La structure de base du joint à huile squelette de type V comprend le corps du joint à huile, le squelette de renforcement et le ressort spiral autoserrant.

The skeleton plays the role of strengthening and keeping the shape and tension of the oil seal, and the secondary lip of the V-type skeleton oil seal plays the role of dustproof, preventing the outside world's dust, impurities and so on from entering the inside of the machine.