BlackStar FCS 3 7/16 - Hub - 3 7/16" Bore Series-XTB20 What does the 5M in

What does the 5M in 360-5M-25 mean

What is 150-S8M-712 used for

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"name":"Gates 11/C105 Hi-Power II PowerBand V-Belts 909411105"

com/products/d-and-d-15-5v830-v-belt"

BlackStar FCS 3 7/16 - Hub - 3 7/16" Bore Series-XTB20 What does the 5M inThe BlackStar FCS 3 7 16 is a hub, manufactured from steel. Features a 3 7 16" bore for direct shaft mounting. Industrial grade hub component for power transmission applications including custom drive assemblies, coupling refurbishment, and equipment retrofits. Specifications Part Number FCS 3 7 16 Product Type Hub Bore Size 3 7 16" Material Steel Approx. Weight 35. 0 lbs Cross references: Browning FCS 3 7 16, Martin FCS 3 7 16