Dodge Imperial User manual

1
Imperial & ISAF Bearing
Instruction Manual
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 o and
lock-out or tag power source before proceeding. Failure to observe these
precautions could result in bodily injury.
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 specied 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 specied 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 qualied 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.
WARNING: All products over 25 kg (55 lbs) are noted on the shipping
package. Proper lifting practices are required for these products.
INSPECTION
Inspect shaft to ensure it is smooth, straight, clean and within
commercial tolerances.
MOUNTING
Install the Non-Expansion Unit First
1. Remove lock plate located on the face of the locknut.
2. Turn locknut counterclockwise until bearing will freely slide
onto the shaft.
3. Slide bearing to the desired position on the shaft.
NOTE: All weight must be removed from the bearing
when obtaining the zero reference point.
4. The zero reference point is dened as the point when the
clearance between the adapter sleeve, shaft, and bearing
bore has been removed.
To reach the zero reference point, rotate locknut clockwise
using both hands as tightly as possible. When mounting
bearing with shaft sizes 3-15/16" and larger, the following test
must be performed. As a test to ensure you have reached the
zero reference point, tap on the O.D. of the nut with a hammer
and attempt to rotate the nut using both hands. If the nut will
not rotate then you have reached zero reference point and
you should proceed to step 5. If you can rotate the nut using
both hands, you have not reached the true zero reference
point and you should repeat step 4a until zero reference point
is obtained. When the zero reference point is reached, the
bearing will not be able to move by hand axially on the shaft.
5. Scribe a line through the locknut face and adapter face.
6. Using a spanner or drift and hammer, rotate locknut clockwise
by the number of turns shown in Table 1.
Table 1–Locknut Rotation from “Zero Reference Point”
Shaft Size (inches) Locknut Rotation
1-1/8 - 1 7/16 3/4 to 7/8 turn
* 1-1/2 3/4 to 7/8 turn
** 1-1/2 7/8 to 1 turn
1-5/8 - 2 7/8 to 1 turn
2-3/16 - 3 1 to 1-1/4 turns
3-3/16 - 4 1-1/4 to 1-1/2 turns
4-7/16 - 4 1/2 1-1/8 to 1-3/8 turns
4-15/16 - 5 1/2 1-3/8 to 1-5/8 turns
5-15/16 - 6 1 to 1-1/4 turns
6-7/16 - 7 1-1/8 to 1-3/8 turns
* IMPERIAL IP & ISAF
** IMPERIAL IP With Type E Dimensioned Housing
Figure 1
Locknut
Lock Plate
Adapter Sleeve
Scribe Line
Figure 2
Dismount Mount
Figure 3

Dodge Industrial, Inc.
1061 Holland Road
Simpsonville, SC 29681
[phone]
All Rights Reserved. Printed in USA.
MN3009 03/22
*3009-0322*
© DODGE INDUSTRIAL, INC.
AN RBC BEARINGS COMPANY
7. Slide lock plate over shaft and align tang of lock plate with slot
in adapter sleeve.
8. Tighten, do not loosen, locknut until lock plate slots overlap
the two threaded holes on the locknut face.
9. Insert and tighten button head screws to locknut face.
10. Bolt down pillow block or ange unit to the structure.
Install the Expansion Unit
1. Remove lock plate located on the face of the locknut.
2. Turn locknut counterclockwise until bearing will freely slide
onto the shaft.
a. If Locknut Facing Outboard: Align housing mounting
holes with substructure mounting holes and snug bolts.
Push insert as far as possible in the direction of the xed
bearing.
b. If Locknut Facing Non-Expansion Bearing: Align
housing mounting holes with substructure mounting
holes and snug bolts. Position expansion bearing insert
in center of housing (Note: This is necessary due to the
fact that in the process of mounting, the bearing is being
drawn toward the locknut.).
NOTE: All weight must be removed from the bearing
when obtaining zero reference point.
3. Follow steps 4 through 10 found under "Install the Non-
Expansion Unit First" section.
DISMOUNTING
1. Remove weight from bearing via slings or jacks.
2. Remove mounting bolts from bearing.
3. Remove button head screws and lock plate from locknut.
4. (Figure 3) Rotate locknut counterclockwise until bearing
freely slides from the shaft.
Successful operation is dependent upon adequate lubrication.
Precaution should be taken during handling and recycling of
grease, oil, or water glycol mixtures.
FIELD CONVERSION OF A NON-EXPANSION
BEARING INTO AN EXPANSION BEARING
Imperial IP
1. Move snap ring opposite collar side to the outmost snap ring
groove.
2. Remove non-expansion nameplate and re-label as an
expansion bearing.
ISAF
1. Remove bearing cap.
2. Remove stabilizing ring.
3. Reassemble cap on base and torque cap bolts to values in
Table 2.
Table 2–Cap Bolt Torque for ISAF Grade 5 Bolts
ISAF
Shaft Size (inches)
2 Bolt Base 4 Bolt Base
Bolt Size Torque
Ft-Lbs. Bolt Size Torque Ft-Lbs.
1-7/16 - 1-11/16 3/8 - 16 24 - 30
1-15/16 - 2-3/16 7/16 - 14 40 - 50
2-7/16 - 2-1/2 1/2 - 13 60 - 75 1/2 - 13 60 - 75
2-11/16 - 3 5/8 - 11 120 - 150 5/8 - 11 120 - 150
3-3/16 - 3-1/2 3/4 - 10 208 - 260 3/4 - 10 208 - 260
3-11/16 - 4 3/4 - 10 208 - 260
4-7/16 - 4-1/2 7/8 - 9 344 - 430
4-15/16 - 7 1 - 8 512 - 640
GREASE LUBRICATION
Dodge IP and ISAF bearings are pre-packed with NLGI #2
Lithium Complex grease. For relubrication, select a grease that
is compatible with a #2 Lithium Complex grease. Relubricate in
accordance with Table 3.
STORAGE OR SPECIAL SHUTDOWN
If exposed to wet or dusty conditions or to corrosive vapors, extra
protection is necessary. Add grease until it shows at the seals;
rotate the bearing to distribute grease; cover the bearing. After
storage or idle period, add a little fresh grease before running.
Table 3–Re-Lubrication Intervals (Months) Based on 12 hours per day, 150° F M
Shaft Size
(inches)
RPM
250 500 750 1000 1250 1500 2000 2500 >3000
1-1/8 to 2 4 3 2 2 1 0.5 0.25 0.25 0.25
2-3/16 to 2-1/4 3.5 2.5 1.5 1 0.5 0.5 0.25 0.25 0.25
2-3/8 to 3 3 2 1.5 1 0.5 0.25 0.25 0.25 0.25
3-3/16 to 3-1/2 2.5 1.5 1 0.5 0.25 0.25 0.25 0.25 -
3-11/16 to 4-1/2 2 1.5 1 0.5 0.25 0.25 0.25 - -
4-15/16 to 5-1/2 1.5 1 0.5 0.25 0.25 0.25 - - -
5-15/16 to 6 1 0.5 0.5 0.25 0.25 0.25 - - -
6-7/16 to 7 1 0.5 0.25 0.25 0.25 - - - -