OEM No/Model: 2121-2215068
Rubber Bellows 2121-2215068
Rubber Bellows
Rubber bellows and convoluted rubber dust boots are versatile seals used in a wide range of applications to seal dust and other environmental elements in applications with a stroke or designed range of motion. Rubber bellows and convoluted dust boots can be custom designed for the application and are available in a range of rubber materials including EPDM, TPE and Silicone.
Rubber Bellows Structure:
Rubber Bellows can be engineered in a number of structures to meet various application requirements. The most common structure is composed of two connectors and a convolution region where the connectors provide the assembly interface and the convolution (bellows) region provides for the design application travel.
Rubber Materials:
Customers can select from our current material catalogue or we can develop a new material for your unique application. The more common materials utilized for below applications are as follows:
Material |
Abbreviation |
Temperature Range (dry heat) |
Aging Weathering, Ozone |
Resistance to Oil & Grease |
Water Swell Resistance |
Flex-Fatigue |
Economy of Material |
Material Notes |
Chloroprene (Neoprene) | CR | -40F to 250F | Good | Good | Average | Very Good | Good | exposure to refrigerants, can be compounded for FDA applications |
Nitrile | NBR | -22F to 212F | Poor | Very Good | Good | Good | Very Good | excellent resistance to petroleum based oils and hydrocarbon fuels |
Ethylene-Propylene | EPDM, EPM | -60F to 300F | Very Good | Poor | Very Good | Good | Very Good | |
Silicone | VMQ | -75F to 450F | Very Good | Average | Very Good | Very Good | Average | medical and aerospace applications |
Fluorocarbon | FKM | 5F to 390F | Very Good | Very Good | Good | Average | Poor |
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