TSUBAKI Top Chains
Plastic Rails

Plastic rail to support top chain running.

Tsubaki offers a complete line-up of plastic rails, including a versatile ultra-high molecular polyethylene type and one using a low friction, low wear plastic type, and specially designed for use in dry environments.

Ultra-high molecular polyethylene (UHMW-PE)

Features excellent slideability, wear resistance, chemical resistance, and impact resistance, and will not absorb water. They are widely used as rails, linings, and as industrial equipment parts.

Plastic rail specifications

P Series plastic rails (Code: P)

• A plastic rail featuring ultra-high molecular polyethylene (UHMWPE), traditionally used for versatile products.
• Recommended for use with stainless steel chains. When using together with plastic chains, we recommend using under wet conditions. (There is a possibility that more wear debris will be generated under dry conditions.)
• Operating temperature range: -20 to 60°C
• Not for use in contact with steam.

PMW Series plastic rail (Code: PMW)

• A low friction, wear resistant version of the P Series plastic rail. The amount of wear debris generated can be brought down to M Series plastic rail levels.
• The coefficient of friction on the chain can be reduced by 20% of traditional P Series plastic rails.
• Operating temperature range: -20 to 60°C
• Not for use in contact with steam.

M Series plastic rail (Code: M)

• Plastic rail specially designed for use in dry environments. Recommended especially for applications where wear debris needs to be avoided.
• Operating temperature range: -20 to 80°C
• Not for use in wet environments.

PLF Series plastic rail (Code: PLF) — Low friction, wear resistant series

• Can reduce the coefficient of dynamic friction compared to traditional plastic rails, and so suppresses the generation of wear debris in dry environments.
• 10 – 40% lower than PMW Series rails, 30 – 50% lower than P Series rails.

Photo of wear debris generated in in-house tests
(Comparison of wear after 500hrs)

Comparison of dynamic coefficient of friction and wear with low friction, wear resistant PLF Series

[Coefficient of dynamic friction and wear under in-house test conditions]
Chain: TTP826-LFB, Chain speed: 60m/min, Environment: Dry, Ambient temperature (with P Series rails as 100)
*Live load: 10kg (wear comparison graph)