High-Precision Turntable Bearings for Demanding Applications
As a professional manufacturer specializing in rotary solutions, we understand that the turntable bearing is the critical heart of any precision rotary system. Our commitment is to deliver high-performance bearings that ensure stability, accuracy, and longevity for your most demanding machinery. From high-speed indexing tables to heavy-duty industrial applications, our engineering expertise is built into every ring.
Product Overview
Our turntable bearings, often referred to as rotary table bearings or slewing rings, are designed to accommodate complex load combinations. Unlike standard bearings, our units are engineered to simultaneously support high axial forces, radial loads, and significant tilting moments.
We utilize advanced internal geometries, such as multi-row roller systems and four-point contact ball designs, to maximize rigidity within a compact envelope. Whether you require a zero-backlash solution for a CNC dividing head or a robust support for a robotic arm, our bearings provide the precise motion control required for modern automation.
Performance and Quality
Quality is not just a metric; it is the foundation of our manufacturing process. We employ high-grade bearing steel and advanced heat treatment processes to ensure superior wear resistance and fatigue life.
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High Rigidity and Precision: Our bearings are manufactured to strict tolerance classes, including P4 and P2 grades. The internal clearance is pre-set to negative values (pre-loaded) to eliminate play, ensuring high axial and radial runout accuracy.
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Low Friction and Smooth Operation: Optimized raceway geometry and high-quality sealing reduce friction torque, making our bearings ideal for direct-drive torque motor applications.
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Integrated Solutions: Many of our models feature integral gear teeth (internal or external) machined directly onto the ring, simplifying your assembly process and reducing the overall footprint of your design.
Technical Specifications
Our product range covers a wide spectrum of sizes and configurations to suit various industrial needs. Below is a representative overview of our standard technical capabilities.
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Parameter
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Specification Range
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Bearing Types
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YRT Series, Crossed Roller, Four-Point Contact Ball
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Bore Diameter
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50 mm to 1200+ mm
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Precision Class
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ISO P5, P4, P2 (Customizable)
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Load Capacity
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High Axial, Radial, and Tilting Moment
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Material
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High-Carbon Chromium Bearing Steel (GCr15/100Cr6)
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Sealing
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Double-row Seals with Wiping Lips
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Lubrication
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Pre-lubricated with high-performance grease
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Certifications and Standards
To ensure global compatibility and reliability, our manufacturing processes adhere to rigorous international standards. We maintain full traceability from raw material selection to final inspection.
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ISO 9001: Certified Quality Management System ensuring consistent production quality.
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ISO Standards: Compliance with ISO 15312 for slewing bearings and relevant ISO dimensional standards.
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Industry Specifics: Our products meet the requirements for machine tool applications, including JIS and DIN standards where applicable.
Product Services
We go beyond simple manufacturing to provide comprehensive engineering support.
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OEM and ODM Solutions: We offer custom modifications, including special bore sizes, mounting hole patterns, and gear tooth modifications.
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Technical Support: Our engineering team assists with bearing selection, calculating equivalent loads, and optimizing housing fits.
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After-Sales Support: We provide detailed maintenance manuals and rapid response support for installation and troubleshooting.
Applications
Our turntable bearings are trusted in industries where precision and reliability are non-negotiable.
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Machine Tools: Rotary tables, indexing heads, and multi-spindle heads in CNC machining centers.
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Robotics: Rotary joints and axes in industrial robots and collaborative robots.
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Medical & Scientific: CT scanners, MRI machines, and precision measurement instruments.
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Industrial Automation: Positioning stages, welding manipulators, and packaging machinery.
Frequently Asked Questions
What is the difference between YRT and YRTS series bearings?
While they share the same external dimensions, the YRTS series features an optimized internal structure with a different cage design. This allows the YRTS to achieve significantly higher limiting speeds and lower, more uniform friction torque, making it ideal for direct drive motor applications.
Do you supply bearings with integrated gears?
Yes. We can machine external or internal gear teeth directly onto the bearing rings. This eliminates the need for a separate gear ring, resulting in a more compact and concentric assembly.
What is the lead time for standard models?
For standard models such as the YRT and crossed roller series, we typically maintain stock for common sizes. Delivery usually ranges from 3 to 7 days depending on the quantity and specific customization requirements.
Can these bearings be used in high-speed applications?
Yes. While standard YRT bearings are designed for high load and moderate speeds, our YRTS and high-speed crossed roller series are specifically engineered to handle higher RPMs while maintaining precision.
