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74 Effective Length (mm) 730 Notched false Outside Circumference (in) 28
76 Effective Length (mm) 375 Notched false Outside Circumference (in) 15 Outside Circumference (mm) 381 Section 5MJB Strand 4 Top Width (in) 0
HTD Timing Belts 3M Timing Belt Part Number (Length-Profile-Width) 639-3M-20 Pitch (mm) 3 hs (mm) 2
22 Teeth 120 Pitch Length (mm) 360 Width (mm) 19 Weight (lbs) 0
Bestorq 12/D420 Banded Wrapped Belts V-Belt 74 Effective Length (mm) 730Banded Wrapped Belts Banded D V Belt Part Number 12 D420 Top Width Band(in.) 1. 25 Top Width Total(in.) 17. 063 Thickness (in.) . 98 Bands 12 Inside Circumference (in.) 420 Approximate Outside Circumference (in.) 422. 7 Weight (lbs) 232. 344
