Taper Roller Bearings, For Industrial

Tapered roller bearings are the bearings which may take large axial forces along with having the ability to support large radial forces.

Tapered roller bearing contains an inner ring (cone), an outer ring (cup), a cage and rollers that are profiled to deliver the load consistently. They've high radial and axial (like thrust bearings) load capabilities at low to intermediate speeds. Taper roller bearings can be found in single-row, two-row and four-row styles. With single-row bearings, the thrust load capacity is approximately 60% of the radial capacity. Double-row tapered roller bearings have got a higher radial load capacity which enable it to handle thrust loads coming from both directions. The rollers could be set up so the contact lines towards the races converge or diverge towards the axis of rotation. Diverging double-row bearings raise the rigidity of the shaft mounting, but converging bearings usually do not. Some other configurations for double-row bearings have a single outer ring along with two inner rings, or two outer rings plus a single inner ring. Four-row taper roller bearings are made up of four rows of alternating converging and diverging rollers.

Most taper roller bearings are made from alloy steels or low-carbon steels. Some applications demand the utilization of case-hardened or thorough-hardened, high-carbon, bearing-quality steel. High-carbon grades of steel do not demand carburizing and may be case-hardened by induction heating or thorough-hardened by traditional heating methods. When low-carbon, carburized grades of steel are utilized, carbon is introduced as soon as the taper roller bearings are machined to a depth sufficient to make a hardened case which can support bearing loads. The addition of carbon and alloys makes sure the appropriate mixture of a hard, fatigue-resistant case along with a tough, ductile core.