The 'NU' prefix in the bearing's designation refers to its design configuration. It signifies a 'free inner ring', meaning the inner ring can move axially relative to the outer ring, thus accommodating shaft expansion. This flexibility is crucial in systems where thermal expansion or dynamic loading may cause changes in the shaft's length. The D-5 thrust ball bearing is a popular variant of the thrust ball bearing that is manufactured in India. It is designed to handle high axial loads and is commonly used in heavy machinery and industrial applications. The D-5 thrust ball bearing is known for its durability, reliability, and high performance. 4. Grinding The raceways of the inner and outer rings are ground to achieve the required dimensional accuracy and surface roughness. The 31318 bearing is an essential component in many industrial machines and equipment. It is a type of roller bearing that is commonly used in a variety of applications, including automotive, agricultural machinery, construction equipment, and more. Load Capacity