Al-Grooved Bearings
Inspection / Evaluate
A5.05. 02.03.09.01
M20
en / 26.09.1995 IB000142 4/7
02
Ĺ
2. Wear
Condition:
The bearing has in some places been worn down to such an extent that the bearing metal
ridges and the overlay grooves have reached a ration of 1:1. The width of the bearing metal
ridges has increased from 25 % (when new) to 50 %. Some overlay still exists in the
grooves (Fig. 6).
Wear limits:
a) max. 30 % of circumference
b) max. 70 % of width
c) max. 50 % of circumference
d) max. 35 % of width
Assessment:
Bearing is operative. Should a condition of wear as shown in 3 be expected within the next
inspection interval, bearing has to be replaced for safety reason.
Fig. 6
Overlay-groove
Bearing metal ridge
b
a
d
c
Fig. 7
= Wear 1:1
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