Using shaft seals, Using couplings and pulleys – Rockwell Automation VPL-xxxx Kinetix VP Low-inertia Servo Motor 063…165 mm Frame User Manual
Page 5
Kinetix VP Low-inertia Servo Motor with 063…165 mm Frame Size 5
Rockwell Automation Publication VPL-IN001C-EN-P - November 2013
Using Shaft Seals
An additional seal is required on the motor shaft near the motor front bearing if the shaft is
exposed to significant amounts of fine dust or fluids, such as lubricating oil from a gearbox.
An IP66 rating for the motor requires a shaft seal and environmentally sealed connectors and
cables.
The additional seal is not recommended in applications where the motor shaft area is free of
liquids or fine dust, and a lower rating is sufficient:
•
See
Environmental Ratings on page 28
for a brief description of the IP rating for these
motors.
•
for seal kits compatible with your motor.
•
See Kinetix Rotary Motion Specifications Technical Data, publication
o
find environmentally sealed connectors and cables compatible with these motors.
Using Couplings and Pulleys
Mechanical connections to the motor shaft, such as couplings and pulleys, require a torsionally
rigid coupling or a reinforced timing belt. The high dynamic performance of servo motors can
cause couplings, pulleys, or belts to loosen or slip over time. A loose or slipping connection causes
system instability and can damage the motor shaft. All connections between the system and the
servo motor shaft must be rigid to achieve acceptable response from the system. Periodically
inspect connections to verify their rigidity.
When mounting couplings or pulleys to the motor shaft, verify that the connections are properly
aligned and that axial and radial loads are within the specifications of the motor. See
for guidelines to achieve 20,000 hours of motor bearing life.
ATTENTION: Damage can occur to the motor bearings and the feedback device if sharp impact is applied to the
shaft during installation of couplings and pulleys. Damage to the feedback device can result from applying leverage
to the motor mounting face when removing devices mounted on the motor shaft.
Do not strike the shaft, couplings, or pulleys with tools during installation or removal. Use a wheel puller, to apply
pressure from the user end of the shaft, when attempting to remove any device from the motor shaft.