: Securing wheel bearings or critical axle components where safety is paramount. Heavy Machinery

ISO 7035 does not mandate material; it specifies the groove dimensions. Material choice (NBR for mineral oil, FKM for high heat or phosphate esters, EPDM for brake fluids) depends on the application fluid and temperature.

The term "7035" is also frequently used as a color code () for industrial paper holders, enclosures, and coatings.