(MXL..XH) Stock Pre-Bored

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)

MXL Pitch (0.80 inch)

XL Pitch (1/5 inch)

L Pitch (3/8 inch)

H Pitch (1/2 inch)

XH Pitch (7/8 inch)

XXH (1-1/4 inch)

Part Number Example:

42H075.1-1/2

42 = No. Teeth

H = 1/2 inch Pitch

075 = 0.75 Inch Belt Width

1-1/2 = 1.5 inch Bore with Standard Keyway and two Setscrews if Hub Type

PDF - PulleyTimingAmericanStandardMXL-XHBoredToSize.pdf