Rockwell Automation RDD-B2153 Rotary Direct Drive Bearingless Motors - Manual (Page 13)

RDD-Series Rotary Direct Drive Bearingless Motor Installation Instructions 13
Publication RDB-IN001A-EN-P — October 2009
Tighten the Compression Coupling
Follow these steps to secure the motor on the machine shaft.
1. Remove the black cap screw from the hole A using a Phillips #4 screwdriver.
Refer to the motor outline on page 19 for the location of the compression
coupling fitting and alignment pin.
2. Use a 6 mm hex bit to tighten the compression coupling in hole A to
29.8 N•m (22 lb•ft) .
Secure the Shipping Hardware
Follow these steps to secure loose hardware used during motor installation and to
prepare the motor for use.
1. Remove the silver shipping alignment pin from hole B, and insert it in
hole A.
2. Insert the black cap screw in hole B.
3. Tighten the alignment pin and the cap screw to the value specified in this
table.
4. Rotate the machine shaft or load by hand to verify free rotation of the motor.
ATTENTION
Improper torque values may cause the machine shaft to slip in the compression coupling.
This may generate sufficient friction and heat to permanently weld the motor hub to the
machine shaft.
Failure to observe this safety precaution could result in damage to the motor and the
machine.
Motor Cat. No. Fastener Type Torque Value
RDB-B215x Alignment pin with
8 mm hex head
18.0 N•m (13 lb•ft)
RDB-B215x Cap screw 3.4 N•m (2.5 lb•ft)