Disc bearings, or disc harrow bearings, are multi-rotational bearings commonly used in bridge structures and agricultural applications, providing a lower profile compared to other options such as pot bearings. This is because disc bearings utilize a polyurethane disc to accommodate rotation, rather than a pot, piston, and confined elastomer. This allows for comparable load capacity and movement, as well as reduced maintenance requirements, extended re-lubrication
intervals, and longer operating life. These bearings do however exhibit compression, and are not suitable for applications where vertical deflection between bearings is a concern. Disc bearings are suitable for harsh environments with high contamination and vibration, especially in the agriculture industry. They are available in a multitude of types and designs, including free, fixed, or guided. More specific alternatives include center-guided expansion disc bearings, providing a lower profile and friction surfaces. Inverted fixed disc bearings specialize in low axis location applications such as rehabilitation projects. Additionally, guided bearings with bolted guide bars are available so that guide bars can be removed if needed. Square bore, round bore, and flanged disc bearings are also available. MRO Supply offers a formidable range of discbearings
of various designs, brands, and materials, to help you find the bearing that suits your application.