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Linear Shaft

Your Professional Linear Shaft Manufacturers

Shenzhen Sanhexing Shaft Manufacturing Co., Ltd. was established on May 26, 2010, located in the Wan Feng Technology Park, Shajing, Bao'an District, Shenzhen. is a private enterprise specializing in the customized production of various precision mechanical hardware parts and non-standard precision shafts. Specializing in the production of stainless steel motor shafts, stepped shafts, knurled shafts, screw shafts, worm shafts, gear shafts, spindles, and high-precision shaft products.

Precision Linear Shaft

This precise linear axis is characterized by high straightness, smooth surface, and precise

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Hardened Steel Linear Shaft

This hardened steel linear shaft is designed specifically for high wear industrial applications,

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Tel: +8613923765032
Email: szshaft@aliyun.com
Add: Room 709, Chuangye Building, Zhongxin Road, Shajing, Bao'an District, Shenzhen.

Why Choose Us

Our factory
Our factory covers an area of 1,600 square meters, We are a private enterprise specializing in the custom production of various precision mechanical hardware components and non-standard precision shafts, employing over 50 staff members, including 15 technical design and management personnel and 8 quality control staff, with strong capabilities in design development and quality management.

Wide range of product applications
Applied in automobiles, drones, electrical equipment, industrial robots, electronic appliances, motors, toys and other industries.

Rich experience
The company has more than 10 years of experience in this field. Has a long-standing reputation in the industry, which makes it stand out from its competitors.

Quick response
We promise to respond to your inquiries within 24 hours to ensure that you receive the information and support you need in a timely manner.

Benefits of Linear Shaft

High Dimensional Accuracy
The diameter tolerance is usually within ±0.003mm or smaller, providing a perfect fit with high-precision sliding components such as linear bearings, minimizing gaps and errors.

Low Friction Coefficient
The surface is finely polished, with roughness typically below 0.4μm, reducing sliding friction and improving motion efficiency.

Wear Resistance
The shafts are hardened through quenching or induction heat treatment, achieving a surface hardness of HRC58-64, significantly enhancing durability and making them suitable for long-term, high-frequency use.

High Fitness
Chamfer on both ends, easier to install linear bearings and won't hurt fingers when installing it.

The Applications of Linear Shaft

Medical – For the sliding motion mechanism of MRIs, dental chairs, instrument adjustments, scan heads, surgical tables, and more.

Automotive – Anywhere where linear power for sliding is needed, such as car seat mechanisms and similar.

Aerospace – Used in many mechanisms such as the plane/passenger seat adjustment.

Packaging/printing – Many printing and food packaging machines use linear motion shafts in their production.

Classification of Linear Shaft

By Material

Carbon Steel Shafts: Affordable and suitable for general industrial environments.
Stainless Steel Shafts: Highly corrosion-resistant, ideal for humid or chemically corrosive conditions.
Chrome-Plated Shafts: Enhanced corrosion and wear resistance through surface chrome plating.
Hollow Shafts: Lightweight, suitable for weight-sensitive applications.

By Processing Method

Hardened Shafts: Surface hardened for high durability and wear resistance.
Non-Hardened Shafts: Suitable for low-load environments, offering cost savings.

By Usage

Guide Shafts: Used for guiding sliding components.
Drive Shafts: Used for transmitting power and controlling motion.

Specification of Linear Shaft

Items	Linear shaft	Flexible shaft	Hollow shaft
Material	CK45, SUJ2	CK45	SUJ2
Heat treatment	Induction hardened	Not hardened	Induction hardened
Surface hardness	HRC58±2	HRC15±3	HRC60±2
Surface treated	Hard chrome plated	Hard chrome plated	Hard chrome plated
Precision	H7, g6, h6	H7, g6	H7, g6, h6
Roundness	Max3.0µm	Max3.0µm	Max3.0µm
Straightness	Max5.0µm	Max5.0µm	Max5.0µm
Chrome thickness	20-30µm	30µm	30µm
Roughness	Max1.5µm	Max1.5µm	Max1.5µm
Process machinized	Threading, reduced shaft dia,coaxial holes drilled and tapped, flats-single or multiple, key way, snap ring grooves, radial holes drilled and tapped, chamfering

Lead Time

Quantity (pieces)	1 - 10	11 - 100	101 - 2000	> 2000
Lead time (days)	5	7	15	To be negotiated

Packaging and Transportation

productcate-554-381 productcate-554-386

FAQ

Q: Can you perform end processing?

A: Yes, our skilled team has extensive experience in end-machine processing. Please provide the drawing and tolerances, and we’ll assist you based on those specifications.

Q: How can I request a sample to check your quality?

A: You can place a sample order before making a bulk order to assess our quality.

Q: Can I choose the sizes of the linear shaft?

A: Yes, we offer various sizes, with diameters ranging from 5mm to 150mm and lengths up to 6000mm.

Q: When will I receive the quotation?

A: We usually provide quotes within 12 hours after receiving your specific requirements, including quantity, dimensions, model number, and trade terms. If you need an urgent quote, please call us or mention this in your email so we can prioritize your request.

Q: What payment methods do you accept?

A: Payment options depend on the trade terms and include T/T, L/C at sight, Western Union, PayPal, and MoneyGram.

Q: What is the difference between rotary shaft and linear shaft?

A: Any kind of sliding or translating motion requires a linear shaft. However, if you need to transmit power over a distance, or if you need to adjust the relative speed of some rotation (see our article on Sizing Timing Belts and Pulleys), a rotary shaft is your answer.

As one of the most professional linear shaft manufacturers and suppliers in China, we're featured by quality products and low price. Be free to buy customized linear shaft made in China here from our factory. Contact us for quotation and free sample.

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