Slewing Bearing Dealers

slewing bearings are machine elements which absorb all axial and radial forces and the resulting tilting moments in a single self-retaining and ready-to-install unit. Their low profile and an excellent weightperformance ratio, open center, and the possibility of an integrated gearing make Rotek slewing bearings ideal structural components.

We are proud to be one of India’s few slew ring bearing manufacturers who have developed these products indigenously. We can guarantee that our slew ring bearings match global standards and are competitively priced.

NIBL is the exclusive distributor for Rollix slewing bearings in India. Rollix, part of the Defontaine group, is one of the oldest manufacturers of slewing rings in Europe with an experience that spans half a century. Rollix slewing high precision bearings unique design have a special coating which offers long life with very little maintenance. These bearings have a compact design and are able to accomodate both; radial and axial loads. Rollix slewing rings can also accomodate tilting movements.

Design of the support structure the slewing ring has a limited axial stiffness: the diameter is large compared to the cross section. It must be mounted on a machined supporting base, ensuring sufficient stiffness with regard to the loads to be transferred. This makes it possible to ensure an even distribution of stresses and to avoid any deformation during operation, which would be harmful to the good working of the bearing. Therefore, it is necessary to use supporting bases with a minimum thickness not less than the values indicated in the table above. The width of the supporting surfaces is to be at the least equal to that of the ring.

Design of the support structure the slewing ring has a limited axial stiffness: the diameter is large compared to the cross section. It must be mounted on a machined supporting base, ensuring sufficient stiffness with regard to the loads to be transferred. This makes it possible to ensure an even distribution of stresses and to avoid any deformation during operation, which would be harmful to the good working of the bearing. Therefore, it is necessary to use supporting bases with a minimum thickness not less than the values indicated in the table above. The width of the supporting surfaces is to be at the least equal to that of the ring.

We are specialized in the manufacturing of External Geared Slewing Bearing. Our External Geared Slewing Bearings are manufactured with premium grade metal and are an outcome of refined engineering. These External Geared Slewing Bearings are optimized to bear high axial force, tilting moment and large radial force. We are offering premium quality External Geared Slewing Bearing at very reasonable price. Technical Specifications

Slewing Ring bearing has been developed as a new machine part in recent 30 years. It is first used in excavator and crane, and then applied to other machines. Slewing bearing is almost the same as oversize ball and roller bearing. Figure 1-1 shows double-row ball Slewing bearing's structure. Figure 1-2 shows how Slewing bearing is used in Caterpillar Crane. It connects the upper and lower parts of the machine, bearing the weight and working load of the upper part, and makes the upper slew relatively. Slewing bearing is widely used in different industries. It is suitable for hoisting machine (truck crane, tower crane, etc.), construction machinery (excavator, loading and unloading machine), transporting machine, material processing machine, Metallurgy Machinery, food processing machine, military product (tank, s anti-aircraft gun, radar, missile launcher, etc.), medical instrument research equipment, etc. Slewing bearing, like common bearing, has roller and rolling ring with raceway. But, compared with common roller bearing, it has many special features. They can be summarized in the following points: The size of Double-Row Ball Slewing Bearing is great; its diameter is generally between 0.4m~10m, some even is up to 40m. Slewing bearing usually bears load from different parts. It doesn't only bear the axial force, radial force, but also tipping moment simultaneously. Therefore, a set of Slewing bearing often completes the functions of many sets of common roller bearing. The speed of Slewing bearing is fairly low, usually below 10 rmin. Moreover, on most occasions, Slewing bearing doesn’t slew continually, but only slew back and force in a certain angle like the so called Swing Bearing. Slewing bearing differs greatly from roller bearing in process techniques, material and heat treatment. Generally, Slewing bearing has gear ring as driving device and Seal Device to pretend dust. Unlike the common bearing fixed on the central pivot in the bearing box, Slewing bearing has big size and is attached to upper and lower plates by bolts. Rohit Industries, a department of the Defontaine group, have designed and manufactured special bearings and slewing rings from 100 to 4500 mms diameter, with and without gear, since 1985. We have firmly positioned ourselves as one of the leading Slewing Bearing Exporters in India. 60% of our production is exported to more than 40 countries. Our engineering and design department will propose you innovating solutions, using the most modern software, as well as calculation by finite elements. The bearings and slewing rings we manufacture range in size from 10 inches to 240 inches outside diameter. They are used in construction machinery, logging machines, aerial baskets, medical equipment, military vehicles, radar antennas, and a variety of industrial equipment. In terms of both quality and delivery. Our service doesn't stop once the product ships. Being a Rohit Industries’ customer means that you'll enjoy the best service in the industry.

