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belts and
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Technical Information about Belt Materials

Knowledge of belt materials – their physical and chemical properties, durability – is a very important prerequisite in selecting a suitable belt to be applied to machine devices. Modern belts are made from special materials and reinforced fibres, which give them the necessary properties and durabilty.

Basic materials used in belt manufacturing:

  • compound rubber or polyurethane (according to belt type)
  • reinforced fibres
  • woven fabric

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Basic materials in the manufacture of power transmission belts are natural rubber or a blend of synthetic rubbers.

Applications of natural and synthetic rubber: vehicle tires, hoses, belts and conveyor belts, sealants, gaskets, rings, elastic inserts, bags, helmets, etc.

Basic materials – technical name: Common name:
Natural rubber NR, NK
Acrylonitrile Butadiene NBR, HNBR
Polychloroprene CR
Etylene Propylene Diene Monomer EPDM, EPM
Epichlorohydrin ECO
Polybutadiene BR
Styrene Butadiene SBR
Hydrogenated Nitrile Butadiene HNBR
Polyacrylate ACM
Silicone MQ, MVQ
Fluorosilicone MFQ
Polyester Urethane AU
Fluorocarbon, Fluoronated Hydrocarbon FPM, FKM
Isobutylene Isoprene Butyl IIR