As a result of using this product for my industrial and scientific projects, I found that it is a great value for money .The quality of the ball bearing is impressive, and it has a sealed design that provides excellent protection against contaminants making it perfect for harsh environments. the bearing runs smoothly and provides reliable power transmission for my machines. However, the only downside is the lack of clear labeling on the packaging. Overall, this is a reliable and high-quality product that I would highly recommend to anyone in need of a durable and efficient ball bearing..