DODGE ISNX Bearings Hydraulic Mount Patent # 7,866,894
Instruction and Lubrication Manual
These instructions must be read thoroughly before installation or operation. Instruction videos can be found on www.dodge-pt.com.
1/4 NPTF 1/4 NPTF
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.
INSPECTION
Inspect shaft to ensure it is smooth, straight, clean and within
commercial tolerances. All weight must be removed from the
shaft prior to installing.
Mount Nut Dismount Nut
TOOLS REQUIRED FOR PROPER Figure 1 - Mount Nut and Dismount Nut
INSTALLATION AND REMOVAL 3. Scribe a line on Adapter face and Dismount Nut.
• Hydraulic Hand Pump, Hose and Fluid 4. Rotate Dismount Nut counter clockwise two full rotations.
• G1/4 - 19 BSPP Fitting The Dismount Nut must remain loose during the mounting
• 0-350 bar Pressure Gauge for Hydraulic Pump procedure but should never be removed. Without loosening
• M6 Allen Wrench the dismount nut, the dismount nut piston will make contact
• Magnetic Base Dial Indicator with the bearing unit as it travels up the adapter. (See Figure
• Torque Wrench with Appropriate Socket (See Table 3) 3) This will not allow the bearing to move up the adapter and
• Drift and Hammer tighten properly.
• Rubber Mallet 5. Rotate Mount Nut counter clockwise one full rotation and tap
• Hand File on the face with a rubber mallet. This will drive the adapter
• Adjustable Wrench toward the Dismount Nut end and ensures the Adapter is
• 13 mm diameter Barring Rods (2), approximately 200 fully expanded.
mm in length 6. Slide one lubricatable auxiliary seal on shaft in same
orientation as when it was removed.
MOUNTING PROCEDURE 7. Slide bearing on shaft and into position. If bearing will not
NOTE: Misalignment must be within ± 1/2º. slide onto the shaft repeat Step 5.
8. Using a spanner or barring rod rotate Mount Nut clockwise
Install Non-Expansion (Fixed) Bearing First until snug. This allows the mount nut piston to be in full
contact with the bearing unit so that when the mount nut
1. Remove lubricatable auxiliary seals from OD of Mount and is pressurized with hydraulic fluid, the piston will push the
Dismount Nuts. Be careful not to damage the two O-rings in bearing unit up the adapter and properly tighten.
bore of seal. Note orientation of seal.
2. Remove lock clips located on the face of both Mount and Table 1 - Starting Position Pressure
Dismount Nuts. Starting Final Recommended Shaft
Bearing Position Position Tolerances
NOTE: The face of the Mount Nut equally spaced drilled and Bore
Series
tapped holes and an instruction plate. The Dismount Nut (bar) (mm) (mm)
contains three sets of drilled and tapped holes located 120° +.00
23134 150 mm 12.0 0.914
-.13
apart.
23136 160 mm 13.0 0.965
23138 170 mm 13.6 1.041 +.00
23140 180 mm 16.6 1.092 -.15
WARNING: Because of the possible danger to person(s) or 23144 200 mm 16.1 1.194
property from accidents which may result from the improper 23148 220 mm 25.8 1.270 +.00
use of products, it is important that correct procedures be 23152 240 mm 29.5 1.372 -.18
followed. Products must be used in accordance with the 23156 260 mm 27.7 1.473
engineering information specified in the catalog. Proper 23160 280 mm 23.8 1.575
installation, maintenance and operation procedures must 23164 300 mm 27.0 1.676 +.00
be observed. The instructions in the instruction manuals -.20
23168 320 mm 30.1 1.803
must be followed. Inspections should be made as necessary
23172 340 mm 30.0 1.905
to assure safe operation under prevailing conditions. Proper
guards and other suitable safety devices or procedures as 23176 360 mm 28.0 1.981
may be desirable or as may be specified in safety codes
should be provided, and are neither provided by Baldor
Electric Company nor are the responsibility of Baldor
Electric Company. 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.
