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THREADED HOLES

USED FOR REMOVING

BUSHING

TAPER-LOCK

BUSHING DETAIL

3

A. Assembly

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.

Figure 1A

Figure 1B

SET SCREW TORQUE VALUES

B. Disassembly

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

the wheel.

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.

Figure 2

WHEEL and INLET

CONE OVERLAP

VALUES

1/4

5/16

3/8

7/16

1/2

5/8

3/4

20

18

16

14

13

11

10

65.5

136.0

239.0

381.0

586.0

1163.0

2076.0

Bolt

Size

(In. Dia.)

Threads

Per

Inch

Steel Grade 2

Non-Plated

(Inch-lbs.)

Q & R

P

57

36

120

84

108

72

240

132

228

132

Size

Bushing Alum.

Steel

Alum.

Steel

Initial Torque*

Second Torque*

348

192

Alum.

Steel

Final Torque*

* 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

bearing pedestal.

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

step 11.

c. Bolt bearings to pedestals. Shaft must be parallel with side of

bearing pedestal.

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-

temp setting.

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