UNION MATERIAL CO., LTD.
ProDesigner in Self-lubrication World

We are professionally specialized in designing, formulating and manufacturing self-lubricating plastic bearing components such as sleeve bushings, 
pivot bearings and guide rollers for many kinds of industrial applications which require low noise, low wear, maintenance free and self-lubrication.

Because of the best quality and reasonable prices, our products are very competitive in the related markets.
Our products are not only adopted by most domestic companies but also exported to Japan, US, China and Europe.

Professional Designs
   In addition to product design, armed with the professional knowledge and innovative ability, we also excel in improving the mechanical structures 
   where our products are used. Here are some of our own patents that should interest you:

   NEW! Adjustable Centrifugal Clutch
   NEW! Sliding Centrifugal Drive Weights for Automatic Transmission
   NEW! High Performance Continuous Variable Transmission

   « Self-lubricated pivot structure for cycle pedal »
   « Bi-directional position fixed bushing mechanism for rotating shaft »
   « Vane of rotary type compressor for air conditioner »
   « Consolidated self-lubricated piston ring for pneumatic tool »
   « Sleeve type bottom bracket for cycle »

Main Products
   Our products and the applications are:
   1. Oilless bushings for bicycle applications: 
       suspension frame bushings, suspension front fork bushings, rear suspension bushings, seat post bushings and pedal bushings.
   2. Oilless guide bushings and piston rings for electric and pneumatic tools:
       air nail gun piston rings.
   3. Oilless bushings for door closers, athletic equipments and business machines.
   4. Bearing grade components for motorcycles/scooters/ATVs
       guide bushings, piston rings for shock absorbers, slide pieces and weight roller comps for scooter CVT (Continuous Variable Transmission) system.

  Sliding roller weight      US PAT. 7276004
       Sliding roller weights “slide” inward and outward in the Movable Drive Pulley (MDF) to change/extend the gear ratio. 
       Dr. Pulley sliding roller weights can :
       1.) Eliminate abnormal wear in high gear position.
       2.) Provide outstanding acceleration and re-acceleration.
       3.) Retain explosive low end acceleration and reach higher top speeds.
       4.) Last longer than traditional weight rollers and continue giving excellent variator performance.

     Adjustable Centrifugal Clutch
       Automatically adjust the required engagement RPM of clutch simply by throttle open speed.
       Easily switch between ECON and SPORT modes by throttle without spending time manually changing the clutch springs.

     High Performance CVT
       An outstanding structured CVT which eliminates the weaknesses of current CVT model. 
       Belt can live much longer without the unwanted distortion and extension; 
       vehicle speed is in direct proportion to the throttle open speed while it’s also easy to shift between economic 
       and sport driving modes.

Scooter/ATV
   We have earned a very good reputation in the field of self-lubricated bearing grade products.  
   Through a series of years long-term motorcycle field tests, we have also proved the excellent quality 
   and the competitive prices of our CVT weight rollers. Our customer in the motorcycle/ATV field includes: 
   DaChangJiang Group, CF Moto, Sanyang Industry (SYM scooter maker), Tailin Industry (Taiwan Suzuki scooter maker),
   PGO Scooters (Motive Power Industry), and CPI Motor. 

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