GY6 Sliding Sheave HK202918RS Bearing

Sliding Sheave Bearing for GY6 125cc and 150cc Engines

This needle bearing for the sliding sheave is made for four-stroke GY6 engines in the 125cc and 150cc sizes, specifically those marked with engine codes QMJ152, QMJ157, or QMI157. It works as a replacement for the sliding sheave bearing in the CVT clutch, helping it run smoothly. It is one of the essential GY6 scooter parts, supporting engine performance and service life, and it is a useful component for scooter repairs or routine maintenance.

Construction and Seal Design

The bearing uses a drawn cup with caged needle rollers, a layout that spreads the load evenly and keeps friction low. It is made from GCr15 chrome steel, a material chosen for strength and durability. The RS seal keeps dust and debris out, protecting the inner parts and helping the bearing last longer.

Installation and Replacement

This part is designed to fit compatible GY6 engines directly, so swapping it in is straightforward. If your CVT system starts making unusual sounds or loses performance, the sliding sheave bearing may need replacing. Checking it regularly and replacing it when needed can help prevent further engine damage and keep your scooter running well.

Specifications

• Material: Chrome Steel (GCr15)
• Type: Drawn Cup Caged Needle Roller Bearing
• Seal: RS Sealed
• Fits: GY6 125cc and 150cc 4-stroke engines with QMJ152, QMJ157 or QMI157 engine codes
• OEM Part Number: HK202918RS

Fitment

Fits:

• GY6 125cc 4-stroke engine (QMJ152, QMJ157 or QMI157 engine code)
• GY6 150cc 4-stroke engine (QMJ152, QMJ157 or QMI157 engine code)
• Most Chinese-made 125cc and 150cc scooters (common fitment)

How to choose: Before you order, check that the engine code on your engine case is QMJ152, QMJ157 or QMI157.

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