Ningbo Guanshuo Precision Hardware Co., Ltd. is a leading high-precision motor shaft manufacturer and supplier in China, specializing in the R&D, production and sales of Single Step Motor Shaft. Established in 2016 and located in Ningbo, Zhejiang Province, the company has been deeply engaged in the precision hardware processing field for over a decade. It is a national-level high-tech enterprise. Guanshuo's shaft is processed using CNC turning technology, with stable and controllable dimensional accuracy, coaxiality and surface roughness, meeting general transmission accuracy requirements. The product features a simple structure, fewer turning processes, high processing efficiency and low scrap rate, with obvious overall cost advantages. The single-step structure forms a natural axial positioning surface on the shaft body. Bearings, gears, rotors and other components only need to be pushed to the step surface during assembly to complete positioning and axial limitation, without the need for additional retaining rings or circlips, greatly simplifying the assembly process. The step transition is smooth, stress distribution is reasonable, the shaft body has strong rigidity, runs smoothly with low vibration, and is suitable for medium and low-speed, medium and light-load transmission scenarios. The product quotation sheet is clear and explicit, facilitating procurement selection and cost accounting.
Guanshuo's Single Step Motor Shaft is processed using mature CNC turning technology, with the entire production process carefully designed to ensure that every shaft meets design requirements.
1. Incoming Material Inspection
Raw materials first undergo material composition analysis and hardness testing upon entering the factory. Guanshuo is equipped with hardness testers and other inspection equipment to ensure that the mechanical properties of each batch of raw materials meet standard requirements. Only materials that pass incoming inspection can proceed to the next process.
2. CNC Turning Forming
The core machining process for the product is CNC turning. Since this product has only a single-step structure, the number of turning processes is significantly reduced compared to multi-step shafts. The outer circle, step end face, chamfers and other main features can be completed in one clamping, avoiding cumulative errors from multiple clampings. Guanshuo has over 60 ordinary CNC machines and 3 turning-milling combined machining centers, with sufficient production capacity to meet rapid delivery requirements for large-volume orders.
3. Dimensional Accuracy Control
The working shaft diameter tolerance of the product is implemented according to g6/h6 standard. Through the precise control system of CNC equipment and online inspection methods, Guanshuo ensures that every shaft's dimensions are within the tolerance range. The step end face perpendicularity is controlled within ≤0.02mm, ensuring close fit and accurate positioning between components and the step surface during assembly.
4. Surface Finishing
The step end face roughness of the product is controlled at Ra≤1.6~3.2μm, and chamfers at both ends are executed according to C0.5~C1.5 standard. According to customer requirements, the outer circle surface can be further precision ground to improve surface finish and fit accuracy.
5. Final Inspection
Every product undergoes strict final inspection before shipment. Guanshuo is equipped with precision inspection equipment including two-dimensional projectors, surface roughness gauges, cylindricity gauges, etc., to comprehensively inspect key parameters such as shaft diameter, step end face perpendicularity, surface roughness, chamfer dimensions and more, ensuring products meet specification requirements.
The core design feature of the product lies in its single-step structure. In transmission shaft design, step surfaces are mainly used for axial positioning and limitation of bearings, gears, rotors and other components.
Although traditional multi-step shafts have independent positioning steps for each component, they have high processing costs, large accumulated tolerances, and complex assembly. The Single Step Motor Shaft adopts a "one-step positioning" design concept - all components requiring axial positioning share the same step surface as the reference. During assembly, components are pushed along the shaft body until they contact the step end face, completing axial position determination.
This design has multiple advantages: it reduces the number of steps on the shaft body, lowering processing difficulty and cost; unifies the positioning reference, reducing tolerance accumulation; simplifies the assembly process, improving production efficiency; and eliminates the need for additional parts such as retaining rings and circlips, reducing material and management costs.
The cost advantages of the product are an important reason for its market popularity. Guanshuo helps customers reduce comprehensive costs from multiple dimensions:
1. Material Cost: The product has a simple structure and high material utilization. Compared with multi-step shafts that require more machining allowance, the single-step shaft consumes less material.
2. Processing Cost: With fewer turning processes, fewer clamping operations, and lower tool consumption, the single-piece processing time is significantly shortened. Improved processing efficiency directly translates into lower per-unit cost.
3. Low Scrap Rate: A simpler processing workflow means fewer points of failure. Guanshuo's Single Step Motor Shaft scrap rate is controlled at a low level, reducing waste of materials and labor hours.
4. Assembly Cost: Single-step positioning eliminates the need for additional retaining rings or circlips, reducing part variety and assembly time, and lowering the complexity of the final assembly line.
5. Inventory Management Cost: With a high degree of structural standardization and unified specifications, it facilitates inventory management and multi-project sharing.
