Bearing assembly
 
Under the action of a radial loading, rotational bearings have a tendancy to turn against their housings or shafts, which can cause premature wearing of the aforementioned componants. Therefore, the bearings must be fixed to the other elements of the assembly (shafts or housings), so that they become an integral part of the system

RULE: A bearing ring which rotates in relation to the movement of the load must be installed solidly. A bearing ring which rotates with the load movement must be free.

Rotation of the bore with respect to the loading

Rotation of the bore with respect to the loading

ADJUSTMENTS TO BEARINGS
Recommened adjustments to ball, roller or needle bearings. The adjustment is in relation to C/P where C = Standard dynamic load off the bearing and P = Equivalent radial load
   
Tolerances
shaft-type of bearing
  
Assembly
methods for rings
Load
C/P
Shaft ?/B> ball
bearing
roller
bearing
Spherical
Roller
bearing
Bore Observations Examples
of use
Fixed inner rings weak
>10
<40
40-140
140-200
h6
j6
k6
j6
k6
m6
j6
k6
m6
H7 Movement of the
outer ring is easily
possible
Small electric motors;
machine - tools;
ventilators, pumps;
common mechanics
normal
>5
<10
<40
40-140
140-200
j6

m6
k6

p6
k6

p6
H7 General mecanics;
Electric motors;
reducing gearboxes
high
<5
<40
40-140
140-200
-
-
-
n6
p6
p6
n6
p6
p6
J7 Movement of the
outer ring is still
possible
laminators;
large compressers.
Fixed
outer
rings
weak
>10
all ?/FONT> g6 K7 - M7 Movement of the
outer ring is
impossible


The inner ring can be
displaced axially.
Loose wheels;
transport rollers
normal
>5
<10
all ?/FONT> g6 N7 pulleys;
rod ends
load bearing wheels
high
<5
all ?/FONT> g6 P7 pulleys;
rod ends
load bearing wheels.