612630060847 Belt Tensioner

This 612630060847 Belt Tensioner is specially for diesel engine WP12/WD12/WD618/WP13, etc.. No bearing seizing, no belt slippage, no premature wear, even after long-time using. The body is built with high-carbon steel, double-row deep groove ball bearing, and heat-resistant nitrile rubber damping ring. The surface is anti-rust after zinc-plated. Crafted by precision stamping, CNC turning, bearing preload calibration and ultrasonic cleaning, it can undergo the engine vibration, high temperature, and belt friction easily. Every tensioner undergoes the bearing rotation smoothness, tension stability, and corrosion resistance.

① Stable Tension: Forged steel body and preloaded bearing maintains consistent belt tension.
②Durable: GCr15 bearing resists seizing, zinc plating stops rust, and nitrile rubber damping absorbs vibration, so it can last over 80,000km.
③ Smooth Operation: CNC machining ensures minimal runout, sealed bearing keeps out dust and oil. The rotation friction is no more than 0.3N.
④ Low Maintenance: Sealed bearing needs no lubrication, and corrosion-resistant was designed to face harsh engine environment.

This 612630060847 Belt Tensioner only fits WP12/ WD12/ WD618/ WP13 diesel engines.
  

Model: 612630060847
Fits: This 612630060847 Belt Tensioner fits WP12/ WD12/ WD618/ WP13 diesel engines.
Function: Keep belt tension, reduce belt wear, and stabilize power transmission
Material: Made of Forged high-carbon steel, GCr15 chrome steel and heat-resistant nitrile rubber
Working Conditions: -40℃~120℃.
Weight: 580g

Q1: Fits WP7 engine?
A1: No, only WP12/WD12/WD618/WP13.
Q2: Bearing seizes after install?
A2: Check mounting torque; ensure no debris in bearing. If still seizes, contact us for replacement.
Q3: How often to replace?
A3: Every 80,000km or 2 years-whichever comes first.
Q4: Need to lubricate the bearing?
A4: No, bearing is pre-lubricated and sealed.

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