The 31311 TTN Tapered Roller Bearing Set is engineered for reliable performance in heavy-duty applications. With a bore size of 55 mm and an outer diameter of 120 mm, these bearings are designed to handle significant loads efficiently. Constructed from high-quality materials, they provide excellent resistance to wear and tear. The tapered design allows for optimal load distribution, reducing friction and enhancing overall efficiency. Compliant with ISO standards, these bearings are suitable for a wide range of industrial machinery.