This bearing is designed for use in select hot tub pump motors with a 17mm bore and 40mm outside diameter. It is made with high-quality materials to ensure optimal performance. 

Specifications - 

• Deep Groove Ball Bearing Design
• Precision quality for long life in hot tub pump motors
• Internal and external rings are chrome steel
• Ball bearinsare made from  chrome steel
• Self Lubricating (Grease)
• Dimensions - 17mm x 40mm x 12mm
• Internal diameter -  17mm shaft
• Outside dimension -  40mm 

Fits the following pump motors - 

• Waterway  Executive 56/ 48 frame pumps
   • A.O.Smith, Century, U.S. Motor, Magnatek
• Aqua Flo hot tub pump XP, XP2e and XP3 range 
  • Emerson, U.S.Motors, Magnatek. U.S.Motors