Brochure

Mtd. Ball
Bearings
G-252
®
Mounted Ball Bearing Engineering Section
Sealmaster Material Handling Mounted Ball Bearing Housed Units continued
Step 6: Tighten Locking Mechanism
a. Setscrew Locking Inserts
Setscrews in multiple bearing applications should be aligned
as shown.
Tighten bearing units to the shaft as follows:
i. Torque the rst setscrew “A” to one half of the
recommended torque in Table 2.
ii. Torque the second setscrew “B” to the full
recommended torque. Go back to the rst setscrew
“A” and tighten to the full recommended torque.
If the bearing unit has setscrew locking on both sides of the
inner ring (Double Lock Setscrew), repeat the same proce-
dure for the second pair of setscrews. Check shaft again for
freedom of rotation and then tighten the second bearing unit
in the same fashion. When all bearings are tightened, perform
a nal check to the shaft for freedom of rotation.
b. Skwezloc Locking Inserts
i. Be sure that the Skwezloc collar is tted square and snug
against the shoulder on the inner ring as shown.
ii. Torque the Skwezloc collar cap screw to the full recom-
mended torque in Table 3.
Check shaft again for freedom of rotation and then tighten
the second bearing unit in the same fashion. When all bear-
ings are tightened, perform a nal check to the shaft for
freedom of rotation.
Step 7: End Cover Installation
Position the cap so it is ush with the housing, and align the
removal nub in the 12 o’clock position. Press evenly on end of
cap by hand to install in the machined housing groove.
Push Locking Collar Tightly
Against Inner Ring Shoulder
SM MH Table 2
Setscrew Torque
Screw Size Hex Size Inch-Pounds
1/4-28 1/8 65 - 85
5/16-24 5/32 125 - 165
3/8-24 3/16 230 - 300
SM MH Table 3
Skwezloc Concentric Locking Collar Cap
Screw Torque
Screw Size Torx Size Inch-Pounds
# 8-32 T-25 70
# 10-24 T-27 100
1/4-20 T-30 240