Thrust roller bearing

date:12-04-11, 04:56 PM

Item name:Thrust roller bearing

Model: 80000 series.

Application: Heavy machine, Petroleum drilling machine, Vertical machine, Crane and etc.

Description: Thrust roller bearing are generally used to support combined load mainly consisting of axial load and the radial load must not exceed 55% of axial load. This kind of bearing has a low friction factor, high rotational speed and aligning function.

Single direction Thrust roller Bearings

Single direction Thrust roller Bearings consist of a shaft washer, a housing washer and a ball and cage thrust assembly. The bearings are separable so that mounting is simple as the washers and the ball and cage assembly can be mounted separately.Single direction thrust ball bearings, as their name suggests, can accommodate axial loads in one direction and thus locate a shaft axially in one direction. They must not be subjected to any radial load.

Double direction Thrust roller Bearings

Double direction Thrust roller Bearings consist of one shaft washer, two housing washers and two ball and cage thrust assemblies. The bearings are separable so that mounting is simple. The various parts can be mounted separately. The housing washers and ball and cage thrust assemblies are identical to those of the single direction bearings.Double direction thrust ball bearings can accommodate axial loads acting in both directions and can thus serve to axially locate a shaft in both directions. They must not be subjected to radial load.

Thrust roller bearings are intended for applications requiring high axial load carrying capacity. This type of bearing supports the load at right angles to its direction of application and, thereby, fully utilizes its capabilities in the accommodation of working loads. thrust roller bearings are available in single acting, double acting, self-aligning, combination, cross roller, and other types. They are manufactured in sizes that range from an l.D. of 2 inches (50mm)to an outer diameter of 25 feet (7.6m). Thrust roller bearings can be divided into cylindrical roller bearings(80000 type),thrust taper roller bearings(90000 type),and thrust spherical roller bearings(29000 type).they are separation bearings,have greater rigidity,use small space,can bear greater axial load,have low sensitivity to impact load,they permit low rotating,speed,normally used in the workplace that thrust ball bearings can not applicable to. Thrust roller bearing can bear both axial load and radial load,can use in the heavy load occasion,permit the higher rotating speed,has better self-aligning performance.

A thrust bearing is a particular type of rotary bearing. Like other rotary bearings they permit rotation between parts, but they are designed to support a high axial load while doing this.
Thrust bearings come in several varieties. Ball thrust bearings, composed of ball bearings supported in a ring, can be used in low thrust applications where there is little radial load. Tapered roller bearings consist of small tapered rollers arranged so that their axes all converge at a point on the axis of the bearing. The length of the roller and the diameter of the wide and the narrow ends need to be carefully calculated to provide the correct taper so that each end of the roller rolls smoothly on the bearing face without skidding. These are the type most commonly used in automotive applications (to support the wheels of a motor car for example), where they are used in pairs to accommodate axial thrust in either direction, as well as radial loads. They can support rather larger thrust loads than the ball type due to the larger contact area, but are more expensive to manufacture.

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