Double-row tapered roller bearings.
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Because of more rows of rollers, the radial load capacity of double-row tapered roller bearings enhanced, at the same time, they are capable of carrying heavier axial loads in both directions. They are primarily used to carry combination of radial and axial loads, and limit axial displacement of the shaft (or housing) in both directions, so they can be used to locate axially in both directions.
The performance of the type TDO double-row tapered roller bearings is the same as the two single-row tapered roller bearings with back-back arrangement.
The double-row tapered roller bearings are easy to mount and dismount, and have high stiffness; therefore, they are usually used in the applications with changing loads, such as gear-boxes, etc. There is a spacer between the two inner rings, the radial and axial clearance can be adjusted by changing the width of spacers.
The type TDI double-row tapered roller bearings have a outer ring spacer, the clearance is adjustable, these bearings mainly used in roll neck under moderate loads.
Sized from 0.6250" (16 mm) inside diameter to 10.1250" (257 mm) outside diameter. Metric ISO sizes from 15 mm inside diameter to 160 mm outside diameter.
Both NTN and NTN-Bower brand names are available.
Taper roller bearings are generally used to support combined load mainly consisting of radial load. her cups are separable for easy assemble for easy assembling. During mounting and using, radial clearance and axial clearance can be adjusted and preloaded mounting can be made.
Tapered roller bearings are designed to take combined heavy radial loads and heavy thrust loads in one direction while operating at moderate speeds. Metric tapers feature a simplified part number for a complete bearing. Inch tapers require a part number for the cup and one for the cone. The difference between the metric and inch tapers is only in the dimensions of measure for the bearings
Tapered roller bearings consist of four basic components including the cone (inner ring), the cup (outer ring), tapered rollers, and a cage (roller retainer). Tapered roller bearings are designed such that their conical rollers and raceways are arranged so that all elements of the roller and raceway cones meet at a common apex on the bearing axis. The rollers are guided by the contact between the large end of the roller and the rib on the inner ring (cone).
This construction provides a high capacity for radial loads, axial loads, and combined loads. The larger the contact angle, the greater the loading capacity becomes. When a pure radial load is placed on the bearing, an induced load in the axial direction is also generated. So, these bearings are generally used in pairs opposing each other. Tapered roller bearings have the inherent advantage of being adjustable and, they can be set to approach optimum performance in almost any application. These are mainly used in Agriculture, Construction machinery, Automobiles, Gear Boxes & Rolling Mills. We offers a wide range of roller bearings in a variety of configurations like single row, double row & four rows.
We are a bearing manufacture of enjoying a good reputation in china. Our bearings have been accepted by domestic and overseas clients for many years, because of the superior quality of our bearings.
Tapered roller bearings are separable and have the following components: outer ring, inner ring, and roller assembly (containing the rollers and a cage). The non-separable inner ring and roller assembly is called the "cone", and the outer ring is called the "cup". Internal clearance is established during mounting by the axial position of the cone relative to the cup
Tapered roller bearing major in application to support combined load (radial load and axial load) which inclines to radial load .It generally not suit to sustain axial load solely. Under the radial loading forces, it will produce additional axial forces. The axial load ability of the bearing is determined by the contact angle .The bigger the contact angle, the heavier the axial load capacity. Tapered roller bearing is combined by separate bearing and the inner ring with rollers and separators. And the outer ring can be installed separately. During the process of mounting and using we can regulate its radial clearance, axial clearance and also can install with pre-interference .We company can produce all types of single, double and four row tapered roller bearing .It has the typical features of easy mounting and dismounting and regulating clearance .It can be widely used in all the various trades and occupations.
In the design of tapered roller bearing, the vertexes conical surfaces of the inner ring raceway surface, outer ring raceway surface and the rollers rolling face intersect at one point on the central line of the bearing. Our serial products are available in both metric and imperial, which are applicable for withstanding heavy loads and impact loads.
