METAL CASE & SPRING

The other major components of an oil seal are the metal case and garter spring. Below lists the material specification MKS uses of its components.


CASE SPECIFICATION
SPECIFICATION NO. APPLICATION
JIS G3141 General
30302 ~ 30304 Special CorrosionResistance Condition
The metal case generally is produced from carbon steel for general applications in oil or grease. For special applications when sealing sea water or corrosive fluids or gasses, stainless steel can be applied at an increase in price. With water applications, cost may be reduced.

SPRING SPECIFICATION
SPRING
SPECIFICATION NO. APPLICATION
JIS G3506 General
30302 ~ 30304 Special CorrosionResistance Condition
By using a rubber covered design with carbon steel case. For the garter spring, piano wire is used for general applications. Where corrosion resistance or extreme heat resistance is required, stainless steel is available.