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Precision Rotary Table Bearings – The Key to CNC Machine Tool Performance
In the world of CNC machining, the rotary table is where precision happens. And at the heart of every high-performance rotary table lies a bearing that must simultaneously handle radial loads, axial thrust, and tilting moments—all while delivering smooth, backlash-free rotation with positioning accuracy measured in arc-seconds. That bearing is the rotary table bearing.
Introducing Ouna‘s ORT Series Rotary Table Bearings
Luoyang Ouna Bearing offers the comprehensive ORT series, designed specifically to meet the demanding requirements of high-precision rotary applications:
ORT Standard Rotary Table Bearings – For general high-precision applications requiring reliable performance under combined loads.
ORTS High-Speed Rotary Table Bearings – Featuring higher speed limits and lower, more uniform friction torque compared to the ORT standard series. External dimensions match the ORT series, but the internal structure is optimized for direct-drive motor applications.
ORTM Rotary Table Bearings with Integrated Measuring System – Based on the standard ORT series, an angle measurement system has been integrated, achieving measurement accuracy up to 1 arc second. This combined bearing delivers extremely high rotational accuracy while simultaneously withstanding axial loads, radial loads, and overturning moments—perfect for high-precision CNC rotary tables, dividing heads, and research measurement applications.
OKLDF Bidirectional Thrust Angular Contact Ball Bearings – For precise bidirectional axial load handling in specialized applications.
Why Precision Matters
In CNC machine tools, ISO P5-grade bearings are typically used in traditional lathes and milling machines. For machining centers, grinding machines, and high-speed precision machine tools, ISO P4-grade (or higher) bearings are required. At Ouna Bearing, our ORT series is available in P5, P4, and even P2 grades, ensuring your rotary table achieves the positioning accuracy and rigidity demanded by today‘s manufacturing standards.
Wide Application Range
Our rotary table bearings are widely used in precision rotary tables of machining centers, horizontal grinding machines, indexing heads, gear hobbing machines, gear milling machines, and workpiece shafts of precision devices.
Whether you need standard ORT bearings or custom-designed solutions, Ouna Bearing is ready to support your precision motion requirements.
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