Weinheim, Germany -KlÃ¼ber Lubrication and Freudenberg Simrit have combined forces to offer designers a system that matches the lubricant with the seal material. The idea is to ensure that the seal and lube are compatible. This should, say the two companies, reduce cost, improve reliability and deliver real-world seal lifetimes that meet or exceed design predictions.
According to a press release put out on the "Lube & Seal" concept, Freudenberg Simrit and KlÃ¼ber Lubrication have combined their know-how in their specific fields, allowing them to offer comprehensive solutions with optimally tuned combinations of seals and lubricants from a single source.
The way sealing ring and lubricant interact is of decisive importance both for the function and the life expectancy of any drive unit. However, the German DIN standard calls for a longevity test based on NBR 28 as a reference elastomer. Many modern seals do not use this material, and are sensitive to different chemicals, so the longevity test is misleading. "Gear oils that have proven compatible in this DIN test are not always so in practice." says the two companies.
"The Lube & Seal experts regard the seal and its lubrication as an integral system. The goal of this approach is to minimise the number of failures in relation to the seal's service life, i.e. failures should not occur before the defined wear or age limit of the lubricant has been exceeded.
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Press release from Freudenberg