Turner SER Series Bearing Insert - 1-1/4" Bore 3.7/8" The C73 has a 7/8"

The C73 has a 7/8" width

"price":"291

Dayco 8/B53

com/products/d-and-d-1560h1496-timing-belt"

so a 250-S8M-400 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

Turner SER Series Bearing Insert - 1-1/4" Bore 3.7/8" The C73 has a 7/8"The Turner SER207 20 is a SER series ball bearing insert with a 1 1 4" bore and set screw locking. Designed for use in standard mounted bearing housings. Product Specifications Bore Size 1 1 4" Insert Series SER Shaft Attachment Set Screw Bearing Type Ball Bearing Dynamic Load Rating 5,775 lbs Static Load Rating 3,498 lbs Limiting Speed 4500 RPM Duty Level Normal Part Number SER207 20 Series Specifications