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This pulley is designed to be mounted directly on the shaft (axle) of karting. It serves as a starting point for the belt that causes the water pump, ensuring continuous circulation of the coolant proportional to the speed of rotation of the axle.
Sustainable material: Its high-density plastic manufacture offers excellent resistance to gum splash and temperature variations while lightweight.
Standard dimension: With a diameter of 50 mmIt offers a conventional transmission report for most competition water pumps.
Simplified installation: Designed to adapt to standard karting axes, it usually attaches to a robust clamping system to prevent slippage.
| Feature | Details |
| Type | Water pump drive pulley |
| Outdoor diameter | 50 mm |
| Material | Technical plastic (Nylon or Delrin) |
| Axis compatibility | Karting rear axle (check the diameter of the axis: 30, 40 or 50mm) |
| Color | Generally black |
Positioning: Align perfectly the pulley of the rear axle with the pulley of the water pump to prevent the belt from jumping or does not wear out prematurely.
Tightening: Make sure the mounting screws are tightened evenly. A slight net brake point can be used to counter the vibration of the shaft.
Verification of the belt: Use O-rings or notched belts adapted to the profile of the pulley. The tension must be firm but must not brush the rotation of the pump.
"In karting, the water pump pulley undergoes all the vibrations of the rear axis. The trick: Check regularly that no gum debris (pick-up) was lodged in the groove of the pulley. My Pro Council: Always plan an alternative pulley in your toolbox. Even if the plastic is solid, a shock with another kart can sometimes split, and without cooling, your engine will not make two more turns! "
Q: Is this pulley compatible with all axis diameters?
A: The plastic pulleys are often specific to a axle diameter (30mm, 40mm or 50mm). Check that the inner diameter is your back tree before purchase.
Q: Why choose plastic rather than aluminum?
A: The plastic is lighter and offers some flexibility that can absorb micro-vibrations, thus protecting a little better the bearings of your water pump.
Q: How many belts should we install?
A: Most drivers install two straps per security. If a breakage, the second ensures the continuity of cooling to finish the handle.
OTK axle Ø 50 x 1030 mm KZ karting, Karting spare parts, Karting accessories, Karting shaft, Karting performance, Karting reliability, Karting maintenance, Magickart.eu, Karting axle choice, Karting weather, Karting grip
The tree is the spine of your rear train. This original model OTK (Tony Kart, Kosmic, wished) In 50 mm diameter is designed to provide the perfect balance between rigidity and flexibility. Its length of 1000 mm is the standard for categories KF / OK and Rotax, offering maximum versatility on the majority of circuits.
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This pulley is designed to be mounted directly on the shaft (axle) of karting. It serves as a starting point for the belt that causes the water pump, ensuring continuous circulation of the coolant proportional to the speed of rotation of the axle.
Sustainable material: Its high-density plastic manufacture offers excellent resistance to gum splash and temperature variations while lightweight.
Standard dimension: With a diameter of 50 mmIt offers a conventional transmission report for most competition water pumps.
Simplified installation: Designed to adapt to standard karting axes, it usually attaches to a robust clamping system to prevent slippage.