[Official] Sanwa Needle Bearing Co., Ltd.

What is precision machining of SUS304? Explanation of machining characteristics, accuracy limits, and design considerations.

SUS304 is known as a representative stainless steel material that offers an excellent balance of corrosion resistance and workability. It is used in a wide range of applications, including food processing machinery, medical equipment, semiconductor equipment, and industrial machinery, and is adopted in fields where high reliability is required in corrosive environments. […]

Processing technology

What is the role of polishing in shafts? Introducing technologies and processing examples that achieve high-precision finishing.

In shafts used in rotating and sliding mechanisms, not only dimensional accuracy but also surface condition significantly impacts product performance. Especially in bearing contact areas and sliding surfaces, even slight differences in surface roughness can affect vibration, wear, and lifespan, making it crucial to maintain stable performance. […]

Parts processing

Introducing grinding process examples for SUS (stainless steel) shafts! Required precision and design considerations.

Stainless steel (SUS) shafts are widely used in precision equipment, industrial machinery, and medical devices due to their excellent corrosion resistance and wear resistance. However, for applications requiring high precision, such as roundness and surface roughness, grinding is often combined with turning. […]

Parts processing

What is high-precision machining of small-diameter shafts? We introduce precision and design tips from manufacturing examples.

In precision mechanisms and small devices, small-diameter shafts with diameters of a few millimeters or less are sometimes used. In recent years, with the miniaturization and increased functionality of machinery, there has been a demand for high-precision small-diameter shafts that are not only thin but also possess strict control over geometric accuracy, including roundness and surface roughness. […]

Parts processing

Even small-batch prototypes can be used to verify precision machining techniques! Main processing methods and ordering tips.

With the advancement of design tools such as CAD and CAE, prototype-less design verification is becoming widespread. However, for components where functional accuracy directly impacts product performance, such as rotating and positioning mechanisms, the process of creating and verifying prototypes remains crucial. This is especially true for shafts and lead screws. […]

Processing technology

What is machining difficult-to-machine materials? This article explains why machining these materials is difficult, how to address the challenges, and tips for ensuring accuracy.

When designing high-performance machine parts, materials with excellent properties such as heat resistance, wear resistance, and corrosion resistance are required. Many materials that achieve these properties are difficult to process and are called "hard-to-machine materials." While hard-to-machine materials enhance product performance, they also present challenges in the manufacturing process. […]

Processing technology

Explaining the types of shafts and bearings! What are the guidelines for using them based on their relationship and roles?

Shafts and bearings are essential for rotating mechanisms. There are many different types of shafts and bearings, and they are used depending on the application. The performance of a rotating mechanism is not determined by the bearings or shafts alone, so the combination and design of each element affect the lifespan and precision of the rotating structure. […]

Parts processing

Explaining the limits of precision and the concept of machining based on examples of ultra-precision parts machining

When considering machining ultra-precision parts, determining the level of precision that can be achieved and selecting the machining method are important points to consider. Ultra-precision machining is not simply about finishing small dimensions, but about achieving high-level geometric tolerances and surface roughness in response to functional requirements such as rotational accuracy and sliding characteristics. […]

Processing technology

What are the types of cutting processes? The difference between milling and lathe processes and points to note when designing

Machining is a machining method that removes material through the relative movement of a tool and workpiece, resulting in a finished product with a specified shape and dimensions. The shape, precision, and cost that can be achieved vary greatly depending on the machining method and the machine tool used. In this article, we will systematically introduce the main types of machining […]

Processing technology

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