STOBER Drives Inc. • Form No. 442758 • www.stober.com • 1781 Downing Drive • Maysville, KY 41056 • 606-759-5090 • sales@stober.com

MGS®/Servo Gear Units

Hollow Output (F, K, KL, KSS)

STOBER reducers with a hollow output can be

mounted to the equipment sha from either side.

Tolerances for the hollow bore are shown in Table

1. Be sure to tolerance the equipment sha to t

accordingly.

Table 1 Bore Tolerance (F, K, KL, KSS, S)

STOBER hollow output reducers ulize a keeper

plate to prevent axial movement of the unit on

the equipment sha. The keeper plate is held in

place with snap rings. Each keeper plate has a

spring pin to prevent it from rotang inside the

bore. The keeper plate is also drilled and tapped

Step 1 Drill and tap equipment sha.

equipment sha a minimum one size smaller than

the tap in the keeper plate. If the keeper plate is

drilled for a 1/2" removal bolt, we recommend a

3/8" bolt for securing to equipment sha.

Important: The machine sha length should not

be longer than the “le” dimension, Table 2. A sha

length of "le minus 0.125" will allow the sha

shoulder to pull against the face of the bore of the

reducer.

Step 2 Install the keeper plate.

Le: Installed keeper plate with snap ring viewed

from outboard side of unit; Right: Keeper plate

looking through equipment sha entry side. Note

spring pin aligned in keyway. (When installed, the

equipment sha will bu up to the keeper plate.)

Step 3 Mount onto equipment sha.

Slide reducer onto equipment sha. Insert the

mounng bolt through the keeper plate and into

the threaded sha end.

To dismantle the STOBER unit from the equipment

the unit. (Removal of the reducer will be easier if

the hollow output is greased before installaon.)

For parts breakdown on a specic reducer, use our

web site or call at 606.759.5090.