SINOCONVE ribbed belts combine the flexibility of a flat belt with the high power transmission capability of a V-belt. Multiple longitudinal ribs increase the contact area with the pulley, helping distribute the transmission load evenly while providing smooth, stable and efficient operation.
The belts are manufactured as a wide molded sleeve and then cut into the required number of ribs according to customer specifications. This production method helps maintain consistent belt dimensions and reliable transmission performance.
High Power Transmission · Low Elongation · Smooth Running · Long Service Life
SINOCONVE ribbed belts, also known as Poly V belts, multi-rib belts or PK belts, combine the flexibility of a flat belt with the high power transmission capability of a V-belt. The multiple longitudinal ribs provide a large contact area with the pulley, helping transmit power efficiently while maintaining smooth and stable operation.
Designed for industrial machinery, automotive systems and other compact drive applications, SINOCONVE ribbed belts provide reliable performance under high-speed operating conditions. Different rib numbers and belt lengths are available to meet different transmission requirements.
| Equal Power Transmission Multiple ribs distribute the transmission load evenly across the pulley contact surface. |
High Load Capacity Designed for reliable power transmission in demanding industrial and mechanical applications. |
| Low Elongation Stable belt construction helps maintain proper tension during continuous operation. |
Long Service Life Wear-resistant materials help extend operating life and reduce replacement frequency. |
| Smooth Running Flexible rib construction supports stable operation at high rotational speeds. |
Excellent Operational Safety Reliable belt engagement helps maintain stable transmission performance. |
| Structure | Function |
|---|---|
| Top Fabric / Backing | Helps protect the belt structure and improves dimensional stability. |
| Tension Cord | Provides tensile strength and helps control belt elongation during operation. |
| Rubber Compound | Provides flexibility, heat resistance, wear resistance and stable power transmission. |
| Longitudinal Ribs | Increase pulley contact area and distribute transmission force across multiple ribs. |
3PK, 4PK, 5PK, 6PK, 7PK, 8PK, 9PK, 10PK, 11PK, 12PK
Different belt lengths and rib quantities can be supplied according to application requirements. Please provide the required belt section, rib number, effective length and application information when requesting a quotation.
| Product Type | Ribbed Belt / Poly V Belt / Multi Rib Belt |
| Available Section | PK |
| Available Ribs | 3PK–12PK |
| Temperature Range | -55°C to +70°C |
| Resistance | Oil, Heat, Ozone and Abrasion Resistant |
| Static Conductivity | ISO 1813 |
| Length | Multiple lengths available / Customized |
| Application | Industrial Machinery, Automotive and Power Transmission Systems |
SINOCONVE ribbed belts are suitable for compact and high-speed power transmission systems, including:
Stable Quality
Production and quality inspection are controlled to maintain consistent belt dimensions and transmission performance.
Multiple Specifications
Different rib quantities and belt lengths are available for a wide range of transmission systems.
Application-Based Selection
Belt specifications can be selected according to pulley arrangement, operating speed, transmitted power and working conditions.
OEM & Custom Supply
Customized sizes, packaging and product specifications can be supplied according to buyer requirements.
Reliable Bulk Supply
Suitable for distributors, industrial belt suppliers, machinery manufacturers and replacement markets.
For faster belt selection and quotation, buyers are recommended to provide the following information:
A ribbed belt is a power transmission belt with multiple longitudinal V-shaped ribs. Its design combines a large pulley contact area with good flexibility, making it suitable for compact and high-speed drive systems.
A conventional V-belt normally uses one V-shaped belt profile, while a ribbed belt uses multiple smaller longitudinal ribs. This allows the ribbed belt to operate effectively with smaller pulley diameters and compact drive layouts.
SINOCONVE can supply common PK rib configurations from 3PK to 12PK. Different belt lengths are available according to application requirements.
Yes. Belt rib quantity, length, packaging and other supply requirements can be discussed according to the buyer's application and order requirements.
Providing the existing belt marking, PK section, rib number, belt length, equipment type and required quantity will help determine the appropriate specification more efficiently.
SINOCONVE supplies PK ribbed belts for industrial, automotive and general power transmission applications. Send us your belt model, rib number, length and quantity for product selection and quotation.
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