China Professional Solid Motor Shaft, Hollow Motor Shaft, General Purpose Motor Shaft Manufacturer & Exporter

Who We Are

High-precision motor shaft professional manufacturer

Ningbo Guanshuo Precision Hardware Co., Ltd. was established in 2016 and is located in Zhejiang Province, Ningbo City, China. It focuses on the research and manufacturing of high-precision motor shaft cores. It is a professional manufacturer of high-precision motor shafts that integrates R&D, production, and sales. The company has been deeply engaged in the field of precision hardware processing for over a decade. It is driven by technological innovation and focuses on the high-end component niche market. It is a national-level high-tech enterprise and has now become one of the core suppliers for the new energy vehicle, industrial automation, and home appliance industries. The company's R&D team integrates R&D, production, sales, motor shaft cores, automotive components, stainless steel friction welding shafts, medical equipment accessories, water pump and valve shafts, rotating shafts, motor shafts, etc. It has 11 patent technologies. With technological innovation as the core, it is equipped with advanced CNC processing equipment and a detection system. It has passed ISO9001 quality management certification and is committed to providing customers with precise and durable customized shaft solutions.

Double Keyed Slot Motor Shaft

Double Keyed Slot Motor Shaft is a high-precision core transmission component manufactured by Guanshuo Precision. As a professional Chinese manufacturer with over ten years of industry experience, we adopt a symmetrical parallel double keyway design and double-point meshing force structure to ensure more uniform and stable torque transmission, with significantly better eccentric load and impact resistance than traditional single keyway products. Made of high-quality alloy steel or carbon steel with quenching and tempering heat treatment, combined with CNC turning-milling integrated precision machining, the keyway symmetry to the axis reaches ≤0.02mm.

Single Keyway Motor Shaft

Guanshuo Precision Hardware's Single Keyway Motor Shaft is engineered for superior torque transmission and lasting durability, featuring high-strength alloy steel, precision-ground surfaces, and strict quality control to ensure reliable operation under heavy loads and frequent reversals. With ISO-certified production, flexible customization, and global technical support, it helps reduce maintenance downtime and extends equipment life across machine tools, automation lines, and EV drivetrains.

Stainless Steel Smooth Motor Shaft

Stainless Steel Smooth Motor Shaft is expertly manufactured by Guanshuo, a professional manufacturer from China. Made of premium stainless steel and processed through precision grinding and polishing, its surface roughness can reach Ra0.8μm or even higher precision, effectively reducing frictional resistance and improving transmission efficiency and service life. The product is widely used in food machinery, medical equipment, chemical equipment and other fields with strict requirements for hygiene and corrosion resistance, featuring multiple advantages such as corrosion resistance, wear resistance and cleanliness. With over ten years of experience in precision hardware processing, Guanshuo is equipped with 26 CNC cylindrical grinders and other advanced equipment, holds ISO9001 certification, and provides high-quality customized shaft solutions for global customers.

Precision Grinding Of Smooth Motor Shafts

As a leading Chinese manufacturer of precision motor shafts, Guanshuo delivers Precision Grinding Of Smooth Motor Shafts with surface roughness as low as Ra≤0.4 μm and dimensional accuracy up to IT5-IT6 grade. Backed by ISO9001 certification, 11 granted patents, and a fleet of 26 CNC cylindrical grinders and 6 high-precision centerless grinders, we provide one‑stop custom shaft solutions for new energy vehicle motors, industrial automation, and precision instruments. Our rigorous quality control and responsive service have earned us long‑term partnerships with globally recognized brands.

Established in 2016

Our Advantages

1. Authoritative Qualifications

As a national-level high-tech enterprise, Freshine has 11 patent technologies and passed ISO9001 quality management certification, ensuring the reliability of our products as a top China Supplier.

2. Advanced Production Strength

Our China Factory is equipped with advanced CNC processing equipment and a strict detection system, enabling us to produce precise, durable products that meet high-end market demands.

3. Professional R&D Team

Our R&D team integrates R&D, production and sales experience, focusing on technological innovation to provide customized solutions for different industries.

4. Rich Industry Experience

With over a decade of engagement in precision hardware processing, Freshine has become a core supplier for new energy vehicles, industrial automation and home appliance industries.

What We Do?

Focusing on the R&D and manufacturing of high-precision motor shafts

1. Core Business Orientation

Freshine, the brand of Ningbo Guanshuo Precision Hardware Co., Ltd., is a professional China Manufacturer, Supplier, and Factory specializing in the R&D, production and sales of high-precision motor shaft cores and related precision hardware components.

2. Company Basics

Established in 2016, our company is located in Ningbo City, Zhejiang Province, China, with over a decade of deep experience in the precision hardware processing industry.

3. Product Scope

We provide a full range of products, including motor shafts, motor shaft cores, automotive components, stainless steel friction welding shafts, medical equipment accessories, water pump and valve shafts, and rotating shafts for global clients.