Saint-Gobain Rulon® 641 Grade Bearing/Seal PTFE
Subcategory: Fluoropolymer; Thermoplastic; PTFE; Polymer
Material Notes:
Description: Rulon® is the Saint-Gobain trade name for their family of proprietary PTFE compounds. This family of materials offers the combination of high compressive strength, low coefficient of friction, and excellent abrasion and corrosion resistance while running without lubrication. They are used in bearing and seal applications from temperature extremes of 400°F to over 500°F with and without additional lubricants. A unique property of Rulon® is the absence of stick slip, that is, erratic low-speed motion. PTFE = polytetrafluoroethylene
641 Grade Bearing/Seal PTFE: FDA compliant, this formulation was specifically developed for food and drug applications. Rulon 641 is designed to run dry without any external lubrication and is compatible with 303 and 316 stainless steel mating surfaces. Rulon 641's high temperature and low wear properties offer major advantages as compared to other competitive FDA bearing materials, such as UHMWPE (Limited temperature tolerance and low load capacity at elevated temperatures) and virgin PTFE (Unacceptable wear properties and low load capacity at elevated temperatures). Rulon 641 is available in standard bearing sizes from 1/8" to 3" ID's White in color.
Suitable for use in environments of steam, wet, dry, vacuum, or FDA type. Mating surface of 25 Rc or harder Steel. Material has electrical and thermal insulation properties. Markets for 641 grade include Appliances, Automotive, Dairy/Food/Beverage, Industrial, Medical, Transportation.
Information provided by Saint Gobain Performance Products.
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