Application Scenarios
● Medium and low-speed operating conditions (speed ≤6000rpm)
● Medium and light-load transmission scenarios (moderate torque, no severe impact loads)
● Large-volume standardized production requirements
● Cost-sensitive economical projects
● Production environments with high assembly efficiency requirements
Selection Recommendations
When purchasing a shaft, the following parameter matching should be focused on: working shaft diameter and tolerance grade (g6/h6), step end face perpendicularity (≤0.02mm), step end face roughness (Ra≤1.6~3.2μm), chamfer dimensions at both ends (C0.5~C1.5), and material and hardness requirements.
Guanshuo has a comprehensive processing equipment system and quality control system, providing solid support for mass production of the product.
● Equipment Configuration: 26 CNC cylindrical grinders, 6 high-precision centerless grinders, 3 turning-milling combined machining centers, 2 machining centers, 6 hobbing machines, and over 60 ordinary CNC machines. The diverse equipment types ensure that the entire process from rough turning to finishing is completed independently in-house, reducing outsourcing and ensuring quality control.
● Inspection Capability: Hardness testers, two-dimensional projectors, surface roughness gauges, gear testing centers, cylindricity gauges, fully automatic optical inspection equipment. From raw materials to finished products, inspection points are set at every key process step.
● Certification System: ISO9001 quality management system certification runs through the entire process of R&D, production and sales. 11 patented technologies cover multiple fields including bearing sealing structures and combined motor shaft structures.
● Original Factory Manufacturing: Guanshuo is a direct manufacturer of Single Step Motor Shaft, with full-process control from raw materials to finished products.
● Sufficient Production Capacity: A team of over 50 employees ensures on-time delivery of large-volume orders.
● Quick Response: Inquiry replies within 24 hours, rapid response to customization requirements.
● Comprehensive After-Sales: 24-month extended warranty, global problem diagnosis within 48 hours.
● Cooperative Clients: Trusted by brands including Goldsmiths, French Decathlon, Omron, and Yasi.
To help procurement professionals quickly evaluate the quality level of the shaft from different suppliers, the following table compares Guanshuo with ordinary manufacturers on key indicators:
| Dimension | Guanshuo | Ordinary Manufacturer |
|---|---|---|
| Step End Face Perpendicularity | ≤0.02mm | Usually ≤0.05mm |
| Step End Face Roughness | Ra≤1.6~3.2μm | Ra≤3.2~6.4μm |
| Shaft Diameter Tolerance Grade | g6 / h6 | Usually h8 or lower |
| Processing Equipment | 26 CNC cylindrical grinders, 3 turning-milling centers, 60+ CNC lathes | Old equipment, mainly ordinary lathes |
| Inspection Capability | Hardness tester, projector, roughness gauge, cylindricity gauge, optical inspection | Only basic gauges, no precision inspection |
| Delivery Time & After-Sales | Stable for large orders, 24-month warranty, 48h diagnosis | Unstable delivery, no formal after-sales |
The above comparison clearly shows that Guanshuo significantly outperforms ordinary manufacturers in precision control, equipment scale, inspection capability and after-sales service. Choosing Guanshuo's Single Step Motor Shaft means obtaining more stable quality, more reliable delivery and more comprehensive service support.
A: The working shaft diameter tolerance is implemented according to g6/h6 standard, step end face perpendicularity ≤0.02mm, end face roughness Ra≤1.6~3.2μm, and chamfers at both ends C0.5~C1.5.
A: CNC turning is used, with outer circle, step end face and chamfers completed in one clamping. Further precision grinding of the outer circle can be performed as required.
A: It is mainly suitable for medium and low-speed (≤6000rpm) and medium and light-load transmission scenarios. For high-speed or heavy-load applications, multi-step shafts or hollow shafts are recommended.
A: The single step surface is a natural positioning surface. Components are pushed to the step surface to complete axial positioning without the need for retaining rings or circlips, saving assembly time and part variety.
A: It refers to the shaft body having only one step surface, which serves as the common positioning reference surface for all components requiring axial positioning, such as bearings, gears and rotors.
A: 24-month extended warranty, global problem diagnosis within 48 hours, free process upgrade solutions, and inquiry replies within 24 hours.
A: Simpler structure, fewer turning processes, higher processing efficiency, lower scrap rate, faster assembly, and better overall cost effectiveness.
A: Guanshuo outperforms ordinary manufacturers in step end face perpendicularity (≤0.02mm), equipment scale (26 cylindrical grinders), inspection capability and after-sales service, ensuring better quality and delivery reliability.
Address
Qingqing Road 268-1, Jiaochuan Sub-district, Zhenhai District, Ningbo City, Zhejiang Province, China
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