三和ニードルベアリング List of Products and Services

Sanwa Needle Bearing's "High Precision Roller Needle" can be custom-made for small quantities. Design is flexible, and material selection is possible. The processing range is an outer diameter of φ0.5 to φ20.0 and a total length of 0.9mm to 150mm. Applicable materials include SUJ2, SUS, ceramic, and carbide. 【Processing Precision】 ■ Diameter mutual difference: 0.0001mm ■ Cylindricity: 0.0001mm ■ Surface roughness: Ra0.02 ■ Roundness: 0.0001mm *For more details, please refer to the PDF document or feel free to contact us.

• Other contract services
• Processing Contract

The "Shaft & Sleeve" of Sanwa Needle Bearings contributes to the miniaturization and high precision of the mounted unit by using a high-precision shaft and a resin sleeve. By combining and adopting a shaft that has been processed with high precision for straightness and surface roughness, we improve sliding performance. Additionally, we use PPS + CFRP for the resin sleeve. 【Features】 ■ By setting the resin sleeve, clearance can be freely adjusted. ■ Even with small diameters and long shapes, straightness can be maintained, achieving smooth movement. *For more details, please refer to the PDF materials or feel free to contact us.

• Other contract services
• Processing Contract

The "Small Diameter High Precision Sliding Screw" of Sanwa Needle Bearing can assist in the miniaturization and weight reduction of units. By combining a special synthetic resin nut with a ground screw, the nut and screw can be adjusted to the desired clearance. Additionally, we offer sizes that are not available from other companies. 【Features】 ■ Compatible with screw sizes φ0.5 to φ4.0 ■ Achieves miniaturization and weight reduction of mounted units by reducing size *For more details, please refer to the PDF document or feel free to contact us.

• Other contract services
• Processing Contract

In our lead screw grinding, we perform screw grinding processing using dedicated machines developed for stable quality, high precision, and high efficiency for mass production. Processing is possible after hardening, allowing for hardness of Hv600 or higher and bending of 0.02mm or less. The clearance can be controlled for sets with nuts. Additionally, we consistently produce some of the world's smallest class nuts and screws in-house. 【Features】 ■ Uses large grinding wheels for processing tools, offering excellent tool durability ■ Capable of reducing dimensional variation within lots ■ Achieves good and stable surface roughness on the flank compared to cutting and rolling ■ Can process various materials including soft, hard, and hardened materials ■ Capable of processing hollow materials that are difficult to process with rolling or cutting ■ Allows for processing with minimized bending even for small diameter products *For more details, please refer to the PDF document or feel free to contact us.

• Other contract services
• Processing Contract

Sanwa Needle Bearing is a manufacturer of metal components specializing in "ultra-precision machining." We turn our customers' "wants" into "shapes." Our products undergo high-precision processing at the micron and sub-micron levels, and our management system ensures complete traceability. We are capable of consistent production in-house, from prototypes and small quantities to mass production. 【Business Overview】 ■ Precision micro shafts and various precision metal components *For more details, please refer to the PDF document or feel free to contact us.

• Other contract services
• Processing Contract

At Sanwa Needle Bearing, we meet our customers' needs through original material development and global material procurement. We offer a rich lineup of materials including martensitic stainless steel, austenitic stainless steel, and ferritic stainless steel. Please feel free to consult us when you need assistance. 【Product Lineup】 ■ Martensitic stainless steel ■ Austenitic stainless steel ■ Ferritic stainless steel *For more details, please refer to the PDF document or feel free to contact us.

• stainless

Introducing Sanwa Needle Bearing's "High Precision and High Efficiency Step Grinding." We have developed a grinding machine capable of processing multiple steps simultaneously. This achieves high precision in coaxiality while reducing costs through decreased man-hours. "Want high precision stepped shafts, but costs..." "High precision products are expensive," you might think. We are here to help solve that problem. Please feel free to consult with us. 【Features】 ■ Can be processed in one grinding operation due to a new method ■ By grinding simultaneously, approximately 40% reduction in processing time is possible *For more details, please refer to the PDF document or feel free to contact us.

• Other contract services
• Processing Contract

We would like to introduce the original materials of Sanwa Needle Bearings. "Austenitic stainless steel 15MH" is a non-magnetic, high-hardness material. Its surface hardness is Hv500, with non-magnetism having a permeability of 1.01μ or less, and corrosion resistance equivalent to SUS304. Additionally, "Martensitic stainless steel KWS4MA" has a surface hardness of Hv700 or higher, providing superior sliding properties compared to SUS440C, and serves as a low-cost alternative to SUS440C. Furthermore, using our original material 15MH, we also manufacture high-precision products that maintain non-magnetism while achieving a hardness of Hv650 or higher through "15MH + SVC treatment." 【Features of Austenitic Stainless Steel 15MH】 ■ Non-magnetic high-hardness material ■ High hardness: Surface hardness Hv500 ■ Non-magnetic: Permeability of 1.01μ or less ■ Corrosion resistance: Equivalent to SUS304 *For more details, please refer to the PDF document or feel free to contact us.

• stainless

Sanwa Needle Bearing Co., Ltd. has been striving to expand its technology, production, and management both domestically and internationally, with a strong awareness of being the world's top shareholder in precision micro shafts. We have established an integrated in-house system for grinding, plastic deformation, cutting, and heat treatment, and our products, developed in collaboration with customers in fields such as automotive, machinery, semiconductors, and communications, have become mainstream. We will continue to deepen our creative technologies to always meet our customers' needs. 【Business Activities】 ○ Manufacturing and sales of precision micro shafts ○ Manufacturing and sales of various precision metal parts

• Drive system parts