The TB28-8M-30 typically refers to a 28-tooth, 8mm pitch HTD timing pulley designed for a 30mm wide belt. Note that the prefix "TB" often designates a Taper Bore (using a taper bush like size 1210).Key Dimensions
- Number of Teeth: 28
- Pitch: (8M): 8 mm
- Belt Width Capacity: 30 mm
- Outside Diameter (OD): 70.08 mm
- Pitch Diameter (PD): 71.30 mm