BlackStar 120R30 - 120 Pitch R Sprocket - 30 Tooth LUS Section The B104 is used for

The B104 is used for general-purpose industrial drives

com/products/diesel-belting-300j27-micro-v-micro-v-belt"

Bore Size 2-1/4" Housing Style 2-Bolt Pillow Block Insert Series UC Shaft Attachment Set Screw Housing Material Cast Iron Bearing Type Ball Bearing Dynamic Load Rating 10

The XPA1060 is used for hvac blowers and air handlers

BlackStar 120R30 - 120 Pitch R Sprocket - 30 Tooth LUS Section The B104 is used forThe BlackStar 120R30 is a 120 pitch R roller chain sprocket with 30 teeth, precision manufactured from SAE 1045 steel and features machine cut tooth profiles for smooth, reliable chain engagement. Requires a Split Taper Bushing (sold separately). Specifications Part Number 120R30 Chain Pitch 120 Number of Teeth 30 Bore Type Plain Bore Hub Style R Strand Count Single Material Steel Outside Diameter 15. 17" Pitch Diameter 14. 351" Approx. Weight 43. 300