We have 15 years' experience in designning and manufacturing special bearings,non-standard bearings,plastic pulleys,nylon pulleyswith various material. Our production range can satisfy all needs as far as dimensions, colours and the research of the most suitable materials to be used. Diameter: All special sizes or custom sizes available from us.We also can produce according to customers' drawingsor samples. Edge profiles of any shape: "V" shape for rails "U" shape for bent rail and guides Flat or bent shapes for drawers and sliding doors/windows Special edge profiles on request Materials: 1.Metal included: 11SMnPb37 Carbon Steel Brass Alloy P-CuZn40Pb2 UNI 5705 Stainless Steel AISI 303 /304 / 420 / 440 Chrome Steel 100Cr6 (AISI 52100) 2.Plastic Coatings: Even in this field we have a big choice: Type 6 Polyamide (Nylon 6 ®) Type 6.6 Polyamide (Nylon 6.6 ®) Fire Proof Nylon (Self Extinguishing Properties) Acetal Resin (Delrin 100/500/900 ®) Rubbers (Vulkollan ®) Furthermore, on request, we can add to the plastic compound other raw elements such as FIBER GLASS or the MOLYBDENUM BISULPHIDE (MoS2) to improve the plastic mechanical characteristics (i.e. shove resistance/duration/loading capacity) or to better bearing sliding. You just inform us what your general idea or drawings then all will be done well by our factory.Most competitive with good quality,fast delivery time and best service is our aim. Now,we have developed more than 2000 different types special pulleys,plastic pulleys,nylon pulleys,etc.For more details,please contact with us at your feel free.