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Linear shaft manufacturers & suppliers

Through more than 23 years development, now BOS Hydraulic have 3 factories,1 research center and 1 sales center. More than 100 customers from 40 countries and regions have established long-term business relationships with us. Products are certificated by national and international authority.
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Hard Chrome Plated Shafts

Hard Chrome Plated Shafts are precision-ground steel components with an electroplated chromium layer. This combination provides exceptional surface hardness, superior wear resistance, and excellent corrosion protection. These shafts ensure reliable performance and extended service life in hydraulic systems, industrial machinery, and automation equipment, offering outstanding durability under demanding operating conditions.

Hard Chrome Plated Shafts Series

Advantages of Linear Shaft Rod

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Leading technical expertise
Exquisite craftsmanship guarantees the long-lasting and stable quality of products
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Strict quality management system
BOS promise to manufacture and deliver strictly according to the drawing specifications
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Complete customization capabilities
BOS provides a full range of customized services
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Technical Support
Professional engineers with more than 20 years of experience always serving you.

Bos Linear Shaft Rod first choice

With years of experience in manufacturing linear shafts, we provide customer satisfaction through manufacturing and customization.

At Bos, we care about you and your company. We specialize in the customization, material selection, and manufacturing of linear shafts, and provide excellent services according to your needs.

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Hard Chrome Plated Shafts:
Standards for Industrial Movements

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In the intricate world of industrial machinery, where precision intersects with relentless mechanical stress, the integrity of every component becomes paramount. As a dedicated manufacturer with profound expertise in advanced surface engineering and precision machining, we have established ourselves as a global leader in the production of Hard Chrome Plated Shafts. These components are far more than simple metal bars; they are the critical, wear-resistant elements that guarantee the smooth, reliable, and long-lasting operation of countless machines. Our commitment is to engineer and supply Hard Chrome Plated Shafts that set the benchmark for performance, providing an unparalleled combination of dimensional stability, exceptional surface hardness, and superior corrosion resistance.
The fundamental excellence of our Hard Chrome Plated Shafts begins with the meticulous selection of substrate materials. We utilize high-strength, low-alloy steels, chosen for their superior mechanical properties and microstructural homogeneity. Each raw shaft is subjected to precision centerless grinding to achieve near-perfect geometric accuracy, ensuring critical straightness and concentricity. This foundational step is crucial, as any underlying imperfection would be magnified by the subsequent plating process. It is upon this perfectly prepared surface that we apply our signature hard chrome plating. Our proprietary electroplating process is a testament to our engineering prowess, developed over years of research and refinement. We do not merely apply a layer of chrome; we grow a dense, metallurgically coherent coating that is characterized by its extreme hardness, often reaching 65-70 HRC.
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Advantages of hard chrome plated shafts

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The advantages of specifying our Hard Chrome Plated Shafts are both immediate and long-term. The primary benefit is a dramatic extension of service life. The hard chrome surface drastically reduces wear rates, not only protecting the shaft itself but also significantly extending the life of associated seals and bearings, thereby reducing the total cost of ownership. Secondly, the exceptional corrosion resistance ensures operational integrity in humid, saline, or chemically aggressive environments, preventing the pitting and rust that lead to seal failure and fluid contamination. Furthermore, the ultra-smooth, low-friction surface finish we achieve minimizes running friction and prevents stick-slip motion, which is critical for achieving smooth, precise movement in high-speed or sensitive applications. Finally, the immense surface hardness provides outstanding resistance to scratch-inducing contaminants and abrasive dust, a common cause of premature failure in challenging industrial settings.

Reasons for choosing us

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Choosing our organization as your dedicated Hard Chrome Plated Shafts Supplier is a decision rooted in partnership and technical excellence. Our vertically integrated manufacturing process allows us to maintain absolute control over every stage, from raw material procurement to final inspection, ensuring traceability and consistent quality. Our quality assurance is relentless, employing coordinate measuring machines for dimensional verification, surface profilometers for finish analysis, and advanced non-destructive testing techniques to guarantee the integrity of both the substrate and the plating bond. Beyond our manufacturing capabilities, we offer profound technical collaboration. Our engineering team possesses the expertise to advise on material selection, heat treatment protocols, and plating specifications to optimize performance for your unique application, whether it requires maximum wear resistance or superior corrosion protection.

Details and Applications of Linear Shaft

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Linear Shaft Rod is used as a motion platform for laser measurement equipment and semiconductor wafer inspection equipment.

Linear Shaft Rod China's Best Manufacturer

Bos Hydraulic, with its leading technical expertise, strict quality management system, continuous R&D investment, and efficient service team, has won wide recognition and trust from domestic and foreign markets, becoming an outstanding brand in the Linear Shaft Rod industry
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Bos Linear Shaft Rod Manufacturers

Linear Shaft Rod – The Ultimate FAQ Guide

A Linear Shaft Rod is a precision-ground component that provides guided linear motion in machinery. Typically made from hardened steel or stainless steel with a hard chrome-plated finish, it offers high rigidity, excellent wear resistance, and corrosion protection. Its superior straightness and smooth surface ensure minimal friction and reliable performance in automation systems, bearing guides, and support applications.
What materials are commonly used for Linear Shaft Rods?

The most common materials are high-carbon chromium steel (like SUJ2/52100), which is hardened and chrome-plated for optimal wear resistance. For corrosive environments, stainless steel (such as SUS304 or 440C) is used, offering excellent corrosion resistance though with generally lower hardness than hardened steel.


Why is surface hardness important for a Linear Shaft Rod?

High surface hardness (e.g., 58-65 HRC) is crucial for resisting abrasion from linear bushings. A hard surface minimizes wear, prevents galling, and significantly extends the service life of both the rod and the mating bearing, ensuring long-term precision.

How do I interpret tolerance grades like g6 or h6?

These are international tolerance grades for shafts. A grade like g6 indicates a sliding fit, perfect for applications requiring precise movement with minimal play. h6 is a precision location fit, offering very tight tolerances for high-accuracy systems. The choice depends on your required balance of freedom of movement and positional accuracy.


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