8.10.5 Rolling-contact bearing faults
Note
Damage to roller bearings can be difficult to detect in some cases. If in doubt, replace the roller
bearing. Contact the Service Center.
Table 8-4 Roller bearing faults
↓ Bearing overheats
↓ Bearing "whistles"
↓ Bearing "knocks"
Possible causes of fault Remedial measures
X High coupling pressure Align the machine more accurately.
X Ambient temperature higher than 40 °C Use high-temperature grease.
X X Insufficient lubrication Grease the bearings as instructed.
X Too much grease in bearing Remove surplus grease. Contact the Service Center, if necessary.
X Wrong grease in the bearing Use the correct grease.
X Belt tension too high * Reduce the drive belt tension.
X Bearing contaminated
Contact the Service Center.
X X Bearing canted
X X Insufficient bearing play
X X Bearing corroded
X Friction marks on raceway
X Scoring (brinelling)
X Excessive bearing play
X Mechanical wear of bearing elements
* Only in special version
8.10.6 Holding brake faults
Information on holding brake faults can be found in the manufacturer's operating instructions
in the (Page 139) appendix.
Operation
8.10 Faults
SIMOTICS M-1PH8 1PH818., 1PH822.
Operating Instructions 07/2016 99
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