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Slewing Bearing
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Product Description
Slewing Bearing
Characteristics :
Slewing bearing is a special bearing, which can bear combined axial, radial loads and tipping moment. Generally, slewing bearing is equipped with installation holes, lubricant holes and sealing devices in order to meet various requirements of main equipments in various operation conditions. Besides, slewing bearing features compact in structure, convenient to guide and rotate, easy for installation and maintenance.
Application:
It is widely used rotary devices for rigging , transportation equipment, excavating equipment, port equipment, medical equipment and military equipment.
Types :
Slewing bearing is classified according to its structure into :
1. four-point contact ball slewing bearing
This type is generally composing of two housing washers, which is compact in structure and light with steel balls contacting with spherical cage at four points. It can bear axial, radial loads and tipping moment. It can be used for construction equipment including rotary transporter, welding machine, small/medium sized crane and excavators. Four-point contact ball slewing bearing honors quite high dynamic load capacity.
2. double-row angular contact ball slewing bearing
This type is equipped with three housing washers. Steel ball and separator can be directly led to top/bottom cage. Two steel balls in different bores are equipped to fit for different load condition. This kind of configuration is quite easy to operate, which can bear heavy axial load and tipping moment. It is quite big in axial/radial size and compact in structure, which makes it particularly suitable for those equipments like bridge crane and truck-mounted loading/unloading equipment.
3. crossed cylindrical roller slewing bearing
This type is generally composed of two housing washers, which features compact in structure, light, precise in manufacturing and small clearance during assembly. Thus it requires high-level precision for installation. Roller is laid across. It is capable to bear axial load, tipping moment and heavy radial load, which is widely used in rigging, transportation, construction equipment and military products. Besides, it can bear heavy static load. Furthermore, preloaded mounting can be reached to have rigid support and precise rotary.
4. three-row cylindrical roller combined slewing bearing
This type is composed of three housing washers, raceway of which is separable in top, bottom, radial and axial direction. This makes to accurately define load of each row of roller. It can bear various loads at the same time rating first place in bearing capacity among four kinds of bearings. It has big axial/radial dimension as well as strong structure, which are particularly suitable for heavy equipment requiring big diameter, like wheel excavator, wheel crane, liquid steel turret and heavy-duty truck-mounted crane. This bearing can lift bearing capacity and lead it to its radial direction and various loads can be born by each raceway and roller set, then its diameter can be decreased largely under same force condition, therefore it makes its main body compact featuring high bearing capacity as slewing bearing .
Also, the slewing bearing can be classified according to gear into:
1. slewing bearing without gear
2. slewing bearing with external gear
3. slewing bearing with internal gear
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- KSR Roller Industry Co.,Ltd
- Contact nameAnna Guo Chat Now
- Phone86-135-21439031
- AddressBeijing, Hangzhou, Zhejiang
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