CVT Weight Rollers

KOK manufactures CVT weight rollers for continuously variable transmissions used in scooters and other light mobility applications.

CVT weight rollers are precision components that influence shift characteristics and operating behaviour within the variator assembly. Consistent mass, dimensional accuracy, and wear behaviour are critical to reliable performance.

Manufacturing Scope

KOK CVT weight rollers are manufactured to customer-defined specifications, supporting both OE production and established aftermarket programs.

Production focuses on:

• Tight control of individual roller mass
• Dimensional consistency
• Stable running surface characteristics

Each roller is produced to ensure repeatability within matched sets.

Construction & Materials

CVT weight rollers supplied by KOK may be manufactured using combinations of metal cores and engineered polymer running surfaces, depending on specification.

Available core materials include:

• Brass
• Aluminium
• Steel

Polymer running surfaces are selected to provide:

• Controlled friction characteristics
• Wear resistance under continuous operation
• Stable interaction with variator ramps

Polymer-over-metal constructions are used where required to ensure mechanical integrity and consistent performance.

Quality Control

CVT weight rollers are subject to individual weight verification to ensure mass consistency and balance within defined tolerances.

Production and inspection processes are designed to support:

• Uniform performance across roller sets
• Long-term dimensional stability
• Reliable service life under operating conditions

Design & Specification Support

CVT weight rollers are manufactured according to customer drawings and performance requirements. Where required, KOK provides manufacturability and material process feedback to support production stability and consistency.