S V Hi-Tech Bearing (India) Private Limited

Slewing bearings comprise an inner ring and an outer ring, one of which usually incorporates a gear. Together with attachment holes in both rings, they enable an optimized power transmission with a simple and quick connection between adjacent machine components. The bearing raceways, in conjunction with the rolling elements and cages or spacers, are designed to accommodate loads acting singly or in combination, and in any direction.

SKF manufactures standard and customized slewing bearings in various designs, with outside diameters from 0,1 to 18 m to meet the demands of particular applications.

• Construction - supports heavy loads for slow applications and large equipment (as in construction cranes)
• Industrial - Mining, Steel, Agriculture, Oil & Gas.
• Robotics equipment.
• Machine tools.
• Medical applications.
• Aerospace & Defense.

• Optimum quality
• Guards against corrosion
• High Precision

• Optimum quality
• Guards against corrosion
• High Precision

A cross cylindrical roller slewing bearing is a type of bearing that can carry axial load, tilting moment, and radial load simultaneously. It is composed of an inner ring, outer ring, a single row of rollers, a cage (spacer), and a sealing device. The design and application of the cross cylindrical roller slewing bearing are similar to those of the four-point contact ball slewing bearing, except that the rolling elements are replaced from balls to rollers, and the contact method between the rolling elements and the rings changes from point contact to line contact. This change increases the load-carrying capacity but also increases wear and friction moment loads.

A vertical mounted slewing drive is a type of gearbox designed to handle vertical loads and movements, providing precise rotational movement in a vertical orientation. These drives are crucial in applications such as solar tracking systems, where they facilitate the movement of solar panels to track the sun throughout the day, maximizing energy output. They are also used in crane systems for vertical lifting and lowering operations.

An eight-point contact ball slewing bearing is designed to handle complex combinations of radial, axial, and moment loads while ensuring smooth rotation and high precision in demanding applications. These bearings feature eight contact points between the balls and raceways, providing enhanced stability and load distribution. They are suitable for applications requiring high load capacity and long life, such as wind turbine equipment and concrete transportation pump trucks.

Three-row roller slewing ring bearings are designed to handle high loads and provide superior rigidity. These bearings integrate an inner and outer ring with three rows of rollers, typically two axial and one radial, to achieve high load capacity. They are commonly used in heavy-duty machinery and equipment where precise and reliable rotational motion is required.

Single-row ball slewing ring bearings are commonly used in applications with medium loads and are known for their compact structure and lightweight design. These bearings can handle axial force, radial force, and tilting moment simultaneously due to the four-point contact between the steel ball and the arc raceway.

There are three main types of single-row ball slewing ring bearings: without gear, with internal gear, and with external gear. They are widely used in various industries including construction machinery, cranes, excavators, and water treatment facilities.

A four-point contact ball slewing bearing is a specialized mechanical component designed to support high axial, radial, and moment loads in rotating applications. It consists of an inner ring, outer ring, single-row steel balls, cage (or spacer), and sealing device. The inner ring and outer ring can have integral or split structures. The split structure allows for easier adjustment and is connected with bolts before the product leaves the factory.

A double row ball slewing ring bearing is a type of rotational rolling-element bearing designed to support heavy but slow-turning or slow-oscillating loads, often used in applications like wind turbine equipment and concrete transportation pump trucks. It has a compact structure, which can effectively save the center diameter of the inner and outer ring mounting holes while improving the load-carrying capacity. These bearings are also used in crushing equipment, where they can operate at speeds up to 60 rpm and are known for their high speed, large load capacity, good anti-overturning ability, and stable operation.

Excavator bearings are specialized components designed to endure the rigorous demands of excavation equipment. They facilitate the smooth rotation of various moving parts such as the boom, arm, and bucket, enabling the excavator to perform tasks with precision and efficiency.

Excavator bearings can be categorized into different types based on their function and design. Slewing bearings, also known as swing circle bearings, are large-size bearings that support the rotational movement of the excavator’s upper structure relative to the undercarriage. These bearings enable the excavator to pivot smoothly, facilitating versatile movement and precise positioning.

A slewing drive is a gearbox designed to handle radial or axial loads using high rotational torque. It can safely hold these loads without the need for brakes and can transmit torque for rotating in a single axis or multiple axes together. The slewing drive is a modernized version of the worm drive mechanism