HD⚡SWITCH: Engineered Performance ULTIMATE PROTECTION: Spring Loaded Seal Keeps Out Harmful Dirt, Dust & Water IMPROVED DESIGN: Bore Sealant Coating Fills Imperfections For a Better Seal 1 KIT INCLUDES: (2) Bearings (Cup & Cone), (1) Upgraded Lower Seal Buy with Confidence. Our bearings are Engineered to provide Maximum Performance for the Most Demanding Applications. Each Precision Machined Bearing is made using the Highest Quality Steel to Provide Superiour Accuracy and Reduced Friction. By minimizing the amount of friction we are able to Increase Bearing Life, and more importantly, Decrease Downtime. Better Quality, Longer Life, Less Downtime.