Parker TM Series, Technical Manual

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109 - PVD 3622_GB_TM_January 2014.Docx
4.4.2. Bearings re-greasing intervals
Proper lubrication of ball or roller bearings requires re-greasing at regular intervals.
The re-greasing procedure described below should be undertaken every 7000 hours.
For thrust bearing, re-greasing interval is describes in §3.5.3.
This is an estimated re-greasing interval value, valid for an operating temperature of
70°C, using SKF LGEP2 (up to 100°C - ref Parker 4121P0014), LGHB2 (up to 150°C
- ref Parker 4121P0016) or equivalent grease.
To take into account the accelerated ageing of the grease with increasing
temperature, we recommend halving the re-greasing interval for every 15°C increase
of the bearing temperature, between 70°C and the maximal grease operating
temperature. It is not recommended to prolong the re-greasing interval for
temperatures below 70°C.
Caution: Grease temperature should never exceed 100°C. Otherwise,
use a different grease.
ATTENTION: For thrust bearing , re-greasing intervals depend on
load and decrease with high load
–
see §3.5.3.
Caution: Run the motor slowly during the regreasing operation..
An oil leakage could appear on the front and rear of the motor, it has
no impact on the bearings and motor lifetime.
When re-greasing, remove the lower plugs (2) from the front and rear flange,
introduce the quantity of grease required (see table below) into the front and rear
grease fittings (1) so that the used grease is pushed out. Do not forget to replace the
grease drain plugs (2) when the operation is finished.
The following table gives the grease quantities (in grams), that have to be introduced
into the front and rear fittings depending on Thrust Bearing size:
Thrust Bearing
Shaft Heights
200 mm 315 mm 400 mm
Front Rear Front Rear Front Rear
29420 96 g 25 g
29422 123 g 39 g
29424 123 g 25 g
29426 154 g 39 g
29430 174 g 39 g 214 g 79 g
29434 254 g 79 g
29440 323 g 79 g
No thrust bearing 25 g 25 g 39 g 39 g 79 g 79 g