Description:Cat® Boom is a structure component used to tilt and lift the attachments. Cat® Boom must endure high loads and frequent direction and position changes. Cat® Booms are designed and manufactured to meet these types of demands. Cat® Sleeve Bearings support rotational movement between machine frames linkage and work tools. They are found mostly in the arms and buckets of machines. Caterpillar design engineers match the right combination of dimensions, materials, surface finish, and manufacturing processes, to each part to enable them to work and wear effectively with all the other neighboring and dependent parts. Cat® Heavy Duty Sleeve Bearings are built with high grade steel and hardened for exceptional strength and wear life. They work as a system for your specific Cat® machine and are tested and proven in the world's most severe applications. They give you maximum strength and resistance and result in a lower overall cost, outstanding strength and fatigue life, superior resistance to abrasive wear, and exceptional protection against pin spalling and galling, even in high-load conditions.Application:Consult your owner's manual or contact your local Cat® Dealer for more information.