Rulon® Fluoropolymers

Rulon® 641
Rulon®
641 PTFE

Rulon® 641 is manufactured from FDA and USDA compliant materials possessing excellent loads and wear characteristics while meeting the requirements for USP Class VI.

It offers excellent, continuous non-lubricated service up to 10,000 PV – higher for intermittent service. While the load capacity of Rulon® 641 is generally limited to 1,000 psi (6.9 MPa) at room temperature, deformation is a function of wall thickness, temperature and load.

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Its compatibility with a wide array of mating surfaces, as well as harder metals, make it a good choice for most food and pharmaceutical bearing applications.

Download the Rulon® Fluoropolymer Materials Comparison
Download the Rulon® 641 Material Datasheet
Standard Specifications
Materials

White fluoropolymer
Engineered mineral filled

Service conditions

Temperature: -260°C to +315°C
Max load (dry): 6.9 MPa
Max Speed: 2m/s

Features

Friction coefficient: 0.10 - 0.30
Max PV (dry/lub): 0.35 MPa.m/s

Dimension

Rods and Tubes: (ϕ) 1.2m x (L) 3m
Sheets: (L,W) 610 mm x (ϕ) 80mm
Tapes: (W) 1m x (T) = [0.086;6] mm

  • Superior dry friction
  • Stick/slip elimination
  • Hardware abrasion reduction
  • Minimal moisture absorption
  • Dimensional stability in all chemicals

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In addition to the more tailor-made solutions offerings, for example the Omniseal Solutions™ piston rings, typical offerings of Rulon® 641 include automatically molded bearings & components, skived sheets, stamped / machined formed seals, extruded shapes, and machined parts / shapes.

Applications include pumps, mixers compressors, appliances, chute liners, insulators, linear slides, shaft bearings, wear bands, and seals.. This material can be used in a variety of different environments, including, direct contact with human tissue and fluid. It can also withstand strict sanitation requirements, and its white, stain-resistant color indicates a sanitary compound.

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