8.9.4
Roller bearing faults
Note
Damage to roller bearings can be difficult to detect in some cases. If in doubt, replace the
bearing. Use other bearing designs only after consulting the manufacturer.
Table 8-4
Roller bearing faults
↓ Bearing overheats
↓ Bearing "whistles"
↓ Bearing "knocks"
Possible causes of faults
Remedial measures
X
High coupling pressure
Align the machine more accurately.
X
Belt tension too high
Reduce the drive belt tension.
X
Bearing contaminated
Clean the bearing or replace it. Check the seals.
X
High ambient temperature
Use a suitable high-temperature grease.
X
X
Insufficient lubrication
Grease the bearings as instructed.
X
X
Bearing canted
Properly install the bearing.
X
X
Insufficient bearing play
Only after consultation with the manufacturer: Fit a bearing with
greater play.
X Excessive bearing play
Only after consultation with the manufacturer: Fit a bearing with
lower play.
X
X
Bearing corroded
Replace the bearing. Check the seals.
X
Too much grease in bearing
Remove surplus grease.
X
Wrong grease in the bearing
Use the correct grease.
X Friction marks on raceway
Replace the bearing.
X Scoring (brinelling)
Replace the bearing. Avoid any vibration at standstill
Operation
8.9 Faults
SIMOTICS DC 1GG6
Operating Instructions 02/2016
79
Summary of Contents for SIMOTICS DC 1GG6
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Page 12: ...Table of contents SIMOTICS DC 1GG6 12 Operating Instructions 02 2016 ...
Page 14: ...Introduction 1 1 About these instructions SIMOTICS DC 1GG6 14 Operating Instructions 02 2016 ...
Page 70: ...Commissioning 7 8 Switch off SIMOTICS DC 1GG6 70 Operating Instructions 02 2016 ...
Page 82: ...Operation 8 9 Faults SIMOTICS DC 1GG6 82 Operating Instructions 02 2016 ...
Page 104: ...Maintenance 9 2 Repair SIMOTICS DC 1GG6 104 Operating Instructions 02 2016 ...
Page 138: ...Service and Support SIMOTICS DC 1GG6 138 Operating Instructions 02 2016 ...
Page 142: ...Quality documents SIMOTICS DC 1GG6 142 Operating Instructions 02 2016 ...
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