Stacker, Shiploader, Hopper Feeder, Bucket Wheel Reclaimer Manufacturer

Conveyor Pulley Terminology Definition

Pulley/Core Diameter

The outside diameter of the cylindrical body of a conveyor pulley, without coating.

Finish Diameter

The outside diameter of a coated pulley (core diameter + 2 times the coating/wrap thickness).

Face Width

The length of a pulley’s cylindrical body. This area is intended to act as the contact surface for the conveyor belt.

Wall/Rim Thickness

The initial thickness of the tube, pipe, or formed plate that makes up the cylindrical body of the pulley.

End Disks

The plates welded on the ends of a pulley which act as the medium between the hub and rim.


A change in the shape of the pulley face designed for the purpose of enhancing belt tracking.


The mounting mechanism for the pulley assembly.


The point of connection between the shaft and end disk or pulley wall.

Bore Diameter

The inner diameter of a pulley at the point where the shaft is inserted

Bearing Centers

The distance between the center lines of each bearing race in which a pulley is mounted.

Hub Centers

The distance between the center line of each hub contact surface.

Safety Factor

The capacity of a system or component to perform beyond its expected load.

Related Articles

What Are The Types of Belt Conveyor Pulleys? What is face length of conveyor pulley?

Conveyors Catalogs

Contact Now

Email WhatsApp Quote