These USBB Brand ball bearings are made of high quality Chrome Steel and are pre-lubricated with grease from the factory and are available in both RS (Rubber Seals) and ZZ (Metal Shields) configurations.. The 6000-2RS Series ball bearing has two contact rubber seals, one on each side of the ball bearing. The 6000-ZZ Series bearing has two non-contact metal shields, one on each side of the ball bearing. If your application requires a 6000 Series ball bearing with only one seal or shield you can simply remove one of the shields or seals. This 6000 Series ball bearing is a high quality product and can operate efficiently in many demanding applications. Premium Benefits Include Textured Buna N Nitrile double lip seals Wide temperature range Mobil Polyrex EM2 (-40 to +350 degrees) lubrication Noise tested before and after lubrication Passes V2 noise vibration standards for smaller bearings and V3 standards for larger bores. Meets or exceeds electric motor requirements Matched ABMA grade precision balls for roundness Finely honed super-finished raceways for long life and low noise Meet or exceed ABEC 3 tolerances for high quality level Interchange information is provided as a guide only. Dimensional & performance differences may apply. Consult sales or engineering for interchange or suitability assistance.

These USBB Brand ball bearings are made of high quality Chrome Steel and are pre-lubricated with grease from the factory and are available in both RS (Rubber Seals) and ZZ (Metal Shields) configurations.. The 6000-2RS Series ball bearing has two contact rubber seals, one on each side of the ball bearing. The 6000-ZZ Series bearing has two non-contact metal shields, one on each side of the ball bearing. If your application requires a 6000 Series ball bearing with only one seal or shield you can simply remove one of the shields or seals. This 6000 Series ball bearing is a high quality product and can operate efficiently in many demanding applications. Premium Benefits Include Textured Buna N Nitrile double lip seals Wide temperature range Mobil Polyrex EM2 (-40 to +350 degrees) lubrication Noise tested before and after lubrication Passes V2 noise vibration standards for smaller bearings and V3 standards for larger bores. Meets or exceeds electric motor requirements Matched ABMA grade precision balls for roundness Finely honed super-finished raceways for long life and low noise Meet or exceed ABEC 3 tolerances for high quality level Interchange information is provided as a guide only. Dimensional & performance differences may apply. Consult sales or engineering for interchange or suitability assistance.