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Rotary Table Bearings – The “Joint” That Defines Your CNC Machine’s 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.
Ouna Bearing’s ORT Series
Luoyang Ouna Bearing has established itself as a competitive player in this space, offering the comprehensive ORT series rotary table bearings, including:
ORT standard rotary table bearings – For general high-precision applications
ORTS high-speed rotary table bearings – Designed for high rotational speed requirements
OKLDF bidirectional thrust angular contact ball bearings – For precise bidirectional axial load handling
ORTM rotary table bearings with integrated measuring system – For real-time positioning feedback
ORT rotary table bearings are specially designed to simultaneously bear axial loads, radial loads, and overturning moments, integrating support, rotation, transmission, and fixation functions into one compact unit. They feature a thrust/radial bearing ring, a thrust washer, two needle roller cage assemblies, and a set of radial cylindrical rollers, with evenly distributed screw holes on the housing and shaft washers for easy installation.
Market Growth and Import Substitution
The global rotary table bearing market is projected to reach approximately $1.5 billion by 2033, driven primarily by increasing automation in manufacturing processes. Meanwhile, China’s bearing industry overall is expected to reach approximately 315 billion RMB in 2026, with the high-precision bearing segment growing at over 12% annually.
More importantly, the import substitution trend is accelerating. Foreign brand share in China’s high-end bearing market has fallen below 30%, down from 79% in 2018, as domestic manufacturers prove their ability to compete on quality. Ouna Bearing stands at the forefront of this shift, delivering world-class precision at more accessible price points.
Whether you need standard ORT bearings or custom-designed solutions, Ouna Bearing is ready to support your precision motion requirements.
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