slewing drive made in china
Slewing drive
Slewing drive is a new type of slewing product, usually also called slewing bearing, which is usually composed of worm, slewing bearing, housing, motor and other components. Because the core component adopts slewing bearing, it can bear axial force, radial force and tipping moment at the same time.
Compared with traditional slewing products, NFB slewing drive is easy to install, easy to maintain, and saves installation space to a greater extent. This product can be widely used in construction machinery and new energy fields such as heavy-duty flatbed trucks, container cranes, truck-mounted cranes, aerial work vehicles, and solar power generation systems for sun patrols.
Mainly divided into the following common rotary drives
Single row four-point contact ball slewing bearing
The single-row four-point contact ball slewing bearing has a row of steel balls as rolling elements, with a single spacer block between the steel balls. The inner and outer rings are integral, and the steel balls are loaded through the filling holes. The steel ball is in contact with the raceway at four points, and can bear axial force, radial force and tipping moment at the same time.
Single row cross roller slewing bearing
The single-row cross-roller slewing bearing is similar to the four-point contact ball slewing bearing. There is only one row of rolling elements, and the rolling elements are short cylindrical rollers; the axes of adjacent rollers are arranged in a 90° cross; the inner and outer rings have Two raceways, the raceway section is straight. Half of the rollers bear downward axial force, and half bear upward axial force.
Double row reducing ball slewing bearing
The double-row ball reducing ball slewing bearing is composed of upper and lower double-row steel balls, inner and outer rings, spacer blocks and lubrication and sealing devices. In order to make the slewing bearing a complete assembly before it is installed on the main engine, it is necessary to provide several connecting bolts on the circumference to combine the upper and lower ferrules with each other. In order to adjust the clearance of the slewing bearing, the clearance is determined by grinding the end face during assembly.
Three-row roller slewing bearing
The three-row roller slewing bearing is a kind of slewing bearing with high bearing capacity, which is mainly used in the work occasions with large load. It consists of three ferrules, among which there is an adjusting shim between the upper and lower ferrules to adjust the horizontal distribution of the upper and lower rows of rollers for the axial clearance to withstand the axial force from two directions and tipping moment. The radial force is borne by the vertically arranged third row of rollers.
Lightweight flange slewing bearing
The light flange slewing bearing has the same structural form as the ordinary slewing bearing, the difference is that the cross-section of the inner and outer rings of this type of slewing bearing is an ‘L’ shape. Usually the assembly height of this type of slewing bearing is not very high, and the lightweight design makes the light flanged slewing bearing widely used in food machinery, filling machinery and environmental protection machinery.
In addition, our factory also transforms and upgrades such products according to the needs of different users, so that the inner and outer rings are divided into two sections, so users do not need to make extensive repairs to the main engine, they can realize the replacement of slewing bearing spare parts, This new type of slewing bearing is called NFB Huff slewing bearing.
Slewing drive
Slewing drive is a new type of slewing product, usually composed of worm, slewing bearing, housing, motor and other components. Because the core component adopts slewing bearing, it can bear axial force, radial force and tipping moment at the same time.
Compared with traditional slewing products, NFB slewing drive is easy to install, easy to maintain, and saves installation space to a greater extent. This product can be widely used in construction machinery and new energy fields such as heavy-duty flatbed trucks, container cranes, truck-mounted cranes, aerial work vehicles, and solar power generation systems for sun patrols.
Trailer turntable
The NFB trailer turntable is developed by our factory according to the current JT/T651-2006 standard and the advanced technology imported from abroad to produce similar products. In the traditional trailer turntable, the raceway part is not quenched, and the raceway is easily worn in actual use, resulting in a shortened service life.
In order to improve the wear resistance of the raceway part, our factory conducts raceway hardening on all products, and the hardness value can reach HRC40~62 or more (related to the material). This makes the products of our factory greatly improved in terms of bearing capacity, wear resistance and service life, which cannot be surpassed by other similar products.
