1792-8M-20 Timing Belt 6.1/2" What does the XH in

What does the XH in 1400XH300 mean

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1792-8M-20 Timing Belt 6.1/2" What does the XH in1792 8M 20 Timing Belt The 1792 8M 20 is a timing belt from D&D Global's Dura Sync Torque 8M Series line. It transmits power positively with no slip, holding timing between shafts on synchronous drives. Specification Value Part Number 1792 8M 20 Belt Type Timing Belt Tooth Profile 8M HTD (curvilinear) Tooth Pitch 8 mm Number of Teeth 224 Belt Width 20 mm Pitch Length 1792 mm (Pitch Length) Construction Chloroprene (Neoprene), Fiberglass cord, fabric