what design is sp belt
Power Transmission Belt Design. Composite construction with three different material traction layers coated with NBR rubber (partly with Hamid or leather), with different structures on both surface sides, in asymmetric and symmetric styles. Asymmetrically built: A flat belts, partly TF and TCF series. Symmetrically built: Flat and tangential belts S, SP, CM, TC, partly TF series. Three different belt concepts: Polyester traction layer â outstanding price-to-value ratio. Polyamide traction layer â reliable and robust in harsh conditions. Aramide traction layer â the best choice for very long belts.