UHMBR SH - Overview
UHMW (Ultra High Molecular Weight Polyethylene) is a common machinable plastic known
for durability, versatility and cost-effectiveness as well as abrasion, impact and chemical resistances.
UHMW plastic features a molecular weight that ranges from 3.1 million to 100 million grams per mole,
with an abrasion resistance that continues to improve as molecular weight increases.
Reprocessed UHMW is an eco-friendly and economical alternative to standard virgin UHMW
that uses a blended version of virgin and recycled UHMW. Reprocessed UHMW is excellent
for non-food applications and offers all the benefits of standard UHMW at a much more
cost effective price. Reprocessed UHMW features the same low coefficient of friction as
standard UHMW while also offering a slightly better wear resistance. Reprocessed UHMW
is used extensively for chain guides, wear rails, chute liners, truck liners, hopper liners and
many other applications where excellent wear properties are required. The standard color
of reprocessed UHMW is black, but also comes in green.
Machinability & Tolerance Warnings:
There is some inherent stresses in the material so if you need tight tolerance parts you may want to
consider a material such as acetal. Standard diameter tolerance of the rods is ±10% This material can
be machined and should not shrink due to the machining process. UHMW expands and contracts
considerably with temperature change. Other materials are available if you need a lower coefficient
of linear thermal expansion. Call our experts at (888) 423-3902 for more information or questions
about what materials to use for your application.
Low Coefficient of Friction
Reprocessed UHMW is used in applications where high levels of friction are likely to arise including
conveyor guard rails, augers and wear strips, belt scrapers, chain guides, and idler rollers. Due to
an extremely low coefficient of friction, its inherent lubricity minimizes heat-generating friction
that tends to gradually destroy steel parts, and ensures smooth, noiseless operation.
High durability, low friction and wear resistance are key reasons why reprocessed UHMW is the
material of choice for a myriad of applications. Reprocessed UHMW offers an extremely low
coefficient of friction due to a specialized built-in lubricant that replaces unwanted grease
and oil. It also enhances efficiency and productivity in many applications. Reprocessed
UHMW's self-lubricating formula helps to extend part life because the internal lubricant
ensures that parts will not break or need replacement.
Odorless, tasteless and nontoxic
Highly resistant to corrosive chemicals (except oxidizing acids)
Extremely low moisture absorption
Very low coefficient of friction
Highly resistant to wear and abrasion
Easy to fabricate and machine with common shop and woodworking tools
Reprocessed grades, enhanced bearing and wear grades available, FDA compliant grades available
for greatly extended part life
Reduced maintenance costs and energy consumption
Extends equipment life