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.