SINOCONVE 4PK895 Automotive Ribbed Belt Poly V Serpentine Fan Belt
The 4PK895 is a PK-profile Poly V belt featuring four longitudinal ribs and an effective length of 895 mm. Its multi-rib structure combines the flexibility of a flat belt with the wedge engagement of a V-belt, providing a larger pulley contact area for stable and efficient power transmission.
The PK profile uses 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 during operation.
Model: 4PK895
Profile: PK
Number of Ribs: 4
Effective Length: 895 mm
Rib Pitch: 3.56 mm
Rib Angle: 40°
Suitable for automotive accessory drives, alternators, cooling fans, water pumps, air-conditioning compressors and other compact mechanical transmission systems where the 4PK895 specification is required.
Different compound, belt-back surface, marking and packaging options can be supplied according to confirmed order requirements.
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Product Overview
The SINOCONVE 4PK895 automotive ribbed belt is a PK-profile Poly V belt with four longitudinal ribs and an effective length of 895 mm. It is designed for compact automotive accessory drives and other mechanical power transmission systems requiring a matched 4PK895 specification.
Its multi-rib structure combines the flexibility of a flat belt with the wedge engagement characteristics of a V-belt. The four parallel ribs increase the working contact area with the pulley, helping support stable load transfer and smooth transmission.
Browse more models in the SINOCONVE Ribbed Belts range.
4PK895 Technical Specifications
| Model | 4PK895 |
| Product Type | Automotive Ribbed Belt / Poly V Belt / Multi-Rib Belt |
| Profile | PK |
| Number of Ribs | 4 |
| Effective Length Le | 895 mm |
| Reference Rib Pitch Pb | 3.56 mm |
| Reference Belt Height | Approx. 6 mm |
| Rib Angle | 40° |
| Customization | OEM / ODM / Custom Marking / Custom Packaging |
What Does 4PK895 Mean?
4 = Four longitudinal ribs
PK = PK rib profile with a reference pitch of 3.56 mm
895 = Effective belt length Le of 895 mm
The complete belt marking should be checked when replacing an existing belt. Rib profile, rib number, effective length, pulley geometry and equipment requirements must all be compatible.
Key Advantages
| Efficient Power Transmission Four longitudinal ribs provide a large working contact area for effective transfer of power. |
High Flexibility The thin multi-rib structure supports repeated bending and compact pulley arrangements. |
| Low Elongation Low-stretch tensile reinforcement helps maintain belt dimensions and working tension. |
Stable Rib Loading Parallel ribs help distribute transmission force across the pulley contact surface. |
| Smooth Running Correctly matched rib geometry supports stable operation in higher-speed drive systems. |
Compact Drive Design Poly V construction is suitable for multi-accessory transmission systems with limited installation space. |
Belt Construction
| Component | Function |
|---|---|
| Belt Back | Protects the belt structure and supports dimensional stability. |
| Tensile Cord | Carries transmission load and helps control elongation. |
| Rubber Compound | Provides flexibility and supports repeated bending during operation. |
| Four PK Ribs | Engage with the matched pulley grooves and distribute transmission force across four ribs. |
Material and Surface Options
Belt compound and construction can be selected according to operating temperature, rotational speed, pulley layout and environmental requirements.
- CR compound options
- EPDM compound options
- Reinforced tensile constructions
- Rough belt-back options
- Glossy belt-back options
- Fabric belt-back options
- Custom belt marking
- Custom export packaging
Final material and surface configuration should be confirmed according to the actual drive application.
Typical Applications
The 4PK895 can be used in automotive accessory and mechanical power transmission systems designed for the corresponding PK belt specification.
- Automotive alternator drives
- Cooling fan drives
- Water pump drives
- Air-conditioning compressor drives
- Engine accessory transmission systems
- Compact mechanical drive systems
Final equipment compatibility should be verified against the original belt marking, pulley dimensions and equipment specification.
Manufacturing and Customization
Ribbed belts can be manufactured as a wide molded sleeve and then cut into the required number of ribs. Controlled compound preparation, tensile-member positioning, molding and cutting help maintain consistent rib geometry and finished belt dimensions.
Learn more about SINOCONVE manufacturing capabilities .
More PK Ribbed Belt Options
SINOCONVE supplies different PK rib counts and effective lengths for automotive and industrial transmission applications. You can also view our 12PK Poly V Ribbed Belt or browse the full Ribbed Belt product range .
Information Required for Belt Selection
For accurate specification confirmation and quotation, please provide:
- Complete existing belt marking
- Rib profile
- Number of ribs
- Effective length Le
- Pulley dimensions
- Drive arrangement
- Operating speed
- Working temperature
- Application or equipment type
- Required quantity
- OEM marking or packaging requirements
Frequently Asked Questions
What does 4PK895 mean?
The marking indicates a Poly V belt with four ribs in the PK profile and an effective belt length of 895 mm.
Is 4PK895 a serpentine belt?
The 4PK895 belongs to the Poly V or multi-rib belt family commonly used in automotive accessory and serpentine drive systems. Actual compatibility must be confirmed according to the vehicle or equipment specification.
Can a similar-length belt replace 4PK895?
Not necessarily. A replacement belt must match the rib profile, rib number, effective length and pulley system. Similar belt length alone does not guarantee interchangeability.
Can other 4PK lengths be supplied?
Yes. Different PK effective lengths and rib-count configurations can be supplied according to confirmed specifications and order requirements.
What information should be provided for a quotation?
Please provide the existing belt marking, rib number, effective length, application, required quantity and any custom marking or packaging requirements.
Need 4PK895 or Other PK Ribbed Belt Sizes?
Send your belt model, rib number, effective length, application and required quantity for specification confirmation and quotation.
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