SINOCONVE 6PK 8PK 10PK 16PK Ribbed Belt Poly V Belt for Power Transmission
SINOCONVE PK ribbed belts, also known as Poly V belts or multi-rib belts, combine the flexibility of a flat belt with the wedge engagement of a V-belt. Available configurations include 6PK, 8PK, 10PK and 16PK, providing different working contact areas for a wide range of power transmission requirements.
The PK profile has a reference rib pitch of 3.56 mm, an approximate belt height of 6 mm, and a 40° rib angle. Low-stretch tensile reinforcement helps maintain dimensional stability and coordinated load distribution across the ribs.
Models: 6PK / 8PK / 10PK / 16PK
Profile: PK
Pitch Pb: 3.56 mm
Belt Height: Approx. 6 mm
Rib Angle: 40°
Length: Effective Length Le, customized as required
CR, EPDM and reinforced material options can be selected according to operating requirements. The belts are suitable for industrial machinery, HVAC systems, fans, pumps, compressors, automotive accessory drives and other compact power transmission systems.
OEM/ODM, custom marking and packaging are available.
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Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
SINOCONVE 6PK 8PK 10PK 16PK Poly V Ribbed Belt
PK Profile · High Flexibility · Stable Power Transmission · Custom Effective Length
PK Poly V Ribbed Belt
SINOCONVE PK ribbed belts, also known as Poly V belts or multi-rib belts, are designed for efficient and compact power transmission. This product range includes 6PK, 8PK, 10PK and 16PK configurations for different drive requirements.
Multiple longitudinal ribs increase the working contact area between the belt and pulley. The design combines the flexibility of a flat belt with the wedge engagement characteristics of a V-belt, supporting stable transmission, relatively small pulley diameters and compact drive layouts when correctly matched to the transmission system.
View more profiles and rib-count options in the SINOCONVE Ribbed Belts product range.
Technical Specifications
| Product Type | Ribbed Belt / Poly V Belt / Multi-Rib Belt |
| Profile | PK |
| Available Rib Counts | 6PK / 8PK / 10PK / 16PK |
| Reference Rib Pitch Pb | 3.56 mm |
| Reference Belt Height | Approx. 6 mm |
| Rib Angle | 40° |
| Length Mark | Effective Length Le |
| Effective Length | Customized according to belt marking or drive requirements |
| Material Options | CR / EPDM / Reinforced Options |
| Customization | OEM / ODM / Custom Marking / Custom Packaging |
Available PK Rib Configurations
| Model | Rib Number | Profile | Effective Length |
|---|---|---|---|
| 6PK | 6 | PK | According to requirement |
| 8PK | 8 | PK | According to requirement |
| 10PK | 10 | PK | According to requirement |
| 16PK | 16 | PK | According to requirement |
The rib count and effective length should be selected according to the existing belt marking, pulley dimensions, transmitted power and drive layout.
Product Advantages
| High Power Transmission Multiple ribs provide a large working contact area for efficient transmission of power. |
High Flexibility The thin multi-rib construction supports repeated bending and compact pulley arrangements. |
| Low Elongation Low-stretch tensile reinforcement helps maintain belt length and stable working tension. |
Stable Load Distribution Parallel ribs help distribute transmission load across the pulley contact surface. |
| Smooth Running Properly matched rib geometry supports stable operation in high-speed transmission systems. |
Multiple Material Options Material and reinforcement options can be selected according to application requirements. |
Ribbed Belt Construction
| Component | Function |
|---|---|
| Belt Back | Protects the internal belt structure and supports dimensional stability. |
| Tensile Cord | Carries transmission load and helps control elongation during operation. |
| Rubber Compound | Provides flexibility and protects the internal reinforcement during repeated bending. |
| Longitudinal PK Ribs | Engage with matched pulley grooves to transfer power across multiple parallel ribs. |
Material and Surface Options
Material selection should be based on operating temperature, speed, pulley arrangement, environmental exposure and required service conditions.
- CR: general-purpose ribbed belt compound option
- EPDM: available for applications requiring an alternative compound
- Reinforced Options: available according to application requirements
- Back Surface Options: rough, glossy, fabric and other confirmed constructions
- Tensile Reinforcement: low-stretch cord construction available
Final material, reinforcement and surface construction should be confirmed before production.
Typical Applications
PK Poly V belts are widely used where compact dimensions, flexibility and stable frictional power transmission are required.
- Industrial machinery
- HVAC systems
- Compressors
- Fans and ventilation equipment
- Pumps
- Automotive accessory drives
- Industrial washing equipment
- Multi-accessory transmission systems
- General mechanical power transmission
Learn more about belt applications for Industrial Equipment .
How to Read a PK Belt Model
Typical marking format: Rib Number + PK + Effective Length
Example: 6PK1281
6 = 6 ribs
PK = PK rib profile
1281 = Effective Length Le of 1281 mm
The complete belt marking should be provided whenever possible when requesting a replacement belt.
Related PK Ribbed Belt
For a dedicated 8-rib PK configuration, view the SINOCONVE 8PK Ribbed Belt . Additional PK rib counts and effective lengths are available according to drive requirements.
Manufacturing and Customization
Ribbed belts can be produced as a molded sleeve and then cut to the required rib configuration. Production control of the rubber compound, tensile reinforcement, molding and cutting helps maintain consistent rib geometry and transmission performance.
OEM and ODM services are available for different effective lengths, rib counts, material configurations, belt markings and export packaging. Learn more about SINOCONVE .
Information Required for Belt Selection
To confirm the correct PK ribbed belt, please provide as much of the following information as possible:
- Complete existing belt marking
- PK profile
- Number of ribs
- Effective length Le
- Pulley groove dimensions
- Pulley diameters
- Center distance
- Motor speed or operating speed
- Transmitted power or torque
- Operating temperature and environment
- Required quantity
- OEM marking or packaging requirements
Frequently Asked Questions
What is a PK ribbed belt?
A PK ribbed belt is a Poly V belt with multiple longitudinal ribs using the PK profile. The PK profile has a reference rib pitch of 3.56 mm and a 40° rib angle.
What is the difference between 6PK, 8PK, 10PK and 16PK?
The number before PK indicates the number of ribs. Therefore, 6PK has six ribs, 8PK has eight ribs, 10PK has ten ribs and 16PK has sixteen ribs. The correct configuration depends on the matching pulley and drive design.
Does PK specify the belt length?
No. PK identifies the belt profile. The effective length is normally included separately in the complete belt marking and must be confirmed for each application.
Can SINOCONVE customize the effective length?
Yes. Different effective lengths, rib counts, material constructions, markings and packaging options can be supplied according to confirmed order requirements.
What information should I provide for a quotation?
Please provide the complete belt marking, rib number, effective length, application, pulley information, operating conditions and required quantity. A sample or technical drawing can also help confirm the correct specification.
Need 6PK, 8PK, 10PK or 16PK Ribbed Belts?
Send us your complete belt marking, rib number, effective length, application and quantity for specification confirmation and quotation.
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Tel: 0086-18668582073
Email: sales@sinoconve.com
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Address: Room 1602, sanlong building, tiangao street, south cbd, yinzhou district, ningbo, zhejiang ,china
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