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HI HJ HK HL HM HN HO HQ series Wrapped Variable Speed Harvester Belts

HI HJ HK HL HM HN HO HQ series Wrapped Variable Speed Harvester Belts

Variable Speed V belt is a specialized power transmission belt designed to continuously adjust operational speed while maintaining torque transfer in combine harvesters and other agricultural machinery. It has Trapezoidal cross-section with variable-width grooves to accommodate shifting pulley diameters, and reinforced tensile cords for minimal stretch under dynamic loads.

  • Brand :

    Zhongliang, Liannong, Agreap, Rnupower, JDRE
  • Item No :

    HM-3660Lw
  • Certificate :

    ISO9001, ISO14001, ISO45001 and ISO50001
  • Payment :

    100% T/T before delivery
  • Product Origin :

    China
  • Shipping Port :

    Any port in domestic of China
  • Lead Time :

    15-45 working days

Applications:

  • Agricultural machinery (Combine harvester, Forage machine, Seeding and Tillage machine, Threshing machine, Grinding machine)
  • Textile machinery (Carding machine, looms);
  • Printing machinery;
  • Packaging machinery;
  • Food processing machinery;
  • Transportation tools(Motorcycles, Scooters, small farm transporters)
  • Body building apparatus(Running machine, Spin bike, elliptical machine)
  • Medical apparatus and instruments(Centrifuge, stirrer, rehabilitation equipment)

 

Features:

Adopting reinforced CR + Special polyester or aramid cord, guarantee high power transmission capacity

Suitable for drives with small pulley diameters

High tensile strength, Lower elongation and slippage

Suitable for heavy-duty, high-speed applications

Anit-static, Oil and heat resistant, Flame-Retardant, Cold-Resistant, Corrosion-Resistant, Alkali-Resistant, Skid-Resistance, Wear-Resistant

Temperature range: -25˚C to +100˚C

Recommended relative humidity: 65±15%

Manufactured in ISO 9001 registered facility 

 

Structure Details:

No. Name Material Function

1

Cover Fabric Polyester Cotton Canvas Protect the linling tensile member
2 Top Fabric Polyester Cotton Canvas Wear-resistant 
3 Filler Rubber CR, EPDM Maintain the top shape of the adhesive tape
4 Cushion Rubber CR, EPDM Core material to pass the dynamic force
5 Tension Cord Polyester/Aramid Cord High tensile cord embedding cushion rubber compound
6

Base Rubber

CR, EPDM Support and protect the adhesive force of the tensile member
7 Bottom Fabric CR, EPDM Maintain the bottom shape of the adhesive tape
 

 

Agricultural Variable Speed REC (Raw Edge Cogged) Belts

 

Cross section specifications:

Section Dimensions Manufacturing Length Range

Top Width

(mm)

Height

(mm)

Pitch Width

(mm)

Angle

(°)

Min.(Inch/mm) Max.(Inch/mm)
HI 25.4 12.7 23.6 40° 40/1000 590/15000
HJ 31.8 15.1 29.6 40° 40/1000 590/15000
HK 28.1 17.5 35.5 40° 40/1000 590/15000
HL 44.5 19.8 41.4 40° 40/1000 590/15000
HM 50.8 22.2 47.3 40° 40/1000 590/15000
HN 57.2 23.9 53.2 40° 40/1000 590/15000
HQ 63.5 25.4 59.1 40° 40/1000 590/15000
 
 

Reference Standards: BS 3790, DIN 2215, RMA/MPTA IP-22, ISO 4184, IS 2494, ISO 3790, BS 3733, ASAE 211.5

 

FAQ:

1.Are you a manufacturer in China? 

Answer: Yes, we are the leading manufacturer of Agricultural V belt in domestic of China, and own 3 factories at present.

 

2. What kind of certifications do you have?

Answer: We have passed ISO9001, ISO14001, ISO45001, ISO50001

 

3. What materials are used in the product? What are our competitive advantages?

Answer: 1) Our Material Composition:

    • Top-grade chloroprene rubber----CR/EPDM (oil & heat resistant)

    • Polyester/Aramid tensile cords 

    • Abrasion-resistant cover fabric (extends lifespan by 30% vs standard belts)
      2) Differentiated Advantages:

    • Longer Service Life – 2,000+ hours under heavy loads (independently verified)

    • Precision-Molded Profiles – Ensures 98% power transmission efficiency

    • Static-Dissipative Options – Critical for grain dust environments (ISO 1813 certified)

 

4. My equipment has a 5.5kW power rating. Which V-belt model should I choose?

Answer: Selection requires three key parameters:

       1) Shaft speed (RPM)

       2) Pulley diameters (driver/driven)

       3) Center distance

For 5.5kW applications:

  • Standard recommendation: A-section (A55~A80) or B-section (B45~B75) classical V-belts

  • Next steps: Provide equipment name and model (e.g., pump/compressor type), Our engineers will validate the optimal belt within 4 business hours.

 

5. What's the minimum order qty?
Answer. It depends on sizes and mould height.

 

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If you are interested in our products and want to know more details, please leave a message here, we will reply to you as soon as we can.

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