Review on 💨 High-Speed Rotational NSK Non-Contact Clearance at 17000 RPM by Talapon Blackburn

High quality NSK bearing I used this to overhaul my 8 year old Pentair 2 HP pump. I have compared them to Nachi bearings (Japanese) which are equal in static and dynamic load capacity, but the NSK bearing is rated at 17,000 rpm versus 12,000 rpm for Nachi. It was easy to buy them for about the same price. With these bearings, I could hear the pump getting louder over time through my bedroom wall. Now I can't say it works at all (like when it was new).