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Taper-Lock
®
®
Taper-Lock
and QD
installation can damage the bushing and/or the sprocket/sheave.
commonly mounted to a shaft with a tapered bushing that fits a mating tapered bore in the
sprocket/sheave. Bushings are available in numerous bore diameters to accommodate a broad
range of shaft sizes used in industry.
Taper-Lock Bushing Installation and Removal
To Install TAPER-LOCK Type Bushings
1. Clean the shaft, bore of bushing, outside of bushing and the sprocket/sheave hub bore of all
oil, paint and dirt. File away any burrs.
Note: The use of lubricants can cause hub fracture. DO NOT USE LUBRICANTS when
installing tapered bushings.
2. Insert the bushing into the sprocket/sheave hub and align the holes. All of the holes should be
half threaded. The installation holes will be threaded on the sprocket side, but not the bushing
side. The removal holes will be threaded on the bushing side, but not the sprocket side. See
Figure 1 below.
3. "LIGHTLY" oil the bolts and thread them into the half-threaded installation holes indicated
by the white installation holes in Figure 1.
Figure 1 – Taper–Lock Bushing Installation Diagrams
®
Taper-Lock
is a registered trademark of Reliance Electric. QD
17653-8
®
®
and QD
Bushing Installation and Removal
bushing installation is critical to good belt drive performance. Improper
®
is a registered trademark of Emerson Electric.
Volume 53, No. 8
October, 2006
Sprockets/sheaves are
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