D&D Global 268K10 Micro-V Serpentine Belt - K Section, 10 Ribs, 268mm HK Section What does the S5M in

What does the S5M in 250-S5M-1050 mean

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The Gates PB14MXL025 PowerGrip Timing Pulleys is a synchronous timing belt with MXL-pitch profile

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D&D Global 268K10 Micro-V Serpentine Belt - K Section, 10 Ribs, 268mm HK Section What does the S5M inThe D&D Global 268K10 is a Micro V (multi ribbed) belt with Micro V ribbed K section dimensions, manufactured by D&D Global. Micro V belts deliver smooth, quiet operation with high power capacity in a compact cross section, ideal for serpentine and multi accessory drive systems. Constructed with Neoprene body compound and aramid (kevlar) tensile members for reliable power transmission and long service life. Specifications Belt Section K Belt Type