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GWG produce large diameter spherical roller thrust bearings. In addition to standard items,GWG can make non-standard and custom thrust roller beairngs with shorter lead time than expected.For more information,please view our homepage www.gwgbearings.com
Series Number:
292xx
293xx
294xx
Bore diameter range:
150mm-900mm
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Excel series-Spherical Roller Thrust Bearings
The raceway of housing washer of this bearing type is spherical with the center of the radius located on the bearing axis. The design provides self-alignment capability to the bearing. The contact angle () is approximately 45° enabling the bearing to support axial load and a small to moderate amount of radial load.
This bearing type is often used for injection molding machines, crane hooks and other large machines.
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Spherical roller thrust bearings are separable single direction acting axial bearings
* Able to accommodate misalignment
* Suitable for high axial and some radial loads
* Relatively high speed ratings
* Standards: DIN 728
* Series: 29200, 29300, 29400
* Application examples: heavy vertical shafts, injection moulding machines, etc.
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RKB taper roller thrust bearings have separable parts: shaft washer, housing washer and rolling element assembly.
RKB program includes the single direction type, the double direction type and the screw-down special type.
RKB T.R.T bearings are manufactured in two constructive versions.
The rollers are radially guided by the rib of one washer (suffix ZB).
These bearings can also be produced in the version without the cage (suffix V).
The most common series are T, TK and 351 type.
Bearings made of case hardened carburizing alloy steels can be also produced.
RKB bearings are used in the rolling mill applications associated.
RKB produces double direction taper roller thrust bearings in two constructive versions, either with central plane shaft washer and taper raceways in both housing washers or with both plane housing washers and taper raceways in the central shaft washer.
A special sleeve is arranged, so no special adjustment of the bearing is required.
As the double direction taper roller bearings are usually mounted with loose fit on the roll neck, the shaft washer is normally provided with one or two locating slots that, engaged with key-way or similar devices, prevent the shaft washer from rotating on the seating.
The most common series are 350, 351, 353 and TTK type.
RKB screw-down bearings are a special design of the single direction taper roller thrust bearings used for rolling mill arrangements.
They are generally produced with case hardened carburizing alloy steels and with full complement of long rollers of large diameter.
The dimensions of taper roller thrust bearings are not standardized.
The main boundary dimensions are produced according to ISO 199/1979
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The cylindrical roller thrust bearing is applied to take axaial loads. It has a high load capacity. The housing washer and the shaft washer of it are made of bearing steel. The cage material can be copper base alloy,aluminum alloy,steel.the cylindrical roller thrust bearings made in NNN use copper base alloy as the basic cage material.Aluminum alloy & carbon steel and plastic are also available on the request of the clients.In that case,some special suffix should be appended to the bearing codes to show the difference.
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Axial spherical roller bearings are single row, self-aligning roller bearings. They comprise solid shaft and housing washers and asymmetrical barrel rollers with cages. The cage holds the roller and cage assembly together with the shaft locating washer. The bearings can be dismantled. The parts of the bearings can be fitted separately.
Axial spherical roller bearings can support very high axial loads and permit relatively high speeds. Since the raceways are at an angle to the bearing axis, the bearings can also support radial loads.
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Tapered roller thrust bearings allow for a very compact bearing arrangement which can carry very heavy axial loads, and provide high shock-load resistance in a variety of applications.
We produce single direction tapered roller thrust bearings and double direction tapered roller thrust bearings. The screw-down bearings constitute a special design of single direction tapered roller thrust bearing.
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Axial needle roller bearings
Axial needle roller bearings are units comprising axial needle roller and cage assemblies and axial bearing washers with a centring spigot. They can be combined with drawn cup needle roller bearings and needle roller bearings. The axial running surface for the needle roller and cage assembly must be hardened and ground.
Axial needle roller and cage assemblies
Axial needle roller and cage assemblies comprise plastic or metal axial cages with integrated needle rollers and have a very small axial section height. They can support high axial forces in one direction. Radial loads must be supported by separate means. Axial needle roller and cage assemblies require hardened and ground axial running surfaces for use as raceways.
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NU type of cylindrical roller bearings, capable of axial movement, can adapt to the change of relative position between the shaft and shell caused by thermal expansion or installation error, suitable for being used as the bearing at the free end. NJ and NF type of bearings have some loading capacity in one-way axial direction. NN and NNU type of bearings, with high rigidity against radial load, are mainly used in the principal axis in machine tools. This type of bearings are mainly used in various industrial machines such as the motor, generator, gas engine, gas turbine, principal axis in machine tools, reduction gear, handling machine, etc.
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Spherical roller bearing, with relatively large loading capacity and self-aligning function, is the kind of bearing that is used the most extensively in the world.
ZQZ produces spherical roller bearings including 22200, 22300, 23000, 23100, 23200, 23300, 23900, 24000, 24100, etc.
Single-row spherical roller bearings such as SS22222TT and SS22224T are also produced.
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Cylindrical roller thrust bearing, with cylindrical rollers crowning-processed and even pressure between rollers and ball race, can bear one-way axial load, mainly used in the crane and oil drillers etc.
ZQZ cylindrical roller thrust bearings have the following types: 81100, 81200, etc.
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Spherical roller thrust bearing, with self-aligning function, large axial loading capacity and some radial loading capacity, are mainly used in the hydraulic motor, marine screw shaft, head mast, press, etc.
Specifications of ZQZ bearings include 29200, 29300 and 29400 series.
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