Founded in 1995 and as a member of China National Crane Conveyor Machinery Association, China Chuanda Conveyor Belt Co., Ltd. is a specialized plastic pulley manufacturer and custom plastic pulleys designer of various kinds of conveyors, belts, pulleys, bearings, rollers, bushings and so on. Through modern scientific management, excelsior products and technological design, advanced production tools and strict testing methods, we have produced various types of conveyance equipment. In 2001, we were certified by ISO9001: 2000, which has ensured the reliability and stability of product quality. Also, we have passed Germany DQS authentication in the domestic same trade. We have established long-term relationships with some famous mechanical manufacturers both at home and abroad, such as Veit GmbH, Hashima, Oshima, Summit, and KDK companies.

Belt and plastic pulley of our company can be attachment or replacement of imported belt and pulley.
Please supply drawing when you order. We can also draw for clients as their supplied specification, hole, key way and width.
The tolerance of outside diameter, end bounce 7 wrap direction of pulley should conform to Form1,form 2 & form3.
Width of different specification of timing belt and pulley must conform to form4.
Outside diameter of pulleys and size should be as form's regulation.
We can also produce pulleys even sizes are not in the form.
The material of pulley mainly composed of carbon steel, if possible aluminum alloy nylon can also be employed; if external diameter is larger than 250 mm, iron is used.

What do Underdrive Pulleys do? Underdrive pulley systems increase engine horsepower by reducing the amount of power required to drive external engine accessories. For example, the alternator, power steering, water pump and air compressor rob horsepower from the engine. By replacing factory-sized crank and accessory drive pulleys with a resized pulley, the accessories are slowed, resulting in more horsepower available to the drive wheels. Typically, a set of Auto Specialties street pulleys will increase horsepower by 12-15, and increase mileage by 2 to 3 MPG. All pulleys are manufactured from Billet Steel or Aluminum, exceeding factory quality.
ASP LS1 underdrive pulley kit reduces parasitic power losses associated with high accessory speeds, freeing up additional HP. It also reduces the rotating inertia on the front of the crankshaft allowing for faster revving. We have seen just over 13 rear wheel hp increase with this kit installed on stock LS1s.

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