Hebei Hankai 25x47x7 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

Interestingly, sodium bicarbonate also holds value in dental care. Many toothpaste brands include baking soda for its mild abrasive properties, which help to remove surface stains from teeth and promote oral hygiene. Additionally, its alkaline nature can help combat bad breath, making it a popular remedy for maintaining fresh breath.
sodium bicarbonate is
