1-Piece Stainless Steel PTFE Double-Lip Shaft Seal 28 × 40/47 × 7 mm for Rotary Screw Air Compressors

Description

• Product name: PTFE oil seal for air compressors
• Type: Double-lip, 1 piece
• Material: PTFE and stainless steel
• Thermal stability: Cracking temperature above 400; operates normally from -60 to +350
• Wide, springless lip structure with a 57 mm shaft contact width to help maintain an adequate oil film
• Insensitive to shaft eccentricity; operates normally with a runout error of 0.4 mm

Oil-resistant during dry running and insufficient lubrication. Heat-resistant, wear-resistant, corrosion-resistant, and chemically resistant. Suitable for special applications in general mechanical engineering and the chemical industry. Applications include screw air compressors, compressors, rotary joints, mixers, pumps, centrifuges, chemical processing equipment, agitators, and more. Compared with rubber oil seals, PTFE oil seals have no dynamic spring structure and feature a wider lip. Rubber oil seals have a spring-loaded lip opening and a shaft contact width of only 0.30.5 mm, while PTFE oil seals have a shaft contact width of 57 mm, helping maintain an adequate oil film. They are insensitive to shaft eccentricity and can operate normally with a runout error of 0.4 mm.

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