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Figure 1-5
1.5 Mounting Conguration with Bushing on Load
Side of Reducer and without Stabilizer Ring
1.5.1 For Type 1 bushings which require an external key and
a shaft key: Install the key (supplied with the bushing) in the
external keyseat of the bushing as shown in Figure 1-1. Install
the shaft key (not supplied) in the shaft keyseat and retain to
prevent movement. Install the bushing onto the shaft, anged
end rst, align the bushing keyway with the shaft key and position
the bushing over the key.
Note: Key length must be sufcient to engage the full length
of the bushing. The shaft must engage the full length of the
bushing.
1.5.2 For Type 2 bushings which require one through key:
Install the bushing on the shaft, anged end rst. Align the
keyway in the bushing with the keyseat in the shaft and install the
shaft key. Position the shaft key ush against the inside ange
surface of the bushing. See Figure 1-2 Shaft Key and Bushing
Location.
Note: There are three (3) series of bushing keys used in the
Type 2 bushing system: rectangular, square and offset. In
most cases, the key supplied will be rectangular or offset. Use
caution when installing rectangular keys as some may visually
appear square. The key should install in the bushing keyway
with a sliding type t. The key in the driven shaft keyseat
should be retained to prevent movement.
Note: The shaft must be engaged the full length of the
bushing.
1.5.3 On the side opposite the driven shaft entry, thread the
bushing ring onto the hollow quill until the bushing ring is ush
with the end of the hollow shaft. Rotate the gear unit input to align
the keyway in the hollow quill with the bushing/shaft key. Position
the reducer on the shaft with the bushing ring toward the bushing.
1.5.4 Thread the end cap and the dirt cover (not used if driven
shaft extends beyond the end of the hollow quill) onto the
hollow quill until it bottoms out. Tighten the setscrew to the
recommended torque. See bolt torque specications Table 1.2.5.
1.5.5 Rotate the bushing ring clockwise until the tapped
holes align with the drilled holes in the bushing ange. Prior to
tightening the cap screws, make sure the bushing key is as close
as possible to the inside ange of the bushing as shown in Figure
1-2 and the bushing is positioned on the shaft as required in
Table 1-5. Dimensions for rear mounting conguration with the
stabilizer ring.
1.5.6 Install the bushing cap screws and tighten all the cap screws
evenly around the bushing ange to the required torque. See bolt
torque specications Table 1.2.5.
WARNING! The cap screws must thread into the bushing ring and
not the bushing. Threaded holes in the bushing are for removal
only. If assembled incorrectly, equipment failure and personal
injury may result.
Driven
Shaft Keyseat
MC
H
K
Endcap
Table 1-5 Dimensions for Conguration with bushing
on Load Side and no Stabilizer Ring
Gear
Frame
Bolt
Clearance
Minimum Shaft
Mounting
Length
Minimum Key
Connection
Length
MC H K
31 1.50 4.38 2.88
32 1.88 6.25 4.38
33 1.88 6.25 4.38
33A 1.88 6.50 4.63
34 1.88 6.5 4.63
35 1.88 7.5 5.63
36 1.88 8 6.13
37 2.25 9.75 7.38
38 2.75 11.31 7.38