Fixed Torque Arm Installation
Introduction
The Drive One spherical bearing link style torque arm is
available for all shaft mounted Drive One Large Conveyor
Drive Sizes, both parallel shaft Type DH and right angle Type
DB. It is used to support the drive when mounted in a standard
horizontal position. The torque arm accessory is suitable for use
on swing bases, bedplates, Alignment Free or mounted directly
to the drive. The torque arm requires mounting holes in the
driven equipment support structure to provide for attachment.
The customer is responsible for determining the structural
integrity of their support member.
Mounting
It is natural for the drive system to move during operation. This
movement is due to runout from the driven equipment shaft
and gear drive low speed shaft. Plain spherical bearings and a
link are used to provide a resilient mounting support that
accommodates the motion of the drive. To allow for maximum
movement, the torque arm should be perpendicular to the
supports and centered in the mounting clevis. Restricting the
drive’s motion will result in premature failure of the drive or
driven equipment.
Installation
1. Position the drive on the driven equipment shaft such that
the torque arm link is centered in the mounting clevis.
Ideally, the clevis mounting holes should be added to the
structure after the drive has been secured to the driven
equipment.
NOTE: Do not fasten the torque arm to the support
structure at this time.
2. Secure the drive to the driven equipment via the rigid
coupling connection.
3. Mount the clevis to the drive or drive system. Locate the
position of the clevis to be mounted to the support
structure. Match drill the mounting holes for M24 Cl. 8.8
or 1 inch Grade 5 fasteners or better.
4.
(IF REQUIRED)
Mount plain spherical bearings into link.
Secure bearings with retainer plate and cap screws. Apply
Loctite 242 Threadlocker or equivalent to fastener threads
prior to installation.
5. Install pin through one lug of clevis mounted to drive.
Position spacer, then link (with spherical bearings previously
installed) and finally second spacer on pin. Finish
positioning pin within clevis. Install retaining rings to each
side of pin to retain pin. Refer to Figure 1.
6. Install pin in clevis mounted to supporting structure in a
similar manner. The drive may need to be rotated about
the low speed shaft to install second pin. If the drive has a
backstop, it may be necessary to disconnect the backstop
to rotate the drive. Refer to the backstop instructions for
removal.
7 Verify the torque arm link is centered in the clevis and is not
restricting motion of the drive.
Rexnord Industries, LLC, Geared Products, P.O. Box 492, Zip 53201-0492
168-056
3001 W. Canal St., Zip 53208-4200, Milwaukee, WI USA Telephone : 414-342-3131
(PN 2128959) February 2009
Fax: 414-937-4359 e-mail: [email protected] web: www.rexnord.com
NEW
Falk™ Drive One™ Model C Conveyor Drives
•
Appendix A
Type D Series
•
Sizes M1220 thru M1250
(Page 9 of 16)
SPACER (4)
PLAIN SPHERICAL
BEARING (2)
PIN
EVEN GAP
CAPSCREW (6)
RETAINING
RING (4)
RETAINING
PLATE (2)
PIN
MOUNTING
CLEVIS (2)
Figure 1
