The Motor Rotor Shaft is an important transmission component used inside the electric motor. It is mainly used to connect the motor rotor and the output device to achieve the functions of power transmission and rotational support. It is widely used in household appliance motors, industrial motors, fan motors, automotive motors and other fields.
Material Options & Their Advantages
We offer rotor shafts in different stainless steel grades to match specific performance and environmental conditions:
SUS303 – Free-Cutting Stainless Steel
1. Suitable for machining high-precision parts.
2. Contains sulfur and selenium, which can reduce cutting resistance and improve efficiency.
3. Suitable for small motors, electronic actuators and automation parts that require precision but have moderate corrosion resistance.
SUS304 – General-Purpose Stainless Steel
1. Corrosion resistant, suitable for most environments.
2. High mechanical strength and excellent wear resistance.
3. Commonly used in electric motors, medical equipment, food processing machinery and industrial automation systems.
SUS316 – High-Corrosion-Resistant Stainless Steel
1. Enhanced corrosion resistance due to the presence of molybdenum (Mo), very suitable for marine and chemical environments.
2. Suitable for marine engines, offshore drilling equipment, medical equipment and high-performance industrial machinery.
Key Features and Benefits
High concentricity
The motor rotor shaft is processed by CNC lathe in one step, and the circular runout is controlled at ≤0.01mm, which can effectively ensure that the motor remains stable during high-speed operation and reduce mechanical vibration and noise.
High hardness
The motor rotor shaft is subjected to high-frequency quenching and tempering treatment, and the surface hardness can reach HRC 58±2, which significantly improves the wear resistance of the shaft.
Stable structure
The keyway and end face of the rotor shaft have high precision, and are processed by high-precision grinders and CNC wire cutting to ensure stable dimensions and accurate positioning.
Stable and reliable performance
All shaft products are made of raw materials that have passed third-party inspections such as SGS and RoHS, with stable metal structure, excellent mechanical properties, and good corrosion resistance. We can provide material composition test reports according to customer requirements to enhance traceability and material safety during the procurement process.
Company Strength
Shenzhen Sanhexing Shaft Manufacturing Co., Ltd. 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.
Wide range of product applications: used in automobiles, drones, power equipment, industrial robots, electronic appliances, motors, toys and other industries.
Rich experience: The company has more than 10 years of experience in this field.
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.
Accept ODM/OEM services: The CNC processing series has more than 16 years of experience and can customize and process various special copper and aluminum special-shaped precision parts according to drawings or samples.
Applications
Household appliance motors
Widely used in drive motors in household appliances such as washing machines, air conditioners, vacuum cleaners, electric fans, etc., to support the rotor and transmit power to achieve efficient operation of the motor.
Industrial motors
Applicable to the drive systems of industrial fans, water pumps, power tools, electric actuators and other equipment to meet the power output requirements under long-term continuous operation and high-load working environments.
Automobile motors
Used in window motors, wiper motors, seat motors and new energy vehicle drive motors, etc., requiring the rotor shaft to have high wear resistance and good dynamic balance performance.
Small precision motors
Adapted to precision electronic equipment such as drones, robots, smart homes, electric toothbrushes, etc., with high requirements for the dimensional accuracy, concentricity and material stability of the rotor shaft.
Fans and ventilation systems
Motors used in ventilation systems such as industrial fans, cooling fans, heat exchange equipment, etc., to ensure long-term stable operation and reduce noise and shaft wear.
Customization & Value-Added Services
✔ Custom Precision Tolerances – Ultra-tight tolerances for high-speed and high-efficiency motor applications.
✔ Surface Treatments – Chrome plating, nickel plating, black oxide coating, and nitriding for enhanced performance.
✔ Specialized Machining – Keyway cutting, threading, and grooving based on customer specifications.
✔ Prototype & Mass Production – From small batches to large-scale production, ensuring consistency and reliability.
For inquiries, technical details, or custom orders, please contact us!
FAQ
Q: 1. Do you provide samples? How long is the sample delivery time?
A: Yes, we support sample production. Samples of conventional specifications can be delivered within 3-5 days; non-standard customized samples are generally completed within 7-10 days.
Q: 2. What is your minimum order quantity? Can a small batch be tried first?
A: Conventional models support small batch trial orders, and the minimum order quantity is generally 100 pieces; the minimum order quantity of special customized products can be negotiated and adjusted.
Q: 3. Can you provide product dimension drawings or technical data?
A: Yes. We can provide standard dimension drawings, 3D model files, technical parameter tables and material test reports to facilitate customer design and docking.
Q: 4. Can the motor rotor shaft be copied or reverse developed according to the sample provided by the customer?
A: Yes. After the customer provides the sample, we will conduct dimensional mapping, material analysis, and copy processing after confirming the needs, which is suitable for no drawings or original factory matching replacement needs.
Q: 5. Is the product fully inspected before leaving the factory? What is your quality control process?
A: We conduct full inspection on key dimensions and functional positions, and random inspection on other dimensions. The inspection process includes dimension inspection, concentricity inspection, hardness inspection and surface treatment confirmation to ensure that each batch of products meets the standards.
Q: 6. How is the packaging method? Is it suitable for long-distance transportation?
A: The products are treated with anti-rust oil + packaged in independent plastic bags, and then packed in pressure-resistant cartons, with pallets or wooden boxes on the outside, which are suitable for long-distance transportation by sea, air or land.
Q: 7. Can the motor rotor shaft provide one-stop service with processed accessories (such as gears, bearings, etc.)?
A: According to customer needs, we can assist in the matching processing of gears, pin holes, bearing press-fitting, etc., reduce customers' secondary processing costs, and improve assembly efficiency.
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