Linear Motion Parts
With the reasonable design and rigorous process control, our Linear motion parts, especially Ball Screws and Planetary Roller Screw have a tight fit,smooth transmission, consistent left and right movement softness, good dynamic stability, higher transmission efficiency of the screw pair, smaller torque, and smaller motor load.
Your one-stop solution providing Linear Motion Accessories
Kezhen is one of the few suppliers of hard and cold rolling screw all over the world. We have the unique nut polishing technology, centerless grinding screw technology, screw polishing technology, screw self-centering and knife grinding technology, With the reasonable design and rigorous process control, our Linear Motion Parts, especially Ball Screws and Planetary Roller Screw have a tight fit,smooth transmission, consistent left and right movement softness, good dynamic stability, higher transmission efficiency of the screw pair, smaller torque, and smaller motor load.
The Ball Screws and Planetary Roller Screw implements two processes: cold rolling and grinding, and provides customized services according to your needs.
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Equipment for Linear motion industry
Kezhen focus on the R&D and manufacturing of Miniature Ball Screws ,Planetary Roller Screw and Trapezoidal screw. In order to control our products’ quality, we have self-made core special equipment including CNC external thread grinding, CNC internal thread grinding, testing instruments, and even tooling fixtures and tools are completed independently. We control the entire vertical industry chain and process to ensure the consistent product quality of Linear Actuator Accessories. Some equipment as follows:
Here in Kezhen, all the precision machines and our rich experienced employee are ensured to meet your requirements of Linear motion components, such as Ball Screws,Planetary Roller Screw.
The dimensions tolerance and surface quality of Linear motion parts can be accurately controlled perfectly through digital control technology,thus to achieve high precision, high efficiency and high reliability manufacturing.
Please contact us and we will be at your service 100% if you have any needs of Linear Motion Accessories.
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The production technical requirements of Linear Motion Parts include geometric accuracy, materials and heat treatment, preload, circulation method, flange shape, lubrication requirements, etc.
Geometric accuracy:The geometric accuracy of Precision Ball Screws includes stroke deviation, runout inspection and position tolerance. Stroke deviation inspection is particularly important, which ensures the accuracy of the Ball screw during operation.
Material and heat treatment: The material of Ball Screw Linear Actuator is usually high-quality alloy steel, and the mechanical properties and durability of the material are improved through scientific heat treatment processes. For example, the materials of screws and nuts are usually SCM450 and SCM415H, and the hardness requirement is between HRC58°~62°.
Preload and pre-stretch load: Miniature Ball Screw may require a certain preload or pre-stretch load during operation, which helps to increase the rigidity and precision of the Ball screw.
Circulation mode: The circulation modes of Ball screws include internal circulation, external circulation and end plug circulation, each of which has its specific application scenarios and advantages.
Flange shape: The choice of flange shape should be determined according to the actual space of the installation location. There are round flange, single cut edge, double cut edge and four cut edges.
Lubrication requirements: Proper lubrication is a key factor in ensuring the long-term accuracy and life of Ballscrew Actuator. The selection and regular replacement of lubricants are very important.
Service life: Depending on the application scenario, the theoretical life of the Ball Screw Assemblies is also different. For example, it can reach 20,000 hours in machine tools and 10,000 hours in general machinery.
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