3M Pitch

Stock Pre-Bored with Standard Keyway

A stocked pre-Bored Pulley includes a Standard Bore to h8 Tolerance Plus (if a hub) a Standard Keyway and two standard set screw over keyway and at 90º (Unless indicated differently)

If a standard bore size is not in stock the cost to Bore Keyway and setscrew is $110 (large heavy pulley may be slightly more)

Part Number Example:

3M20x6.5

20 = No. Teeth

3M = 3 mm Pitch

M = HTD Tooth

6 = 6 mm Belt Width

5 = 5 mm Bore with Standard Keyway and two Setscrews if Hub Type

PDF - PulleyTimingHTDBoredToSize.pdf