The ball-roller combined slewing bearing is a specially designed combined structure bearing that integrates both steel balls and rollers as rolling elements,also roller and ball bearings .This innovative design combines the smooth and flexible rotation of a ball bearing with the high load-carrying capacity of a roller bearing, making it ideal for heavy-duty and precision applications.
1. Dual Load Capacity: The combination of balls and rollers allows the bearing to simultaneously withstand high axial loads, radial loads, and overturning moments.
2. Optimized Load Distribution: Balls provide smooth rotation and lower friction, while rollers offer higher load capacity. This hybrid design ensures a balanced load distribution.
3. Smooth and Precise Rotation: Ball raceways ensure stable, low-resistance motion, improving rotational accuracy and maintaining stable performance even at low speeds.
4 Compact Structure and Superior Performance: Compared to common slewing bearings, ball-roller combination bearings offer higher load capacity without increasing size, enabling more compact equipment layouts.
5. Long Service Life: With optimized contact geometry and high-strength materials, this bearing offers superior wear resistance and a longer service life, making it particularly suitable for heavy-duty or continuous rotation applications.
6. Suitable for Harsh Environments: Ball-roller combination bearings are suitable for applications in engineering machinery, port equipment, wind turbines, and marine applications.
Precision Machining: The outer ring, inner ring, and raceway are precision machined using a CNC five-axis machining center, with dimensional tolerances controlled within ±0.02mm, ensuring smooth rotation and positioning accuracy.
Heat Treatment and Hardening: Key bearing components undergo quenching and surface tempering treatment, achieving a hardness of HRC58–62, providing excellent wear resistance and long-term stability.
Compact Design: Achieving high rigidity and high load-bearing capacity within a limited space, suitable for large engineering machinery, offshore platforms, port equipment, and wind turbine rotating structures.
Bearing Lubrication and Sealing: LTZC provides high wear-resistant and corrosion-resistant materials such as FKM, NBR, and PU, along with a special sealing design to extend the bearing's service life.
LTZC possesses a complete independent production system and large-scale precision machining capabilities. LTZC can produce large slewing bearings with diameters ranging from 300mm to 15000mm and holds international certifications including ISO9001, 14001, 45001, CCS, BV, and ABS. LTZC bearings are suitable for marine engineering equipment, wind power, port machinery, construction machinery, and ultra-heavy-duty rotating structures. The products feature high load-bearing capacity, high stability, and long service life, meeting the continuous operation requirements under harsh working conditions.
Precision Grade
Bore Tolerance (φ50 mm)
Outer Diameter Tolerance (φ90 mm)
Radial Runout
Axial Runout
Raceway Roundness Error
Raceway Surface Roughness Ra
P0
0 ~ -10 μm
0 ~ -13 μm
≤ 15 μm
≤ 15 μm
±0.015 mm
≤ 1.6 μm
P6
0 ~ -8 μm
0 ~ -8 μm
≤ 10 μm
≤ 10 μm
±0.010 mm
≤ 1.25 μm
P5
0 ~ -6 μm
0 ~ -5 μm
≤ 6 μm
≤ 8 μm
±0.008 mm
≤ 0.8 μm
P4
0 ~ -5 μm
0 ~ -3 μm
≤ 3 μm
≤ 4 μm
±0.005 mm
≤ 0.4 μm
P2
0 ~ -3 μm
0 ~ -2 μm
≤ 2 μm
≤ 3 μm
±0.003 mm
≤ 0.2 μm
Ball-Roller Combined Slewing Bearing With External Gear
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 bearings have over 20 years of experience in slewing bearing R&D. LTZC bearings are suitable for heavy machinery such as excavators, cranes, and tunnel boring machines.
LTZC is a professional manufacturer of wind turbine slewing bearings, specializing in yaw and pitch systems. LTZC provides customized bearing solutions for onshore and offshore renewable energy applications, ensuring stable performance and higher turbine efficiency.
LTZC specializes in manufacturing various bearings types , including ball bearings, roller bearings, and heavy-duty bearings, suitable for slew ring excavators and cranes.
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 bearing solutions for the aerospace and communications sectors.
LTZC offers high-performance slewing bearings, large heavy-duty bearings, wheel bearings, and slew ring solutions with competitive bearing prices and reliable manufacturing quality.
Feel free to get a quote on the latest price of slewing bearings for any largeapplications,
please include your application, needs, requirements and otherdetails.
WhatsApp
Eric.wang@ltzzc.com
0086-379-69950051
