Schaeffler YRTC - Overlubrication; Initial Operation

Schaeffler Technologies MON 100 25
Overlubrication The bearings may be damaged by overheating as a result of
increased frictional torque when operating at high speeds if they
have been accidentally overlubricated.
In order to achieve the original frictional torque again, the running-in
cycle must be carried out.
Initial operation Rolling bearings may exhibit increased frictional torque during initial
operation, which can lead to overheating where there is immediate
operation at high speeds.
NOTICE
In order to prevent overheating of the bearing, the running-in cycle
must always be carried out. The running-in cycle may be shortened
if there is appropriate monitoring of the bearing temperature.
The bearing ring temperature must not exceed +70 °C.

In the case of swivel type axes (low speed or small operating
duration), the running-in cycle is not required.
n
G
= limiting speed,
see dimension tables
t=time
Figure 17
Running-in cycle for initial operation
and after overlubrication
t
n
G
10
0
20
30
40
50
60
70
80
%
h01 2 34
YRTC, YRTCM, YRTS, YRTSM,
YRTCMA, YRTSMA, YRTCMI
ZKLDF
00194A1B00194A1B