Rockwell Automation VPS-B1653D-PJ12DF Kinetix VP Stainless-steel Servo Motor with 130...165 mm Frame Size Install - Manual (Page 6)

6 Kinetix VP Stainless-steel Servo Motor with 130 mm and 165 mm Frame Size
Rockwell Automation Publication VPS-IN002A-EN-P - April 2013
Using Shaft Seals
A seal is installed on the motor shaft to protect the front bearing from fluids or fine dust that can
contaminate the motor bearing and reduce its lifetime. The IP66, IP67, or IP69K rating for the
motor depends on the shaft seals and the environmental seal on the connector and cable:
•
Refer to Sealing Air Accessory Kit on page 18 to find the catalog numbers of seal kits
available for your motor.
•
Refer to Environmental Specifications on page 17 for brief descriptions of IP ratings.
Refer to Kinetix Motion Control Selection Guide, publication GMC-SG001 , to find
environmentally sealed cables that are compatible with the Bulletin VPS 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 machine and the
motor shaft must be rigid to achieve acceptable system response. 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. If you attach a
sealed gearbox to the motor shaft, remove the slinger (see
Remove the Slinger on page 14 ).
Refer to Motor Load Force Ratings on page 12 for guidelines on how to achieve 20,000 hours of
motor bearing life.
A shaft key provides a rigid mechanical connection with the potential for self-alignment, but the
key must be properly installed in the keyway. Refer to these sections for additional information:
•
Shaft, Pilot, and Keyway Dimensions, mm (in.) on page 10 for information about the
key and shaft keyway dimensions
•
Remove and Install a Shaft Key on page 13 for recommendations on how to remove and
install a shaft key
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.
Failure to observe safety precautions could result in damage to the motor and its components.