WARNING: Because of the possible danger to person(s) or property from accidents which may result
from the improper use of products, it is important that correct procedures be followed. Products must
be used in accordance with the engineering information specified in the catalog. Proper installation,
maintenance and operation procedures must be observed. The instructions in the instruction manuals
must be followed. Inspections should be made as necessary to assure safe operation under prevailing
conditions. Proper guards and other suitable safety devices or procedures as may be desirable or
as may be specified in safety codes should be provided, and are neither provided by Dodge nor are
the responsibility of Dodge. This unit and its associated equipment must be installed, adjusted and
maintained by qualified personnel who are familiar with the construction and operation of all equipment
in the system and the potential hazards involved. When risk to persons or property may be involved, a
holding device must be an integral part of the driven equipment beyond the speed reducer output shaft.
ASSEMBLY OF USAF, USDAF, SAFS & SAF-XT BEARINGS
These instructions must be read thoroughly before installation or operation. This instruction manual was
accurate at the time of printing. Please see
dodgeindustrial.com
for updated instruction manuals.
WARNING: To ensure the drive is not
unexpectedly started, turn off and lock-out
or tag power source before proceeding.
Failure to observe these precautions could
result in bodily injury.
WARNING: All products over 25 kg (55 lbs)
are noted on the shipping package. Proper
lifting practices are required for these
products.
1. Clean shaft. Slide V-ring seal on shaft with
lip toward bearing (for sizes up to 10 1/2”
bore only.)
2. Slide seal ring on the shaft with largest OD
toward bearing. For sizes larger than 10”
ER ring replaces V-ring and seal ring.
3. Position adapter sleeve on shaft, thread
outboard to approximate location with
respect to required centerline.
4. Coat OD of adapter sleeve with a light oil.
It will facilitate mounting.
5. Measure the internal clearance of the
bearing at the 12 o’clock position before
mounting, then position bearing on the
adapter sleeve. Locate bearing in proper
position on shaft.
6. Install the lockwasher (8” and smaller
sizes only) on the adapter with inner prong
located in the slot and toward the bearing.
Install locknut, chamfered face toward
bearing.
7. Tighten locknut using a spanner wrench
and hammer or drift pin until clearance
measured in Step 5 is reduced by amount
shown in Table. While tightening, measure
clearance a the 6 o’clock position. During
this step, shaft must be supported so all
weight is off of the bearing.
8. Find a lockwasher tab that aligns with
a locknut slot and bend tab into slot. If
slot is past tab then tighten, not loosen,
locknut to meet a washer tab.
9. Sizes larger than 8” require a lockplate
bolted to the locknut with the inner prong
of the place located in the slot of the
adapter sleeve. If necessary, tighten, not
loosen, locknut to allow prong to fit in
adapter slot.
10. Install a second seal ring with large OD
toward locknut*.
11. Slide second V-ring seal onto the shaft,
again making certain lip is toward bearing.
Do not install V-ring seal on seal ring until
housing cap has been set in place and
tightened. For sizes larger than 10” ER ring
replaced V-ring and seal ring.
12. Apply grease to the bearings and seal
rings. The lubricant should be packed
between the rolling elements. Pack the
lower half of the housing one-third (1/3) full
for high speed operation, one-half (1/2) full
for normal speed operation and 100% full
for slow speed operations.
13. Place shaft with bearing into lower half of
housing while carefully guiding the seal
rings into the housing grooves.
14. Bolt lower half of the non-expansion
bearing housing to the base. Move shaft
endwise so that stabilizing ring can be
inserted between the bearing outer ring
and the lower half shoulder on same side
as locknut. Make all other bearings on
the same shaft expansion by centering
in the middle of their housing seat. Bolt
expansion housing to base.
15. Grease the bearing seal grooves in the
housing cap and place over the bearing
after wiping the mating surfaces. The two
dowel pins will align the cap and the lower
housing half.
16. Tighten cap bolts or nuts to values
recommended by bolt manufacturers in
accordance with the bolt grade.
17. Assure that there is seal ring running
clearance then install V-ring seals onto the
seal rings. Make sure V-ring seal lip rides
against face of housing. Cover each V-ring
seal with a heavy coat of grease.
*If auxiliary seals are used, follow appropriate
instruction manual that accompanies auxiliary
seal.
