SPA Series Narrow Wedge Industrial V-Belts – Efficient, High-Torque Power Transmission for Compact Industrial Drives
SPA Series Narrow Wedge Industrial V-Belts are designed to deliver reliable, high-efficiency power transmission in machinery requiring high torque, high speed, and compact drive layouts. As part of the metric narrow wedge belt family, SPA belts are fully compliant with DIN 7753 and ISO 4184 standards, ensuring global compatibility across European and international industrial equipment. Their optimized geometry allows for greater power transfer in a smaller footprint compared to classical V-belts.
High-Efficiency Profile for Space-Saving Drives
With a 13 mm top width and 10 mm height, SPA belts offer increased power density and improved torque transmission while supporting shorter center distances and high-speed operation. Reinforced with durable polyester tensile cords and constructed from heat- and oil-resistant rubber compounds, these belts deliver excellent stability, minimal stretch, and long service life—even in demanding or continuous-duty environments.
SPA belts are available in both solid and cogged configurations. The optional cogged design further enhances flexibility, reduces bending resistance, and improves heat dissipation, making it ideal for smaller pulleys or high-speed drives.
SPA Industrial V-Belt Specifications
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Top Width: 13 mm
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Height: 10 mm
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Included Angle: 40°
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Pitch Width: ~11 mm
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Length Range (Li): 732 mm to 3550 mm
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Material: Oil- & heat-resistant rubber with polyester cords
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Operating Temperature: -30°C to +80°C
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Design Options: Solid or cogged
Applications of SPA V-Belts
SPA belts excel in medium- to heavy-duty industrial applications, including:
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Fans, blowers, and air handling equipment
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Air compressors
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Industrial pumps
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Packaging and conveyor systems
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Agricultural and forestry machinery
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Machine tools, textile, and processing equipment
Why Choose SPA Narrow Wedge Belts?
SPA belts offer higher power density, better alignment stability, and lower maintenance requirements than classical V-belts. Their compact yet powerful design helps reduce pulley size, increase efficiency, and optimize overall system performance—making SPA belts a reliable and cost-effective choice for modern industrial drive systems.