Curtiss-Wright EXLAR Tritex II AC - Lubrication Maintenance; Grease Renewal

Curtiss-Wright | Tritex II AC 90, 115 Rev. X PN39892 7/12/22
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Lubrication Maintenance
Grease lubricated units will require periodic inspection and renewal of
the bearing and roller screw grease. The table below shows the
recommended grease renewal period.
RMS
rotational
speed (RPM)
Recommended Grease Renewal Period (hours)
CASE TEMP 65°C
(149°F)
CASE TEMP 80°C
(176°F)
250
10,000
5,000
500
8,500
4,250
1000
6,000
3,000
1500+
3,500
1,750
Grease Renewal
The angular contact thrust bearings located in the front of the actuator,
the roller screw cylinder, and the roller screw assembly are the
components that require grease. They require a coating of grease. They
do not need to be packed with grease. Excess grease requires more
torque from the motor when returned to operation, and does not improve
the lubrication of the unit.