Backside Tension Timing Idler Pulley | Dual-Side Bearing

Backside Tension Timing Idler Pulley – Both Sides Bearing

The Backside Tension Timing Idler Pulley with Dual-Side Bearing is a premium-grade tensioner designed for demanding automotive and industrial applications. Engineered with a robust dual-bearing system, this idler pulley delivers superior stability, reduced vibration, and extended service life compared to standard single-bearing models.

Crafted from high-strength aircraft-grade aluminum alloy combined with precision bearing steel, this pulley features a smooth, mirror-finished contact surface that minimizes belt wear while maintaining optimal backside tension on timing belts. The dual-side bearing design effectively distributes radial and axial loads, ensuring smooth rotation even under high RPM and heavy-duty conditions.

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Backside Tension Pulley Key Features & Benefits

• Dual-Side Bearing Design Equipped with two high-precision sealed deep groove ball bearings. This configuration provides excellent support on both sides, significantly reducing deflection, noise, and vibration while extending bearing life by over 30% compared to conventional idler pulleys.
• Premium Material & Construction Made from high-grade aluminum alloy with reinforced structure. The surface undergoes precision CNC machining and anodizing treatment for superior corrosion resistance and long-lasting appearance.
• Optimized Backside Tension Specifically engineered for backside (flat side) tensioning of timing belts. Maintains consistent belt tension, prevents belt slippage, jumping teeth, or loosening, ensuring accurate valve timing and improved engine efficiency.
• Low Friction & High Durability Pre-lubricated with high-temperature grease and double-sealed bearings (IP65 dust and water resistance). Operates smoothly in temperatures ranging from -40°C to 120°C.
• Precision Engineered Dynamic balance tested to minimize vibration. Mirror-polished belt contact surface reduces friction and extends timing belt lifespan.

Technical Specifications

• Outer Diameter: 60–80mm (custom sizes available)
• Bearing Type: Dual sealed deep groove ball bearings
• Material: High-strength aluminum alloy + bearing steel
• Surface Treatment: Anodized finish
• Weight: Approximately 0.45 kg
• Temperature Range: -40°C to 120°C
• Application: Backside timing belt tensioning

Wide Applications

Perfect for:

• Automotive engines (compatible with Volkswagen, Toyota, Honda, Ford, BMW, and many other models)
• Performance and racing vehicle upgrades
• Industrial machinery, CNC equipment, automation lines
• Generators, agricultural machinery, textile equipment
• Heavy-duty transmission systems

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