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Self lubricating plastic bushes: Are they right for you?

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article image Self lubricating plastic bushes
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Allplastics Engineering presents a wide range of thermoplastics bushes and bearings, providing an extremely cost-effective alternative to conventional metal bearings. 

Allplastics’ plastic bushes are usually made from a superior nylon material impregnated with molybdenum disulphide (MoS2) that lowers friction, reduces the need for lubrication and prolongs the life of the bush.

Allplastics also uses other thermoplastics such as Acetal (Delrine), UHMWPE, Polypropylene, Polyester (Ertalyte) and PEEK to suit specific conditions and applications. 

Key applications of Allplastics’ plastic bushes include sleeves, electrical insulators, bolt hinges, dry running bearings, packers and exercise machines.

Allplastics’ self lubricated plastic bushes are generally designed with an interference fit in the OD (Outer Diameter) to allow for a good push-fit into the housing. An additional clearance needs to be allowed in the ID (Inner Diameter) to have correct clearances for most applications when the bush is installed. 

Other factors such as temperature variations, moisture absorption and bearing speed may influence the clearance requirements. Allplastics’ machined bushes can be plain or with shoulder (flanged). Sizes range from 6mm up to 300mm in diameter.

Key benefits of Allplastics’ plastic bushes include low friction, light weight, non corrosive, self lubricated, insulating and good chemical resistance.

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