Our materials, processes and technology enable us to manufacture high quality bearings.
Standard series, high-speed series and double-row thrust angular contact series slewing table bearings feature high rotational accuracy. They can bear radial loads, bidirectional axial loads and overturning moments, ideal for rotary tables, faceplates, milling heads and reversible fixtures requiring high precision and combined loads. Fitting holes on the rings enable easy installation. Preload on axial and radial directions after mounting ensures high precision and rigidity. Complete size ranges suit tables of various dimensions. Different series share identical overall and mounting dimensions for flexible selection per working conditions. The operating temperature ranges from -30℃ to 120℃.
Composed of inner ring, outer ring and alternately arranged rollers, crossed roller bearings are widely used in mechanical equipment. The unique structure maintains excellent rotational accuracy and stability under heavy loads and high speeds.
Capable of bearing radial forces, bidirectional axial forces, overturning moments and combined loads.
Applicable for scenarios demanding high rigidity.
Deliver high-precision rotation and allow preloading.
Crossed cylindrical roller bearings are precision bearings with cylindrical rollers arranged perpendicularly at 90°. Equipped with cages or spacers to avoid roller friction, they withstand combined radial, axial and moment loads. Boasting high rotational accuracy, great rigidity and low friction, they are made of carburized steel or electroslag remelting bearing steel. Widely used for robot joints, machine tool rotary tables, medical and aerospace equipment.
Main models include outer ring split (XRB), inner ring split (XRE), integral type with mounting holes (XRU) and thin-walled CRB series, covering bore diameters from 20mm to 1250mm. The split ring design allows clearance adjustment and retains high precision under preload. RB, RE and RU types meet diverse mounting requirements.
As core high-precision components installed inside joint reducers of industrial robots, these bearings guarantee stable operation, precise positioning and load-bearing capacity. They are mainly divided into two categories by reducer type:
Bearings for Harmonic Reducers
Mainly applied to wrists and small arm joints of light-duty miniature robots. Dominated by flexible thin-wall bearings and crossed roller bearings, they feature compact structure for narrow installation spaces, with smooth rotation and high positioning accuracy.
Bearings for RV Reducers
Widely adopted for base, waist and large arm joints of heavy-duty industrial robots. This type of heavy-load precision bearing consists of eccentric shaft bearings, cycloid needle roller bearings and precision angular contact bearings. It features high rigidity, large load capacity, impact resistance, tolerance to frequent reversing and small clearance. With strong load capacity and long service life, it is a key transmission part for heavy industrial robots.
Turntable bearings are large and extra-large rolling bearings with special structures, integrating supporting, rotating, transmission and fixing functions. They bear combined axial loads, radial loads and overturning moments with high load capacity.
Modular structure simplifies host design and optimizes power transmission.Easy to connect and assemble with adjacent components.Excellent load capacity for various combined loads.
Composed of regularly arranged cylindrical rollers, cages, shaft washers and housing washers, tandem thrust cylindrical roller bearings feature compact radial dimensions, large axial load capacity, uniform load distribution on each roller row, good wear resistance, low vibration and noise, and long service life.
Three main structural types:
Basic type: Separable structure assembled with elastic spacers, allowing disassembly of all parts.
Sleeve type: Equipped with an outer sleeve for integral mounting and dismounting.
Shaft type: Fitted on a shaft and fixed by elastic circlips; non-separable for overall installation and removal.
With non-sealed design, open equal-section thin-wall bearings have ultra-thin walls and uniform cross-section. They deliver high precision, light weight and low running resistance, saving installation space and adapting to hollow shaft structures. Designed for clean working environments, they are widely used for robot joints, harmonic reducers, precision instruments and high-end intelligent manufacturing equipment.
These bearings withstand radial loads, axial loads and moments for enhanced rigidity. Based on open-type products, they are fitted with seals on both sides. The sealing structure improves lubrication, reduces greasing frequency and provides dustproof performance.
Luoyang Yadian Machinery Equipment Co., Ltd. is a comprehensive enterprise specializing in the R&D, production, and sales of precision bearings. With deep expertise in the precision bearing manufacturing sector, its products are widely applied in high-end CNC machine tools, industrial robots, humanoid robots, aerospace and defense, semiconductors, and medical equipment.
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Luoyang Yadian Machinery Equipment Co., Ltd. is a comprehensive manufacturer integrating the R&D, production and sales of precision bearings. Leveraging the technical strengths of Luoyang’s local bearing industry cluster, the company specializes in intelligent manufacturing of high-precision bearings and focuses on the segmented high-end precision bearing market.
CNC rotary table bearings — YRT series rotary table bearings can be divided into three major types according to different structures and operating conditions: standard YRT rotary table bearings, YRTS high-speed rotary table bearings and YRTM rotary table bearings. A set of retainers is additionally fitted in the radial direction of YRTS high-speed rotary table bearings, enabling this series to achieve higher rotational speed compared with the other two models.
RU (YDRU) series cross roller bearings are equipped with mounting holes on both inner and outer rings, eliminating the need for fixing flanges and support bases for easier installation. Their integrated inner and outer rings deliver stable rotational accuracy and torque, and the bearings can be applied to working conditions with either outer ring rotation or inner ring rotation.
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