7T-4628: 57mm Outer Diameter Steel Track Master Bushing

Description: Track bushings, along with the pins, hold the track links together and are part of the sealing arrangement between the link and the bushing. Attributes: Cat® Sealed and Lubricated Track (SALT) seals lubricant into your undercarriage system and keeps abrasives out. It eliminates internal pin and bushing wear to reduce maintenance costs and downtime, while increasing service life and serviceability. SALT offers a universal undercarriage configuration for a wide range of underfoot conditions when coupled with a track design that matches your machine and operating environment. Stepped wall bushings have a larger diameter in the wear area to provide additional wear life.