This product has BEEN an excellent addition to my industrial and scientific equipment .As a result of using this product, I found that its rotational capacity and durability are top-notch. Its ability to handle up to 35500Rpm is impressive and it operates smoothly without any noise. The build quality is impeccable and can handle heavy-duty tasks with ease. The only drawback is its price as it may be a bit expensive for some budgets. Overall, these bearings are highly recommended for anyone looking for dependable and long-lasting power transmission products..