Wire Rope Sheaves
A – Outside Diameter
F – Pitch Circle Diameter (PCD)
C – Rim Width
E – Bore for Centre pin or axle
D – Hub Width
G – Hub Diameter
Types of Bushing
Plain Bore Sheaves can be used for very low line speeds and very infrequent use (high bearing friction).
Self Lubricating Bronze Bushings for slow line speeds and infrequent use (moderate bearing friction). Bronze Bushing with pressure lubrication for slow line speeds, and more frequent use at greater loads (moderate bearing friction). Our Bronze Bushings are machined with oil grooves.
Taper Roller Bearings
Taper Roller Bearings are required for faster line speeds and more frequent use at greater loads.
Double Row Cylindrical Roller Bearings
These are specially designed for sheave applications having good load bearing ratings and stability. Other Anti friction bearings such as tapered roller bearings and deep groove ball bearings can be supplied.
PTFE Lined Bushes
These bearings have a high load capacity (140 Mpa) and low wear rates as well as excellent lubricating properties. The bearings have a composite structure consisting of epoxy encapsulated wound glass fibres impregnated with PTFE. They can be used at surface velocities to 500 Sfpm (2.5 m/s). Other bearing types can also be supplied where required.