Belt tensioner pulley Tensioner bearing pulley for VO LVO V-ribbed belt set OE 31339795 Polea tensora

Product Description:

Tensioner pulley
OE NO.: 31339795 31251743

Applicable vehicle type: For VO LVO

The automotive tensioner pulley is a critical component within the engine's drive train system, designed to automatically regulate the tension of the timing belt or auxiliary belts. This ensures the belts operate stably under appropriate tension. It effectively compensates for elongation caused by wear and ageing, preventing slippage and tooth skipping, thereby safeguarding the proper functioning of auxiliary components such as the alternator, air conditioning compressor, and water pump.

As a wear part, the tensioner pulley is typically recommended for replacement alongside the belt to ensure long-term reliable operation of the drive system.

The tensioner pulley continuously applies appropriate pressure to the belt via an elastic clamping mechanism:

• Dynamic adjustment: The tensioner presses against the belt and follows its movement, altering the pulley wrap angle to automatically adjust tension and compensate for belt elongation.
• Resistance damping: An internal resistance mechanism (such as a torsion spring) absorbs vibrations generated during belt operation, preventing premature wear. Torsion spring parameters directly influence torque and resistance; optimising the mean diameter through proper design enhances resistance values.
• Pressure Retention: Utilises springs or hydraulic pressure to generate sustained tension, ensuring the belt presses against the drive pulley at optimal pressure to guarantee transmission torque and friction.

Core Function: Maintains optimum belt tension – insufficient tension causes slippage and tooth skipping; excessive tension accelerates belt and bearing wear.

• 20 years of specialized auto parts industry experience
• Expert technical team for comprehensive support
• Direct partnerships with repair shops for real-world feedback
• Premium quality parts ensuring reliability and durability
• Extensive inventory with over 500,000+ items ready to ship
• Responsive customer service with quick turnaround
• Customized solutions for specific vehicle requirements
• Professional technical guidance and installation support
• Comprehensive 12-month warranty coverage
• Competitive pricing through optimized supply chains
• Rigorous quality control meeting industry standards
• Efficient global shipping via multiple carriers

Beijing Huarui Jietong Trading Co., Ltd. has been engaged in the automotive aftermarket for 20 years and is a professional supplier of auto parts. Located in the capital of China, Beijing, we have factories in Beijing, Guangzhou, and Jiangsu, which enable us to meet our customers' demands for quality and quantity in a timely and efficient manner.

The company primarily focuses on accessories for Land Rover, Jaguar, and VO LVO product series, including Air Conditioning Systems, Braking Systems, Driving Systems, Engine Systems, Cooling Systems, Auto Body Systems, Steering Systems, Suspension Systems, Transmission Systems, and other related parts. Facing the trend of economic globalization, our company is committed to bringing better products and services to the world, providing high-quality products and services for domestic and foreign enterprises and customers.

We welcome any inquiries and look forward to your contact.