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Home / Product Range / Transmission Belts / Rubber V-Belts / SPA-Type European Standard Narrow-Section Heavy-Duty Transmission V-Belt, for Mining Machinery and Heavy Crushing Equipment
  • SPA-Type European Standard Narrow-Section Heavy-Duty Transmission V-Belt, for Mining Machinery and Heavy Crushing Equipment
  • SPA-Type European Standard Narrow-Section Heavy-Duty Transmission V-Belt, for Mining Machinery and Heavy Crushing Equipment
Rubber V-Belts

SPA-Type European Standard Narrow-Section Heavy-Duty Transmission V-Belt, for Mining Machinery and Heavy Crushing Equipment

This SPA European-standard narrow V-belt is built for heavy-load, harsh industrial environments such as mining and metallurgy. It uses high-strength polyester cord as the tension member together with oil-resistant chloroprene rubber, providing extremely stable power transmission under severe shock and heavy dust.

Item Specification
Model SPA
Section standard DIN 7753 / ISO 4184
Section dimensions Top width approx. 12.7mm, height approx. 10mm
Construction materials Chloroprene rubber (CR) + polyester cord
Compatible pulleys SPA-groove European-standard taper-bush pulleys
Performance features High tensile strength, oil-resistant, heat-resistant, anti-static
Available lengths Multiple sizes available by effective length (Lw)

Key Product Advantages Key Selling Points Applications and Scenarios Contact Us

1. Heavy-load shock resistance, acting as a "mechanical fuse": When shock-prone equipment such as crushers and heavy fans starts up or jams, the SPA narrow V-belt can safely slip in the groove to instantly release overload torque, effectively protecting the expensive motor from burning out.
2. Polyester cord core, very low elongation: The tension layer uses multi-strand polyester cord wound in a spiral. Even under prolonged heavy-load tension, stretch is negligible, greatly reducing how often the machine must be stopped to readjust tension.
3. Chloroprene rubber compound, oil- and heat-resistant: The belt body has excellent heat-aging and oil-corrosion resistance, so it keeps its rubber elasticity in hot, oily heavy-industry workshops without hardening or cracking.
4. European-standard groove profile with perfect wrap: The 12.7mm narrow section wedges deeply into the SPA pulley groove, generating great friction and transmitting power far more efficiently than ordinary classic A-section V-belts.

The "powerhouse" of heavy equipment: A single belt can transmit great power, reducing the number of belts needed and simplifying the drive structure of heavy equipment.
OEM-grade replacement standard: Built strictly to international metric standards, making it the first choice for repair and replacement on large machinery overseas.

Mining and quarrying: Drive transmissions of jaw crushers, cone crushers, and heavy-duty vibrating screens.
Heavy building materials: Cement kiln induced-draft fans, tube mills, and slurry pumps.
Heavy industry: Core power transmission of large air compressors and large agricultural threshers.

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About Rentai
Transmission Equipment

Shanghai Rentai Transmission Equipment Co., Ltd. is a manufacturer specializing in R&D, production and export of mechanical transmission components. Our main products include taper lock pulleys, taper lock bushes, timing pulleys, V-belts and timing belts. We also provide OEM & ODM custom service for non-standard transmission parts. Our factory covers over 8000 square meters, with more than 100 employees including 22 technical staff. We integrate casting, machining and finishing, equipped with CNC machines and testing instruments, with an annual casting output of 2000 tons. Supported by complete quality management system and international standards, our products are exported to Southeast Asia, Middle East, Europe and America, delivering reliable transmission solutions for global industrial clients.

  • 10+

    Industry Experience

  • 100+

    Production staff

  • 2000+Ton

    Annual Production

  • 8000+㎡

    Factory Area

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