Type SA single lip oil seal - iron case combination, inner half wrapped, single main lip oil seal, spring inside.
It belongs to rotary oil seal, used for sealing with oil and dust-free occasions, the highest pressure is 0.03mpa (0.3kgf/m2), widely used. Choose different materials according to different use medium, pressure and temperature. Common materials include: butadiene rubber SA skeleton oil seal, fluorine rubber SA skeleton oil seal, silicone rubber SA skeleton oil seal, etc.. 