1
DIAL
INDICATOR
MOUNT
NUT
SHAFT
MAGNETIC
BASE
Figure 2 - Magnetic Base Indicator Placement
9. Attach a hydraulic pump to either of the two G1/4 - 19 BSPP 20. Insert lock clip into one of the adapter slots and align with
Fitting hydraulic ports found on the Mount Nut. They contain drilled and tapped lock clip holes located on the face of the
pipe plugs and are located on the face and OD of the nut Dismount Nut. If the holes are not aligned with the adapter
180° apart. slot rotate the Dismount Nut COUNTER CLOCKWISE until
10. Actuate hydraulic pump until Starting Position Pressure the lock clip can be installed.
(Table 1) is attained. 21. Insert and tighten lock clip bolts.
11. Install a magnetic base indicator or displacement gauge. 22. Place the stabilizing ring over Mount Nut.
• Displacement Gauge: Install gauge in hydraulic port on 23. Install the lubricatable auxiliary seals onto the Mount and
face of Mount Nut. Follow instructions included with Dismount Nuts. Ensure all burrs or sharp edges are filed off
gauge for proper installation. the shaft, so that the o-rings in the seals are not damaged.
• Magnetic Base Indicator: Place on the shaft with the Install the Expansion (Float) Bearing
anvil on face of inner unit as shown in Figure 2.
12. Zero the Indicator. 1. Follow the same steps as outlined for the Non-Expansion
13. Actuate hydraulic pump until indicator indicates movement bearing.
as shown in the final position column of Table 1. Periodically 2. Skip Step 22 since the stabilizing ring is not needed.
check the dismount nut to ensure that it is still loose during DISMOUNT PROCEDURE
the mounting process.
1. Remove lock clips from the Mount and Dismount nuts.
NOTE: If hydraulic pressure reaches 345 bar prior to 2. Remove lubricatable auxiliary seal from OD of Mount and
attaining Final Position, abort procedure by releasing Dismount Nuts. Be careful not to damage the two O-rings in
pressure to hydraulic nut. Check to ensure Dismount bore of seal. Remove weight from shaft.
Nut is still loose. If not, rotate it counter clockwise 1 full 3. Scribe a line on the Adapter face and Mount Nut.
rotation and repeat Step 13. 4. Incorporating a spanner or drift and hammer, rotate the
14. Remove Indicator from shaft or displacement gauge from Mount Nut counter clockwise two full rotations. The Mount
mount nut. Nut must remain loose during the dismounting procedure,
15. Release pressure to hydraulic pump and rotate Mount but should never be removed. Without loosening the mount
Nut clockwise until snug. This forces the hydraulic fluid nut, the mount nut piston will make contact with the bearing
back into the pump. Failure to complete this step may unit as it travels down the adapter. (See Figure 3) This will not
result in the locknut loosening during operation after it allow the bearing to move down the adapter and loosen from
is tightened. the shaft properly.
16. Remove hydraulic attachment from Mount Nut and insert 5. Using a spanner or barring rod, rotate the Dismount Nut
supplied pipe plug. clockwise until snug. This allows the dismount nut piston
17. Using a spanner or drift and hammer, drive the Mount Nut to be in full contact with the bearing unit so that when the
clockwise until the lock clip can be inserted into one of the dismount nut is pressurized with hydraulic fluid, the piston
adapter slots and aligned with the drilled and tapped lock will push the bearing unit down the adapter and properly
clip holes. loosen from the shaft.
6. Attach the hydraulic pump to either of two supplied G1/4 - 19
NOTE: Always tighten, never loosen, the Mount Nut. BSPP hydraulic ports found on Dismount Nut. The hydraulic
18. Insert lock clip and tighten lock clip bolts. ports contain pipe plugs and are located on the face and OD
19. Using a barring rod, rotate Dismount Nut clockwise until of the nut 180° apart.
snug.
2
Non-Expansion Spacer
Inner Unit Pillow Block Housing
Auxilliary Auxilliary
Seal Seal
Triple Lip
Seal
Triple Lip
Seal
Dismount
Nut
Mount Nut
Dismount
Nut Mount Nut
Piston Adapter Piston
Figure 3 - Cross Section
7. Actuate the hydraulic pump until the pressure reading rises LUBRICATION INSTRUCTIONS
for initial break away load then decreases to zero. This will
require repeated actuation of the pump. Once the pressure Kinds of Grease: DODGE ISNX `Unitized Spherical roller
reaches zero, the bearing has been fully dismounted. bearings are prepacked with NLGI #2 lithium complex grease. For
Periodically check the mount nut to ensure that it is loose re-lubrication, select a grease that is compatible with #2 lithium
during the dismounting process. complex. The bearing housing is provided with zerk fittings over
the seal grooves. Upon the initial start-up, when exposed to harsh
NOTE: If hydraulic pressure reaches 345 bar, abort
environments, in the presence of dust, moisture or chemicals, it
procedure by releasing pressure to the hydraulic pump.
