Siemens BA 2030 SERIES, Operating Instructions Manual

Page: 84 / 166

Service and maintenance
8.4 Replace bearings
BA 2030
82
Operating Instructions, 11/2017, A5E37880173A/RS-AE
Maintenance of the output-side bearing
Note
Change the grease filling of the roller bearing when you change the gear oil.
For refilling, use lithium-saponified roller bearing grease NLGI 3/2.
Procedure
1. Dismantle the output-side bearing unit.
2. Clean the bearing.
3. Fill the bearing with the new grease up to approximately 30% of the free bearing
chamber.
4. Reassemble the bearing unit.
Maintenance interval after regreasing
After regreasing, the maintenance interval can be increased to the following number of
operating hours.
Table 8- 7 Maintenance interval in operating hours [h] for relubrication
Output speed n
2
Operating hours for size
89
109 129 149 169
[rpm] [h]
≤ 30 80000 80000 80000 80000 50000
31 … 50 80000 50000 50000 40000 40000
51 … 100 40000 32000 32000 28000 25000
101 … 150 28000 28000 25000 25000 20000
151 … 250 25000 20000 20000 15000 15000
251 … 400 20000 15000 15000 10000 10000
8.4 Replace bearings
The bearing service life depends greatly on the operating conditions and so cannot be
calculated reliably. In the operating conditions specified by the operator, bearing life can be
calculated and indicated on the rating plate. If no information is given, changes in vibration
and noise pattern can serve as an indicator that an immediate bearing replacement is
necessary.