Linear Shaft, Straight Type, S Series

Question: What is a Linear Shaft Straight Type, and how is it different from other shaft types?

Answer: A Linear Shaft Straight Type is a precision-ground cylindrical shaft with a uniform outer diameter across its full length. Unlike stepped or hollow shafts, the straight type provides consistent support for linear motion components, making it ideal for use with linear bushings and bearings where smooth, low-friction travel is required.

Question: What material is used in the Linear Shaft Straight Type S Series, and why?

Answer: The Linear Shaft Straight Type S Series is manufactured from SUJ2 bearing steel, known for its high hardness, wear resistance, and dimensional stability. This ensures long service life under repeated sliding contact and is especially beneficial in precision machinery and automation systems.

Question: What diameter and length options are available for the Linear Shaft Straight Type S Series?

Answer: The Linear Shaft Straight Type is available in outer diameters ranging from 3 mm to 40 mm and lengths from 100 mm to 3000 mm, adjustable in 1 mm increments. This flexibility allows engineers to design systems with shafts that precisely match their dimensional requirements.

Question: How is the Linear Shaft Straight Type used in linear motion applications?

Answer: The Linear Shaft Straight Type serves as a guide element for linear bearings, bushings, or slides. By providing a smooth, hardened surface, it ensures accurate and stable motion while reducing friction and wear in automation equipment, CNC machines, and robotics.

Question: Can the Linear Shaft Straight Type be customized or modified after purchase?

Answer: While the shaft is delivered in precision-ground standard sizes, it can be further customized through cutting, drilling, or surface machining depending on application needs. However, care must be taken to maintain surface hardness and dimensional accuracy, especially in high-precision systems.

Question: What are the main advantages of using the Linear Shaft Straight Type in mechanical design?

Answer: The Linear Shaft Straight Type offers:
• High load-bearing capacity due to hardened SUJ2 steel.
• Smooth travel for linear bearings and bushings.
• Wide size availability for versatile applications.
• Easy integration in automation, robotics, and industrial machinery.
• Long service life with minimal maintenance.

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