ANSIMAG K+1516 - Shaft Assembly and Frame Insertion

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3. Use an arbor press and wide flat
arbor (necessary to distribute
the load over the entire face) to
install the labyrinth seal into the
bearing frame housing cavity,
facing the pump side. Insert the
smaller diameter of the seal into
the cavity. Press it in only as
far as the first step will allow
and avoid angular
misalignment. Discard any
residual material from the outer
O-ring.
Fig. 12-16: Install Labyrinth
Seal into Cavity
Fig. 12-17: Labyrinth Seal
in Cavity
4. To assemble the shaft assembly, be aware
that the bearing with the lock ring is
installed on the motor side. Place the
bearing with the lock ring facing down,
trying to avoid any angular misalignment
and insert the shaft with the longer key-way
first until the shaft bottoms out in the
bearing. Place the other bearing on the
other end of the shaft and press the shaft in
until the shaft shoulder bottoms out against
the bearing inner race.
Fig. 12-18: Shaft Assembly
5. To press the shaft assembly into
the bearing frame carefully stand
the bearing frame upright on the
pump side end. Lightly lubricate
the first step on both sides of the
shaft to allow it to slide through
the labyrinth seal bore. Drop in
the carbon steel wave washer as
shown in the drawing. Insert the
shaft assembly (with the shortest
key-way first) by aligning the
bearing with the bearing seat and
lightly tapping the end of the
shaft with a brass hammer until
the shaft assembly bottoms out in
the bearing seat.
Fig. 12-19: Insert Shaft
Assembly into Bearing
Frame
Fig. 12-20: Tap Shaft
Assembly into Place
Lock Ring
-Bearings-
Pump
Side
Shaft
Motor Side