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SURE-GRIP BUSHING FEATURES
A1–2
Sure-Grip
®
“Quick Detachable” bushings are easy to install
and remove. They are split through flange and taper to provide a
true clamp on the shaft that is the equivalent of a shrink fit. All
sizes except JA and QT have a setscrew over the key to help
maintain the bushing’s position on the shaft until the cap screws
are securely tightened. Sure-Grip bushings have a very gradual
taper (3/4-inch taper per ft. on the diameter) which is about half
the inclined angle of many other bushings. The result is the
Sure-Grip securely clamps the shaft, with twice the force of
those competitive bushings, to provide extreme holding power.
Versatile Sure-Grip bushings permit the mounting of the same
mating part on shafts of different diameters, and the mounting
of different sheaves on the same shaft using the same bushing.
Their interchangeability extends through sheaves, pulleys,
timing pulleys, sprockets, flexible and rigid couplings, made-to-
order items by Wood’s, and to product lines of several other
mechanical power transmission manufacturers.
Sure-Grip bushings are manufactured with the drilled and
tapped holes located at a precise distance from the keyseat;
thus, a wide mating part having a bushing in each end can be
mounted on a common shaft with the two keyways in line. This
feature not only facilitates installation but also permits both
bushings to carry an equal share of the load.
STANDARD MOUNTING REVERSE MOUNTING
1.
Cap screws from outside
through drilled holes in
the mating part and into
threaded holes in the
bushing flange located on
the inside of the assembly.
Or the complete assembly
reversed on the shaft and;
2. Cap screws from inside
through drilled holes in
the mating part and into
threaded holes in the
bushing flange located on
the outside of the assembly.
3. Cap screws from inside
through drilled holes in the
bushing flange located on
the inside of the assembly
and into threaded holes in
the mating part.
4. Cap screws from outside
through drilled holes in the
bushing flange located on
the outside of the assembly
and into threaded holes in
the mating part.
Cap screws used to
secure bushings to
sheave and to remove
bushing from sheave.
6-hole drilling (most sizes)
makes installation and
removal quick
and easy.
Keyseat 180°
from split.
Precise taper (3/4 in. per ft. on diameter)
provides proper wedging action.
Saw cut through flange and
taper (and sometimes cut
down into keyway also) to
provide a true clamp fit.