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Power Transmission Belt Size List
V-Belt Sizes Timing Belt Sizes



Trapezoidal Timing Belts Part Number (Length-Profile-Width) Pitch (in.) hs (in.) ht (in.) Teeth Pitch Length (in.) Width (in.)
MXL Timing Belt MXL .080 .045 .020 63 5.00 0.10
XL Timing Belt XL .200 .090 .050 30 6.00 0.13
L Timing Belt L .375 .140 .075 18 6.70 0.10
H Timing Belt H .500 .160 .090 40 20.00 0.19
XH Timing Belt XH .875 .440 .250 58 50.70 0.75



HTD Timing Belts Part Number (Length-Profile-Width) Pitch (mm) hs (mm) ht (mm) Teeth Pitch Length (mm) Width (mm)
3M Timing Belt 3M 3 2.4 1.22 43 129 3
5M Timing Belt 5M 5 3.8 2.08 36 180 4
8M Timing Belt 8M 8 6.0 3.38 44 352 5
14M Timing Belt 14M 14 10 6.02 69 966 20



Dual Trapezoidal Timing Belts Part Number (Length-Profile-Width) Pitch (in.) Teeth Pitch Length (in.) Width (in.)
Dual H Timing Belt D H .500 60 30.00 0.35
Dual L Timing Belt D L .375 54 20.30 0.10



Dual HTD Timing Belts Part Number (Length-Profile-Width) Pitch (mm) Teeth Pitch Length (mm) Width (mm)
Dual 5M Timing Belt D 5M 5 127 635 4
Dual 8M Timing Belt D 8M 8 100 800 10
Dual 14M Timing Belt D 14M 14 100 1400 40




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Product Application Advisory! Do not use Bestorq products on aircraft propeller or rotor drive systems or in-flight accessory drives or man lift elevators or man lifts. Bestorq products are not designed or intended for such use.
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