Define pulley, bush and shaft together
The product row identifies the bush designation; the RFQ should identify the actual shaft diameter and keyway. The maximum bore line is a model limit, not a finished bore.
Record the installed bush marking before removal when possible and include guard or service-clearance constraints when a direct replacement has limited space.
Selection checklist
Pulley model
Full SPA model and groove count.
Bush designation
Published or installed taper-bush marking.
Shaft data
Actual shaft, keyway and any controlled fit requirement.
