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Saint-Gobain's Rulon® J Polymer Material Improves Bike Performance of High-End Rear Shock Absorber
Bicycle-bike users experience a more comfortable and safer ride with Saint-Gobain's Rulon® J glide rings.
By: Saint-Gobain Seals
Since this high-end shock absorber uses hydraulic damping technology, a sealing component (glide ring) is required to prevent hydraulic fluid from leaking. Other requirements for this component include high wear resistance, gentle contact with an aluminum shaft, self-lubrication, and no misalignment. The manufacturer previously used a glide ring made from an alternative high-performance plastic; however, it did not meet the challenging leakage requirements.
Searching for a way to improve, the manufacturer tested Saint-Gobain Seals’ Rulon® J glide rings with positive results. Due to Rulon® J material being non-abrasive, the polymer works exceptionally well against softer mating surfaces such as aluminum. Its tribological properties demonstrate versatility in operating as both a seal and bearing. Their Rulon® J product also features one of the lowest coefficients of friction among commercially available blended PTFE materials, and it eliminates stick-slip for start/stop applications. Aside from being used on rear shock absorbers, Rulon® J material is also being used on the bogie of the newest 7000 series trains in the Washington DC metropolitan area (due to its enhanced stability on the curved tracks).
Saint-Gobain Seals is the only source of genuine Rulon® polymer material. This brand consists of a family of proprietary, blended PTFE materials for the most demanding applications and environments such as extreme dryness, cryogenic temperatures, water, steam and hydrocarbon fuel. Each standard Rulon® material as well as hundreds of other custom Rulon® blends have been developed to meet a set of specific application requirements while also remaining versatile. For example, Rulon® 641 is ideal for food, beverage, and pharmaceutical processing applications (having achieved Regulation (EU) No. 10/2011 and USP Class VI and/or FDA Title 21CFR §177.1550 certifications);
About Saint-Gobain Seals (www.seals.saint-
Saint-Gobain Seals is a business unit under Saint-Gobain Performance Plastics’ Engineered Components division; our parent company is one of the world’s top 100 industrial groups. With more than 50 years of manufacturing experience and an established global presence (with strategic sites in Garden Grove, California, USA; Kontich, Belgium; and Minhang, Shanghai, China), we offer a diverse range of innovative sealing and polymer solutions:
· OmniSeal® Spring–Energized Seals
· OmniLip™ PTFE Rotary Shaft Seals
· OmniFlex™ Fluoroelastomer Seals
· Rulon® High-Performance Fluoropolymer Compounds
· Meldin® 7000 Thermoset Polyimide Materials
· Meldin® HT High-Performance Thermoplastic Materials
Other products include Fluoroloy® (high-performance custom-formulated compounds and alloys), cup seals, hydraulic seals, metal seals, v-packings, piston rings, Marathon® (valves and vacuum pump diaphragms), Transband® (PTFE creepage band), custom parts, polymer bearings and stock shapes.
The majority of seals and polymer components manufactured are custom designed and matched with the best materials to optimize their performance in various applications and markets.
+1 800 544 0080