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•
Install the bolts for the bearing flanges. Make sure the
bearing is straight within the bearing flanges. Tighten
the bolts evenly.
•
Put the locking collar on the shaft. Push the locking
collar against the bearing inner race. Rotate the
locking collar in the direction of normal shaft rotation
until tightly engaged. Tighten the locking collar by
hitting with a drift punch inserted in the drift pin hole.
NOTE: Always tighten the locking collar in the direction of
normal shaft rotation.
•
Tighten the set screw in the locking collar. Use the
following chart for set screw torque.
Set Screw Size
Nm
1/4-20
5/16-18
3/8-16
7/16-14
Gib Key Removal and Installation
FIG. 14: Gib keys (1) are tapered keys with a tang on the
thick end. A gib key is both a locking component and hub
retainer. The hub must have a tapered key way that fits
the gib key. The gib key will lock the hub in position. No
other locking component such as a set screw is needed.
Remove paint from the shaft on both sides of the hub.
Use a pry bar (2) to apply pressure between the gib key
and the hub. While holding pressure on the gib key, drive
the hub away from the gib key by hitting the hub with a
hammer.
FIG. 15: Make a special tool to remove gib keys from
locations with little access. Use a 25 mm (1 inch) wide
chisel and grind the width of the chisel to 16 mm (5/8 inch)
(1). Grind a slot (2) in each side of the head of the chisel.
The slot is used to keep the chisel from slipping.
4283392M1
Ibf in
4.8
78
18
156
31
273
49
428
General Information
1
FIG. 14
1
2
FIG. 15
2
STD-98A02
L97A-0295
01-15
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