is best practice to grease each seal zerk to generate additional
Check to ensure the Mount Nut is still loose. If not, rotate
seal protection in the form of a grease dam. This seal area will
it counter clockwise 1 full rotation and repeat Step 5.
permeate with additional grease as the bearing is routinely
8. Release pressure to the hydraulic pump and rotate Dismount relubricated and the interior seals purge.
Nut in the clockwise position until snug. This forces the
hydraulic fluid back into the pump. Special Operating Conditions: Refer acid, chemical, extreme
or other special operating conditions to Baldor Electric Company,
Dodge engineering in Greenville, SC.
3
Table 2 - Lubrication Guide in Months CHECK FOR ALIGNMENT
Bore 1-250 251-500 501-750
751-1000 rpm Alignment is critical for the Hydraulic ISNX bearing. The bearing
(mm) rpm rpm rpm
has a misalignment capability of +/- ½°. Exceeding this value
will cause the lubricatable auxiliary seal to interfere with the
150 - 180 mm 1 0.5 0.5 0.25 pillow block housing. Alignment of these bearings is a simple
200 - 240 mm 1 1 0.5 --- procedure. Using the same magnetic base dial indicator used in
mounting the bearing, place the magnetic side on the shaft. Place
260 - 320 mm 1 0.5 --- ---
the probe on the machined flat of the pillow block housing right
340 - 360 mm 0.5 0.25 --- --- above the lubricatable auxiliary seal at the 12 o’clock position.
Based on 12 hours/day, 150°F Max. Zero out the indicator and rotate the shaft so that the probe
Continuous operation, 24 h/d, decrease by 50%. is now at the 6 o’clock position. Record the readings from dial
indicator. If the value is less than the value on Table 4, the bearing
is aligned in the 12 to 6 o’clock position. Do the same procedure
Table 3 - Cap Bolt Torque for the 3 to 9 o’clock positions. If the reading is outside of the
Shaft Diameter (in) Cap Bolt Size Torque (ft-lbs) allowable misalignment, additional adjustment is needed on the
housing. If the alignment is off in the 12 to 6 o’clock, make sure
150 mm M20 440
the base that the bearing is mounted on is flat and free from any
160 mm M20 440 debris. Shims can be used, if needed, to assist with the flatness.
170 mm M20 440 If the bearing is misaligned in the 3 to 9 o’clock positions, tapping
on the pillow block in the correct direction will align the housing.
180 mm M24 765
After realigning the pillow block, sweep the face of the housing
200 mm M24 765 again in the same 12 to 6 o’clock and 3 to 9 o’clock positions to
220 mm M24 765 ensure alignment.
240 mm M30 1520
Table 4
260 mm M30 1520
H-ISNX Maximum Misalignment Capability
280 mm M30 1520
Bore Size (mm) Housing Series ½° Misalignment*
300 mm M30 1520
150 3134 2.1
320 mm M36 2650
160 3136 2.2
340 mm M36 2650
170 3138 2.3
360 mm M36 2650
180 3140 2.4
200 3144 2.6
220 3148 2.6
240 3152 2.7
260 3156 3.0
280 3160 3.3
300 3164 3.5
320 3168 3.6
340 3172 3.9
360 3176 4.0
* The difference in mm between the depth micrometer and dial indicator
measurements need to fall within these values to be aligned.
P.O. Box 2400, Fort Smith, AR 72902-2400 U.S.A., Ph: (1) 479.646.4711, Fax (1) 479.648.5792, International Fax (1) 479.648.5895
Dodge Product Support
6040 Ponders Court, Greenville, SC 29615-4617 U.S.A., Ph: (1) 864.297.4800, Fax: (1) 864.281.2433
www.baldor.com
© Baldor Electric Company All Rights Reserved. Printed in USA.
MN3084 03/15
*3084-0315*