To accommodate radial, axial and moment loads in single or combination direction Slewing Bearings are which are in large size. This bearing can perform oscillating and rotational movements. It consist of inner ring and outer ring and rolling elements like cylindrical or ball rollers. The raceway in the rings are precision finish and hardened. This Slewing Bearings are re lubricated by grease fittings to minimize operating cost and maintenance cost. Slewing Bearing is also available with Bearing dealers in Qatar.

slewing bearings are machine elements which absorb all axial and radial forces and the resulting tilting moments in a single self-retaining and ready-to-install unit. Their low profile and an excellent weightperformance ratio, open center, and the possibility of an integrated gearing make Rotek slewing bearings ideal structural components. Slewing ring bearing solutions are ideal for optimal economy in a given envelope dimension; for heavy-duty applications requiring significant load-carrying capacity; for designs where precise positioning is critical; and for the unique requirements of wind turbines. Our slewing ring bearings offer total solutions for the most demanding specifications in a variety of applications, including: Aerospace and Engineering Heavy equipment Industrial machinery Medical systems Renewable energy Semiconductor manufacturing equipment

We are one of the leading suppliers of Slewing Ring Bearings that is available in ball and roller types. These bearings are extensively used where a rotary motion is required without transmission of high radial load, rotation at slow speed and little rough application. The Ball Type has double row ball bearing slewing rings with double axis system and single row ball bearing slewing ring with four-point contact. In case of the Roller Bearing design, three roller bearing slewing rings with radial & axial roller type are applied. We can provide our clients with wide range, having up to 3500 mms external diameter with either internal teeth or external teeth cut or without any teeth. For pre-lubricated condition with grease nipples, high quality dust seals and standardized clamping bolt pattern the complete bearing is provided. These bearings give a normal life of 30000 revolutions on load. The selection of type of rolling element either roller or ball and the number of rows, entirely depends on application and method of use, such as slewing over angle, operating cycle and oscillatory motion. Our Slewing Bearing Rings find wide application in wind turbine, turntable, mobile carne, excavator, port carne, turn dish rotation in steel industry and work platform.Features:- High operational efficiency- Compact design- Long service life- Low maintenance

Slewing Bearings are Large-size rolling bearings which can accommodate axial, radial and moment loads either single or in combination direction. They can perform both movements oscillating as well as rotational. Basically a slewing bearing consists of inner ring, outer ring and rolling elements – balls or cylindrical rollers. The rolling elements are separated by polyamide spacers. The rings, which usually incorporates a gear are provided with holes to accommodate attachment bolts. The holes may be threaded. Generally, only the raceways in the rings are hardened and precision finish. Integral seals keeps the lubricant in, and contaminants out of the bearing. Slewing bearings are re-lubricated through grease fittings to reduce maintenance and operating costs.

Self-aligning ball bearings have two rows of balls, a common sphered raceway in the outer ring and two deep uninterrupted raceway grooves in the inner ring. They are available open or sealed. The bearings are insensitive to angular misalignment of the shaft relative to the housing (fig. 1), which can be caused, for example, by shaft deflection.

We bring to you Swing Circle Bearings of exceptionally high Quality and Precision. Thanks to years of know-how and broad expertise in the field of metallurgical processes and metal materials, excellent Engineering and R&D using CAD systems, numerous design innovations, quality controls at every stage which covers the entire complexity of the production process - the result is extended service life and increased load capacity of every Bearing we sell. We are proud to bring to you Swing Bearings with one of industry’s longest service life. The same are trusted by many Original Equipment Manufacturers (OEMs) as well.

we offer slewing bearing is widely used in different industries. It is suitable for hoisting machine (truck crane, tower crane, etc.), construction machinery (excavator, loading and unloading machine), transporting machine, material processing machine, metallurgy machinery, food processing machine, military product (tanks, anti-aircraft gun, radar, missile launcher, etc.).

Slewing bearings into design & manufacturing of special type of Slewing Ring Bearings.Technology with super precision rollers guarantees increased load capacity & low coefficient of friction.