Double-row ball slewing bearing is a high-load slewing bearing product. It adopts a double-row steel ball rolling element design, including rolling elements of the same diameter and rolling elements of different diameters. It can simultaneously withstand large axial forces, radial forces and higher overturning moments. It has a compact structure and stable rotation.
Double-row ball slewing bearings are large slewing bearings with two rows of steel balls as rolling elements. Their core advantage is that they can simultaneously withstand large axial forces, radial forces, and overturning moments, making them a key component of heavy-duty rotating equipment.
Design Structure of Double-Row Ball Slewing Bearing
Inner and Outer Rings: With raceways, often integrating mounting holes and gears (internal/external teeth) for fixing and driving rotation.
Two Rows of Steel Balls: Mostly four-point contact, with each row of steel balls forming two-point contact with the raceway, optimizing the distribution of composite loads.
Cage/Isolator: Placed between the two rolling elements, guiding the steel balls to roll evenly and preventing friction and collision.
Sealing Device: Dustproof, waterproof, and prevents grease leakage, suitable for harsh working conditions.
LTZC Double-row ball slewing bearing features
Superior Composite Load Capacity: Two rows of steel balls roll in tandem, simultaneously bearing axial and radial loads and overturning moments, resulting in significantly higher load-bearing capacity than single-row ball types of the same size.
Compact Structure: Compared to three-row roller types, it is lower in height and lighter in weight, saving installation space.
Good Rigidity and Stability: The double-row design enhances overall rigidity, resulting in minimal deformation and smooth rotation under heavy loads.
Suitable for Medium and Low Speeds: Suitable for heavy-duty, medium-to-low-speed rotation scenarios such as excavators and cranes.
Easy Installation and Maintenance: Pre-assembled for simple on-site installation; sealing and lubrication design reduces maintenance costs.
Large Diameter and Custom Bearings：With over 20 years of experience in bearing research and development, LTZC specializes in customizing slewing bearings for heavy machinery, accumulating extensive professional manufacturing expertise.LTZC bearings size from 300mm to 15000mm,meeting the special operating requirements of cranes, stacker-reclaimers, port machinery, tower cranes, wind power equipment, and other applications.
Professional Technical Support：LTZC provides global customers with: operating condition calculations, service life assessments and maintenance recommendations, installation and lubrication solutions, and bearing installation and maintenance guidance, ensuring reliability throughout the entire process from design to use.
LTZC precision slewing bearing
LTZC bearings are machined using ultra-precision grinding equipment with a 'three-grind, three-inspection' process, and are equipped with a precision roundness tester to accurately detect parameters such as inner/outer diameter tolerance, roundness, and runout, with a testing accuracy of 0.01μm. Each batch of products undergoes 100% inspection to meet the following accuracy levels, ensuring high-precision bearings for our customers.
With over 20 years of experience in bearing R&D, our global service network covers countries such as India and Russia, ensuring fast and efficient technical support for all bearing issues and ensuring the smooth operation of your equipment.
Advanced CNC production equipment and manufacturing processes guarantee bearing precision and durability. LTZC bearings also carry third-party testing reports to ensure they meet international standards.
LTZC products include slewing bearings, slewing drives, precision thin-wall bearings, and custom bearings. They are widely used in cranes, heavy machinery, and port machinery, maintaining stable performance under harsh operating conditions.
Our experienced technical team provides customized bearing solutions for complex applications. Services include load analysis and bearing selection, service life calculations, 3D design, and engineering drawings.
LTZC slewing bearing manufacturer
LTZC Bearings is a trusted bearing manufacturer specializing in slewing bearings, slewing drives, and precision bearings. With advanced CNC machining equipment, comprehensive heat treatment, and strict quality control, our products meet international standards and are ISO certified.
We export high-quality industrial bearings to Germany, India, Russia, and Canada, earning over 10,000 satisfied customer feedbacks. With strong OEM and ODM capabilities, LTZC provides fast delivery and custom bearing solutions for heavy machinery, construction, and automation industries.
LTZC is a professional slewing bearing manufacturer，providing a full range of custom bearing services, including slewing rings, non-standard bearings, large bearings, thin-section bearings, crossed roller bearings, and four-point contact ball bearings. Whether the requirements are special sizes, materials, or complex operating conditions, we can provide customers with the optimal solution through professional R&D and precision manufacturing.
LTZC provides precision slewing bearings, precision robot bearing, customized bearing solutions, thin section bearing widely used in rotating equipment in the field of industrial automation.
LTZC specializes in manufacturing bearings of various sizes, LTZC specializes in developing marine-grade and defense-grade bearings designed to deliver exceptional strength, corrosion resistance, and long-term operational stability.
LTZC bearings are widely used in the aerospace field, LTZC is committed to providing high-precision, high-performance slewing bearing solutions for the aerospace and communications sectors.
LTZC offers high-performance slewing bearings, large diameter slewing bearings, wheel bearings, and slew ring solutions with competitive bearing prices and reliable manufacturing quality.
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