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Alignment Free Assembly and Installation – Cast Design

Introduction

The Alignment Free Drive design consists of a shaft mounted
gear drive, bell housing, torque arm, motor and coupling.
When assembled, the gear drive, bell housing and motor
locate off registers, resulting in alignment of the shafts.
Therefore, no additional alignment is required for the
high-speed coupling.

Assembly Instructions

The Bell Housing is fastened to the gear drive’s high-speed end
using capscrews through the twelve mounting holes on that
face with a lock washer, (see Table 1 for size and torque). Apply
Loctite® #242 or equivalent to mounting fastener threads. The
bell housing will locate on the bevel head of the gear drive.
Read instructions provided with high speed coupling prior to
assembly.

High Speed Shaft Fan

High speed shaft fan is standard on all Drive One Alignment
Free Drives. Fan size and position is independent of high speed
coupling size or type. Assemble fan to fan hub, apply Loctite
#242 or equivalent to fastener threads and tighten.

CAUTION:

Do not over-tighten fasteners into plastic fan as fan may crack.

Mount the fan hub on the gear drive high speed shaft such that
the set screw hole in the hub is towards the end of the shaft.
Locate the hub axially at the values listed in Table 2.
Dimensions listed are from the inside face of the bell housing to
the far side of the hub, see Figure 1. Apply Loctite #242 or
equivalent to threads of the set screw and tighten over key to
secure hub in position. Fan hub must be installed prior to
installing high speed coupling hub.

Assemble fan shroud mounting rails to bell housing. Assemble
fan cowling with expanded metal guard to back of fan
shroud/plates on same fasteners. Mount fan shroud assembly
to mounting rails. The cowling may require to be notched to
allow clearance for the bell housing to drive mounting
fasteners. Rotate fan to ensure clearance, reposition fan hub if
necessary. Split fan guard may be removed or installed without
disrupting high speed coupling. See Figure 2.

Fluid Coupling

The fluid coupling can be installed/removed without removing
the motor, (see fluid coupling instructions for procedure).
Mount the coupling hubs to the drive high speed shaft and the
motor shaft. Hubs are to be mounted flush with the end of the
shafts (coupling hubs may be furnished with an interference fit).
Mount the motor to the bell housing, apply Loctite #242 or
equivalent fastener threads and tighten to proper torque. Install
fluid coupling per coupling instructions.
To fill the fluid coupling to the proper oil level, install the small
top cover on the bell housing. Rotate the fluid coupling such
that the fill hole is up and fill with the approximate quantity of
oil (see coupling instructions for oil type and quantity). Rotate
the coupling in either direction to align the mark on the
perimeter of the fluid coupling with the mark in the center of
the cover on the bell housing. A container should be placed to
catch any excess oil that may spill from the fill hole. If oil drains
from the fill hole, allow all excess to drain to achieve the proper
fill level. If no oil drains when marks are aligned, rotate
coupling back and add more oil. Repeat process until excess
oil drains and proper fill level is achieved.

Close Coupling

Mount the coupling hubs to the drive high speed shaft and
motor shaft. Hubs are to be mounted flush with the end of the
shafts unless otherwise noted (coupling hubs may be furnished
with an interference fit). Mount the motor to the bell housing,
apply Loctite #242 or equivalent to fastener threads and
tighten to proper torque. Install high speed coupling per
coupling instructions.

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

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Appendix D

Type D Series

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Sizes M1220 thru M1250