Q:

What are some common shaft sizes for oil seals?

A:

Quick Answer

Common shaft sizes for oil seals range from 0.110 inches to 79.530 inches for electric motors, drives and gearboxes, and from 0.180 inches to 8.270 inches for automotive and agricultural applications. Shaft sizes of more than 78 inches are typical for paper or metal mills.

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Full Answer

Manufacturers often use nitrile and fluoroelastomer when making oil seals for shafts of varying sizes. Nitrile rubber, also called Buna-N, seals shafts effectively in temperatures ranging from well below zero degrees Fahrenheit to above 212 degrees Fahrenheit. Fluoroelastomer maintains tight seals in temperatures up to 400 degrees Fahrenheit and withstands pressure up to 250 pounds per square inch. Both rubbers resist water, solvents and gasoline products.

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