Sliding Roller Advantage

Question: Round Roller have many flat spots

　　Dr.Pulley SR is much better than conventional round roller, WHY ? you will see there are many flat spots on the rollers.

What are the motion of Roller weight in the variator

New Round Roller’s Movement

　　Normally, people thought the movement of round roller in the variator is by roll moving from the bottom position to the top position and vise versa.

　　In reality, the round rollers do not rotate all the time, actually the movement is one kind of hybrid motions including rolling and sliding, and mostly in sliding after a period of running.

Worn Round Roller’s Movement

　　This one worn Round Rolller have lots of flat spot, serveral spots of them are obvious, the worn Round Rollers are most motion of sliding, it’s difficult to appear rolling movement.

Sliding Roller’s Movement

　　Dr.Pulley Sliding Roller’s movement are always slide movement in the variator.

Dr.Pulley Material

　　Dr.Pulley SR, Sliding Roller is molded by a proprietary self-lubricated composite materials (formulated by Union Material Co.,Ltd.)

having benefits of:

1. Low Friction Coefficient.
2. High Wear Resistance.
3. High Service Temperature.
4. Don’t Attack Non-ferrous metal. (ex.aluminum)

The Benefits of Sliding Roller

So the Sliding Roller advantage including :

1. Broader CVT Shift Range to have better acceleration and top speed.
2. High gear becomes much higher to get Higher Top speed.
3. Low gear becomes much lower to get Better Acceleration from standstill.
4. CVT shift ratio much Stable or Less Fade.
5. Durability much longer than stock round roller, at least three times.
6. Better milage especially for big scooter.

Poor Material Effect

　　In the market, you may find many fake sliding roller molded by poor material with high friction coefficient, low service temperature, low wear resistance , especially very abrasive to attack the Aluminum-made variator.

　　When you choose Dr.Pulley SR to upgrade the performance of your CVT vehicle, please go to Dr.Pulley official dealers.

Youtube Video

Other Related Link

1. Suzuki Burgman – 26,808 miles – WORN Rollers, Belt, & Clutch shoes | MicBergsma https://www.youtube.com/watch?v=E5GXRF5zCsU#t=4.681244
2. What is the difference between sliders and rollers ? https://modernvespa.com/forum/topic108669?highlight=pulley+slider
3. Why is sliding roller more durable? https://youtu.be/o7WrC3VDOi4
4. geniune Dr.Pulley® sliding roller vs FAKE sliders.wmv https://www.youtube.com/watch?v=gOxKttRs4go

More Information

Post: Why is Sliding roller more durable?

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