An alternator is a generator of electric power in a car and is a major component of the vehicle's charging system. When an engine is running, the alternator charges the battery and supplies additional electric power for the vehicle electrical systems. To drive the engine alternator belt is used. The spinning is made possible by the alternator Belt that runs from the pulley on the alternator to the crank-shaft without the alternator Belt the battery would die after a short amount of driving. The type of the Belt around the alternator depends solely on the make of the vehicle. Older cars are fitted with a Cogged Belt for the alternator, while newer cars use Poly-V Belts as an alternator Belt.


  • Best suited for next-generation, high speed engines
  • Cog profile offers enhanced flexibility and heat dissipation rate
  • Higher power transmission capacity, best suited for smaller diameter pulleys
  • Engineered and chemically treated modulus & low stretch tensile cords for higher loads, without stretch
  • Compounded for better grip and lateral rigidity
  • Excellent resistance to oil and heat
  • Suitable for HEMM (Heavy earth moving machinery) applications
  • Temperature range: -25°C to +100°C and -45°C to +120°C in case of EPDM Belts

Constructional Details

  • 1. Specially designed top fabric for high resistance to wear and crack
  • 2. Special high adhesion compound for improved dynamic adhesion performance
  • 3. Specially treated polyester cord ensures minimal stretch of the belts
  • 4. Fibre loaded compression compound for high power transmission and dimensional stability
  • 5. Molded cogged profile for superior flexibility and heat dissipation

Product Range

Section Top Width (mm) Thickness (mm) Angle (Degree) Manufacturing Range Length Designation
Min. (mm) Max. (mm)
X9.5 / AVX10 10.0 8.0 36 550 5000 La
X12.5 / AVX13 13.0 10.0 36 550 5000 La
X10A 10.5 8.0 36 550 5000 Le
X11A 11.5 8.0 36 550 5000 Le
X13A 13.5 9.0 36 550 5000 Le
X15A 17.0 10.5 38 550 5000 Le
X17A 18.5 11.0 36 550 5000 Le
X20A 21.5 12.5 36 550 5000 Le

Reference standards

BS ISO-5287, DIN 7753-3, SAE J 636, JASO E 107


  • High temperature industrial drives, compressors, blowers, high power presses, hot rolling mills, textile machinery, ID fan, FD fans, excavators, pumps, generators, pulverisers, etc.

Product Label

Related Products

Automotive Ribbed / Poly V-Belts
Automotive Timing Belts

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