SP Metric V BeltBuilt to ISO Standard 4184. SP series V-belts were the forerunners of the RMA deep wedge, high capacity V-belt sections. These deep-wedge belts (38°) allow for more power, high-speed ratios, smaller center distances and more compact drives. They are replacement belts for many imported machines and for machinery built for export.

These V-belts also have the UniMatch® feature. This eliminates belt set matching with its multiple stocking problems. Non-standard lengths are available on special order.

SP series Metric V-belts are specified by letters indicating the section and numbers giving the pitch length in millimeters – Example: SPZ512.

Features & Benefits

  • High Power Capability – Higher power with a more compact drive
  • Static Dissipating – Safe operation in potentially dangerous atmosphere
  • UniMatch® Construction – Consistent performance in multiple V-belt drives and ensures all belts of the same size measure within ISO 4184 matching limits
  • Oil & Heat Resistant – Better than standard belts in oily environments (occasional splash) and higher ambient temperatures


  • Compound – NR/SBR
  • Cord – Polyester
  • Cover – Cotton/polyester blend
  • Special Constructions – Available in raw edge cogged construction by special order (XPZ, XPA, XPB). Up to 2240mm in all sections.

Technical Info

  • Applications – General Industry, Agriculture
  • Engineering Standards – Conforms to ISO Standard 4184
  • Recommended Pulleys – Use pulleys made to ISO 4143 standards
  • Non-Standard Lengths – Available by special order

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