Slewing Bearings

SLEWING BEARING APPLICATION

Waht is Slewing Bearings?

Slewing Bearings, also known as a turntable bearing or a slewing ring, is a large, high-precision bearing that enables the smooth rotation of two separate structures while supporting substantial axial, radial, and moment loads.  They are widely used in various industrial and engineering fields to support the rotational motion of rotating platforms, equipment or machinery. Slewing bearings are essential components in a variety of heavy-duty applications that require a rotating element, such as cranes, excavators, wind turbines, and radar antennae.

Features of Slewing Bearings：

• Large diameter: Slewing bearings have a larger diameter compared to other bearing types, often measuring multiple feet in size. This large diameter design allows for the accommodation of heavy loads and the facilitation of smooth rotational movement.

• Geometric structure: This type of bearing features a unique design comprising inner and outer rings and rolling elements (which can be balls or rollers) in a concentric arrangement. Its compact design enables it to transmit forces effectively while optimizing load-carrying capacity, stiffness, and overall performance.

• Toothed or smooth variations: Slewing bearings can come in both toothed (geared) and non-toothed (non-geared) designs, depending on the required application. Toothed slewing bearings often feature teeth integrated into the inner or outer ring to engage with a pinion or slew drive for precise movement and torque transmission.

• Variety of types: Slewing bearings are available in a wide selection of types, including single-row, double-row, and triple-row, offering different load-carrying capacities, stiffness, and mounting options to suit the specific needs of the application.

• Lubrication and sealing: Slewing bearings require proper lubrication and sealing to maintain smooth operation and prevent ingress of contaminants. They are often designed with integrated lubrication systems and robust sealing solutions for long-lasting performance in harsh environments.

Structure and composition of Slewing Bearings

Slewing Bearings are highly specialized components designed to facilitate the smooth rotation of heavy structures and accommodate substantial loads in a variety of applications. Their unique structure and composition, including the inner ring, outer ring, rolling elements, and seals or dust covers, make these bearings an essential part of numerous heavy-duty industries. Understanding their structure and components allows engineers and designers to select the most suitable slewing bearing for their specific application:

1. Inner Ring

The inner ring is the internal component of the bearing and is typically connected to the rotating platform or equipment's rotational axis. It features internal raceways or raceway rings, which house the rolling elements. The inner ring's design and shape may vary according to the specific applications and types of slewing bearings.

2. Outer Ring

The outer ring is the external component of the bearing, usually connected to a supporting structure or base. Similar to the inner ring, the outer ring also features outer raceways that match the inner ring raceways. The outer ring's primary function is to provide stability and support to the bearing, ensuring smooth rotation while transmitting loads effectively.

3. Rolling Elements

Rolling elements are the active components that facilitate the rolling motion of the bearing. They can be balls, rollers, or needle rollers, depending on the application requirements and bearing design. Positioned between the inner and outer ring raceways, the rolling elements provide contact surfaces and reduce friction while ensuring smooth axial and radial movement. The number and arrangement of rolling elements depend on the bearing's design, load-carrying capacity, and purpose.

4. Seals or Dust Covers

Some slewing bearings incorporate seals or dust covers to protect the internal rolling elements from contamination and the effects of external environments. These components are essential in maintaining optimal bearing performance and extending service life by preventing the ingress of dust, dirt, or moisture. They also help to retain lubrication and ensure that the bearing operates efficiently.

WHAT YOU CAN EXPECT FROM LTZC SLEWING RINGS:

Reliable Delivery: Personalize your slewing ring bearing order with a suite of inventory and fulfillment services, including just-in-time delivery, private labeling, blanket orders, and scheduled release plans.

Expert Technical Support: Our dedicated team of engineers offers comprehensive slewing ring application engineering solutions, such as 3D modeling, 2D drawings, finite element analysis (FEA), and technical manual guidance.

Superior Quality: LTZC's high-quality slewing ring bearings undergo stringent monitoring throughout the manufacturing process, ensuring they meet or surpass the quality standards of major brands in the market.

Competitive Pricing: By harnessing the strength of the global economy, LTZC is able to provide cost-effective solutions without compromising on quality, helping you stay within budget.

In short, LTZC Slewing Rings offer a combination of dependable delivery, expert technical support, high-quality bearings, and fair pricing to cater to industry demands while remaining cost-effective.