Standard 3760/3761
Nitrile (also known as Buna N)
GV
Understanding Tek Screws for Thick Steel
Standard 3760/3761
GV
O.D. (outside diameter) surface The O.D. surface affixes the oil seal to the housing and prevents leakage , through the fitting area, of substances to be sealed, while excluding contaminants.
Like any element of the engine, oil seals are subject to wear. Over time they can lead to possible leaks of lubricating liquid.
The other way oil seals work is by stopping outboard materials that can damage the machine or contaminate its lubricant. The outboard materials that the oil seal will need to stop depend on the application. However, the most common kinds are dirt, moisture, and the particles produced during manufacturing.
Leather
Recommended for abrasive applications
Good running properties, due to the impregnated seal lip
Can be used on shafts which have a surface roughness outside the range for rubber seals
Not suitable for water