USED FOR REMOVING
Check bushing to verify type or refer to the bushing box shipped
with the wheel.
To reinstall the taper-lock bushing in the wheel hub, clean bushing,
hub and shaft of all oil, lacquer, grease or dirt. Orient bushing to
align the match marks and insert the three mounting bolts through
the unthreaded bushing holes into the hub. Alternately tighten the
bolts. Do not use oil or other lubricants in bushing or hub.
When tightening, the bolts should be turned down equally to the
Initial Torque requirement given below. Then tighten the bolts pro-
gressively to the Second Torque setting. Finally, the bolts should be
tightened in small increments to the Final Torque settings below.
SET SCREW TORQUE VALUES
1. Match mark the bushing and the hub so they can be reinstalled in
exactly the same relative position to insure the balance integrity of
2. Remove all bolts from the bushing.
3. Insert two bolts in the threaded holes in the bushing. See bushing/
wheel detail in Figure 2b. (Note that one bolt is left over and not
used in demounting.)
4. Tighten bolts alternately until bushing is loosened in hub. If the
bushing does not loosen immediately, lightly tap hub while apply-
ing torque to the bolts.
5. See Step A. above for assembly.
Straight Bore Assembly
Tighten all set screws over the
keyway first, then tighten all set
screws which are located 90°
to 120° from the keyway. Torque
all set screws per the chart.
Bushed Bore Assembly
Changing of the busing can ad-
versely affect the balance of a
wheel. If the bushing is changed
for any reason be sure to recheck
balance of the wheel prior to
putting the unit back into service.
WHEEL and INLET
Steel Grade 2
Q & R
* Torque values shown are inch lbs. and apply when both components are
either aluminum or steel. If either component is aluminum, use values for
aluminum. Values for steel are for Grade 5 hardware.
this time. The bearing housing should be perpendicular and the
bearing base parallel to the axis of the shaft to prevent misalign-
ment loads. Continue to Step 11.
d. Bolt bearings to pedestals. Shaft must be parallel with side of
9. Arrangement 3
a. Parts on DIDW unit are assembled in the following order as
viewed from opposite drive side: Opposite inlet cone, bearing bar
assembly and opposite bearing (housing side),wheel/shaft (hous-
ing side), drive inlet cone, drive side bearing bar assembly, drive
bearing and sheaves. Mount bearing bar assembly to housing.
Center the wheel in inlet cones axially and maintain equal radial
clearance between wheel and cones.
b. Parts on SISW are assembled in the following order as viewed
from opposite drive side: Bearing bar assembly and opposite
bearing (inlet housing side), wheel/shaft (drive housing side),
inlet cone, drive side bearing bar assembly, drive bearing and
sheaves. Mount bearing bar assembly to housing. Continue to
c. Bolt bearings to pedestals. Shaft must be parallel with side of
10. Arrangement 4
a. Mount and loosely bolt motor on pedestal or structure. Mount
wheel on shaft loosely and install inlet cone. Continue to step 12.
11. After aligning and bolting to pedestal, tighten bearing set screws.
Make sure bearing locking collar is in position and set screws are
tightened to the bearing manufacturer's recommended torque
levels indicated by the manufacturer, but recheck. If grease is re-
quired, use the grease recommended in bearing instruction manual.
12. Identify the wheel as a straight bore or a bushed bore. See Figure
1 showing both straight and bushed hub types. Position wheel on
shaft to properly set the wheel to cone fit (see Figure 2, Wheel to
Inlet Cone Overlap). A special non-standard gap may be required
for high temperature applications; refer to factory for proper high-
13. Tighten/torque all remaining hardware at this time.
14. Check the motor wiring and fusing in accordance with the National
Electrical Code and local requirements. Follow wiring diagram on
the motor nameplates or conduit boxes.
15. Check motor bearing lubrication. Motors were lubricated by the
manufacturer, but recheck. If grease is required, use the grease
recommended in the motor instruction manual.
STRAIGHT BORE HUB DETAIL