The York S1-029-24419-000 is a necessary component of the HVAC systems. This is a 1-inch ball bearing with a collar that is designed to minimize friction and allow easy rotation in different HVAC systems. This component is made of high-quality steel for the bearing and another metal for the collar so that it can perform well and for a lifetime. The ball bearing minimizes contact resis... https://www.partshnc.com/1-ball-bearing-wcollar