 0,6 F + 0,5 F a P < F → P = F r
0
0
r
0
r
P < F → P = F r
0
r
0
For additional
information Bearing pairs arranged back-to-back or face-to-face:
† page 105 P = F + 1,7 F a
0
r
1) d ≤ 12 mm
2) Diameter series 8, 9, 0, and 1
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