This bearing from the Bearings category for Power Transmission Products is a winner .Industrious and Scientific it is pre-lubricated which makes it very effective. The size is ideal for a wide variety of applications, and it performs beautifully. The only downside is that it is a bit pricier than some other bearings out there, but its high quality justifies the cost. Overall, this is a great option for anyone in need of a reliable bearing..