V-Belt "ABC" types, such as A, B, and C, refer to standard classical industrial V-belts distinguished by their top width and height, which determine their power transmission capacity and application. For example, A-type belts are 13mm wide, B-type are 17mm, and C-type are 22mm. These belts are typically wrapped in a rubberized fabric cover for protection and feature a tensile cord section for power transmission and a compression section to maintain pressure on the pulley.

SK, SPZ, SPA, & M TYPE all refer to types of V-belts, a type of power transmission belt used to connect grooved pulleys. SPZ belts are narrow and suited for light-duty tasks, while SPA belts are medium-sized for applications like pumps and compressors. The SK and M TYPE references are less common in standard V-belt nomenclature; SK might refer to a specific drive system or component, and M TYPE could refer to a molded or generalpurpose class of belts, though this is less standardized.

XPZ, XPA, XPB, and XPC are designations for cogged metric V-belts (or narrow cogged V-belts) standardized by ISO 4184 and RMA, which differ in their cross-sectional size and power capacity. The letters denote increasing power and size, with XPZ being the smallest, followed by XPA, XPB, and XPC as the largest. These belts are used in high-power industrial applications like agricultural machinery, construction, and manufacturing, and they offer advantages such as higher efficiency, reduced slip, and better heat resistance compared to traditional wrapped belts.