BlackStar J 55MM - QD Bushing - 55MM" Bore Poly Chain GT Sprockets Stainless "name": "What does the H

"name": "What does the H in 305H1770 mean

Pitch Profile 5M Pitch 5 mm Tooth Profile Curved (HTD) Tooth Location Single Side Number of Teeth 85 Width 15mm Length 425 mm Material Neoprene Reinforcement Fiberglass Cord Color Black Temperature Range -30°F to 185°F

Belt Section C Sub-Type Standard Width 7/8" Thickness 17/32" Length 130 in Material Neoprene Reinforcement Aramid (Kevlar) Color Black Temperature Range -30°F to 185°F

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so a 2/BX63 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves

BlackStar J 55MM - QD Bushing - 55MM" Bore Poly Chain GT Sprockets Stainless "name": "What does the HThe BlackStar J 55MM is a J series qd bushing with a 55MM" finished bore, precision manufactured from high grade steel. QD (Quick Disconnect) bushings feature a split taper design that allows fast, easy installation and removal without disturbing other drive components. Specifications Part Number J 55MM Bushing Type QD Series J Bore Size 55MM" Minimum Bore 1" Maximum Bore 3 3 4" Outside Diameter 5. 148" Length 4 1 2" Material Steel Approx. Weight 18.