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Minimum Plain Bore
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
42 = No. Teeth
H = 1/2 inch Pitch
075 = 0.75 Inch Belt Width
PDF - Pulley-Timing-AmericanStandardMXL-XHMinimumPlainBore.pdf