The pulley hub is a point of connection between the shaft and the end disk or pulley wall and the bushing is a cylindrical lining designed to minimize friction and wear inside a hole. Types of pulley hubs and bushing used in bulk material handling are provided below.
| Type | Description | |
|---|---|---|
| Flanged Systems | Tapered flanges which insert into the pulley end disk , the flanges are then bolted ( tapped end disk ) into the pulley end disk. | |
| Flanged system with a shallow taper angle. | Used as friction connections. | |
| Flangeless Bushing | These bushing are installed with cap screws, using shallow taper angles. The cap screws engage into treaded holes on the hub. | |
| Keyless locking assemblies | Tapered locking assemblies make use of cap screws tightening into a 2 tapered lock rings these connect the shaft to the hub of the pulley. |
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