306 / 360
2015 Power Transmission Products
Bushing Hardware
125
All bushing 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 foot on the diameter),
which is about half the inclined angle of many other bushings.
The result is that 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 interchange ability extends through sheaves, pulleys, timing
pulleys, sprockets, flexible and rigid couplings, made-to-order
items by Continental ContiTech and 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.
Available Sizes
Bushings
Easy to Install and Remove
Sure-Grip®* “Quick Detachable” bushings are split
through flange and taper to provide a true clamp on
the shaft that is the equivalent of a shrink fit.
Sure-Grip® Bushings
(Millimeter Bores-in. Bolt)
QT
SF
P
JA
E
SKL
SH
F
SFL
SDS
J
EL
SD
M
SK
N
Metric Sure-Grip® Bushings
QTMX
SDSMX
SFMX
JAMX
SDMX
EMX
SHMX
SKMX
FMX
Metric “L” Series Flangeless Bushings
SKLMX
ELMX
FLMX
SFLMX
“L” Series Flangeless Bushings
EL
SKL
SFL
FL
Sure-Grip® Idler Bushings & Replacement Bearings
SH-BB
SK-BB
E-BB
SD-BB
SF-BB
Sure-Grip® Short Bushings
JS
NS
WS
MS
PS
*Trademark of TB Wood’s Incorporated.
Keyseat 180°
from split.
Cap screws used to secure bushings
to sheave and remove bushing from sheave.
Saw cut
through flange
and taper (and
sometimes
cut down into
keyway also)
to provide a
true clamp fit.
Precise taper (3⁄4 in.
per foot on diameter)
provides proper
wedging action.
6-hole drilling
(most sizes) makes
installation and removal
quick and easy.
Sure-Grip® Bushings
QT*
SF
N
JA
E
P
SH
F
W
SDS
J
S
SK
M
*“H” is a Split Taper Bushing. “QT” is a QD® Bushing and is interchangeable with an
“H” bushing.