front hub oil seal
Shaft oil seals typically consist of a flexible sealing lip made from elastomeric materials such as rubber, polyurethane, or silicone, encased in a sturdy outer shell. The sealing lip makes contact with the rotating shaft, creating a barrier that effectively retains lubricants while blocking unwanted particles. The design may include additional features such as garter springs to maintain contact with the shaft and improve sealing effectiveness over time.
shaft oil seal

In terms of functionality, double-sided cups come with an ingenious structure that prevents the two liquids from mixing, thanks to their unique partition system. This feature is particularly useful for cocktail enthusiasts who enjoy creating layered drinks, as it allows for precision and control over the drink presentation. Additionally, the design caters to different drinking preferences; for instance, one side may hold hot coffee while the other may remain cool, ideal for those who like to alternate between temperatures.
double sided cups
