Tapered roller bearings

Tapered Roller Bearings

Tapered roller bearings are separable with tapered raceways on the inner and outer rings. This bearing is divided into different structural types, such as single-row, double-row, and four-row tapered roller bearings based on the number of rows of rollers installed. Tapered roller bearings mainly bear radial loads and can also bear bidirectional axial loads. Under pure radial loads, the bearings will move without reducing the load-carrying capacity. When the axial load is small, the tapered roller bearing can bear force on one side, and the bearing capacity is halved at this time. When the axial load is large, it is necessary to use a bearing that can withstand bidirectional axial force.

Classification of tapered roller bearings

Tapered roller bearings are usually divided into three categories according to the number of rows of rolling elements: single-row tapered roller bearings, double-row tapered roller bearings, and four-row tapered roller bearings.

Single-row tapered roller bearing: The rolling elements of this bearing are one row, and the raceways of the outer and inner rings are tapered, including TS (stamped steel and pin cage type), TSF (with flange outer ring), and TSL.

Double-row tapered roller bearings: The rolling elements of this bearing are two rows, and the raceways of the outer and inner rings are tapered, including TDO (double row, double outer ring), TDI (double row, double inner ring), TDIT (double inner ring with tapered hole), TNA (double row, non-adjustable), TNASW (double row, non-adjustable, with end face oil groove), TNASWE (double row, non-adjustable, with end oil groove, with extended large rib), 2TS-IM, 2TS-DM, 2S, SR.

Four-row tapered roller bearing: The rolling elements of this bearing are four rows, and the raceways of the outer and inner rings are tapered. Includes TQO (composed of two double cone components, one double outer ring, two single outer rings), TQOS (TQO seal series), TQI (one double cone component, two single cone components, two double outer rings or Composed of four single outer rings), TQIT, TQITE.

Naming rules for tapered roller bearings

The naming rules of metric tapered roller bearings are as follows:

Materials of tapered roller bearings

The materials of tapered roller bearings mainly include bearing steel, carburized steel, stainless steel, and plastic.

Bearing steel is one of the most commonly used materials for manufacturing tapered roller bearings, especially for high hardness and contact fatigue strength requirements.

Commonly used bearing steels include SKF-3, GCr15, GCr15SiMn, GCr6 and GCr9, etc. These materials can reach the hardness of HRC61-65 after heat treatment.

Another commonly used material is carburized steel, including TIMKEN3311, G20CrNi2MoA, G20Cr2Ni4A, 20CrMnTi, etc. Carburized steel has better toughness and impact load resistance than bearing steel.

Applications of tapered roller bearings

Tapered roller bearings can bear combined radial and axial loads, and the contact angle determines the axial load capacity; the larger the contact angle, the greater the axial load capacity. Mainly used for Steel Production Equipment, Automotive, Construction/Transportation/Agricultural Machinery, Renewable Energy, Railroad Cars, Cement mill roller and other industries.

Advantages of FV taper roller bearings

FV Bearing has designed and manufactured thousands of sets of bearings for steel plants, cement plants, and wind power plants. It has rich experience in the above fields. The engineering team often visits the field and has in-depth technical exchanges with front-line engineers. They have a clear understanding of the working conditions. In the chest, know yourself and the enemy, and truly serve customers.