The core design concept of the product is "symmetrical force bearing, balanced transmission". The two keyways are distributed at 180° symmetrically on both sides of the shaft diameter. After assembly, the keys and keyways contact and bear force simultaneously, so that torque is input and output evenly from two directions, avoiding the eccentric load problem caused by unilateral force bearing in single keyway structures. This design not only reduces the shear stress of a single keyway, but also effectively suppresses radial runout and transmission clearance generated during high-speed rotation or frequent forward and reverse rotation, significantly improving the operational stability and precision of the entire machine.
1. Symmetrical parallel double keyways: The angle between the two keyways is strictly controlled at 180°±0.5°, with parallelism error ≤0.02mm, ensuring synchronous force bearing of double keys and lag-free torque transmission.
2. High-precision coaxiality: Integrated double-slot machining ensures coaxial accuracy of the shaft system after assembly, reduces radial runout, and lowers vibration and noise.
3. High-strength shaft body: Made of alloy steel or carbon steel base material strengthened by heat treatment, the overall hardness and fatigue resistance meet heavy-load working condition requirements.
The Double Keyed Slot Motor Shaft produced by Guanshuo reaches the industry advanced level in material selection, processing technology and performance. With more than ten years of experience in precision shaft manufacturing, we provide stable and reliable transmission solutions for customers.
Products are made of high-quality alloy steel or carbon structural steel. Raw materials undergo strict material inspection and spectral analysis after entering the factory to ensure that chemical composition and mechanical properties meet national standards. The finished shaft body undergoes quenching and tempering heat treatment processes, achieving an ideal structure with high surface hardness and good core toughness. It features excellent fatigue resistance, fracture resistance and wear resistance, and is not prone to deformation or wear under long-term high-load operation, effectively extending product service life.
All products adopt CNC turning-milling composite integrated processing technology, with high-precision CNC cylindrical grinders and centerless grinders for finish machining. Keyway dimensions and positional accuracy are strictly controlled. The factory is equipped with 26 CNC cylindrical grinders, 3 turning-milling composite machines, 6 high-precision centerless grinders and more than 60 other ordinary CNC machines. Full-process digital management ensures that the keyway width, depth, symmetry and parallelism of each shaft meet design tolerance requirements. The fit clearance is controllable, assembly is smooth, which greatly reduces on-site rework workload and improves overall assembly efficiency.
Compared with ordinary single keyway motor shafts, this product achieves improvements in multiple key performance dimensions:
1. Stronger load-bearing capacity: Double-point meshing disperses stress, rated torque transmission capacity increases by approximately 40%-60%, adapting to heavy-load conditions.
2. Excellent impact resistance: The symmetrical structure effectively absorbs forward and reverse impact loads, especially suitable for frequent start-stop and reversing equipment.
3. Smooth and low-noise operation: High coaxiality and small transmission clearance significantly reduce operating vibration and noise, improving overall machine precision level.
4. Longer service life: Heat-treated strengthened base material and precision-machined surface provide wear and fatigue resistance, reducing downtime maintenance frequency.
Guanshuo Precision strictly controls every dimensional tolerance and geometric tolerance of the double keyed slot motor shaft. The following are the core technical specifications of the product, all verified by professional testing equipment such as two-dimensional projectors and cylindricity measuring instruments:
| Parameter Item | Specification |
|---|---|
| Total length tolerance | ±0.5 mm |
| Angle between two keyways | 180°±0.5° |
| Symmetry of keyway to axis | ≤0.02~0.03 mm |
| Keyway symmetry and parallelism | ≤0.02 mm |
| Base material | High-quality alloy steel / carbon steel |
| Heat treatment method | Quenching + Tempering |
| Machining process | CNC turning-milling composite integrated machining |
| Customization range | Shaft diameter, key width, key depth, shaft length, surface treatment can all be customized |
In addition to the above core parameters, the company can also provide full-parameter customization according to customer-provided drawings or 3D models, covering different shaft diameter steps, thread sections, retaining ring grooves, chamfers and other complex structures to meet differentiated installation requirements of various equipment.
As a national-level high-tech enterprise, Guanshuo Precision always puts product quality and customer service first. The company has passed ISO9001 quality management system certification and holds 11 independent patent technologies. Among more than 50 employees, there are 3 engineering technicians and 6 full-time quality inspection personnel. Equipped with a complete set of testing equipment including hardness testers, two-dimensional projectors, surface finish gauges, gear testing centers and cylindricity gauges, we achieve full-process quality traceability from raw material warehousing to finished product delivery.
To help customers verify product adaptability and cost feasibility, we provide a comprehensive sample service system:
1. Technical parameter customization consultation: Professional engineers provide one-on-one communication and recommend optimal solutions based on working condition requirements.
2. 3D drawing collaborative design verification: Support drawing review and optimization suggestions to avoid design risks in advance.
3. Free sample provision: Eligible customers can apply for samples for actual installation testing.
4. Cost optimization solutions: Provide material and process optimization suggestions combined with mass production demand to reduce overall procurement costs.
Transparent production management is implemented for batch orders to ensure on-time delivery and stable quality:
1. Full-process CNC machining quality traceability: Each process record is traceable, and quality problems can be located and traced.
2. 48-hour production progress visual feedback: Order progress is synchronized in real time, and customers can grasp production status at any time.
3. ISO system standard quality inspection: Strictly implement three inspection stages - incoming, in-process and finished product - according to ISO9001 quality system.
4. VMI inventory management support: Long-term cooperative customers can enjoy consignment inventory service to reduce inventory pressure.
5. Emergency order response: With rapid production scheduling capability to meet customer emergency replenishment needs.
We are committed to providing customers with full lifecycle technical support and after-sales service:
1. 24-month extended warranty period: Warranty commitment far exceeding industry standards, making procurement worry-free.
2. 48-hour global problem response: Quick response after receiving feedback, providing on-site or remote diagnostic support.
3. Free process upgrade solutions: Continuously optimize product processes, and existing customers can enjoy free iterative upgrades.
4. Equipment wear database early warning: Establish customer equipment operation files, provide early warning maintenance cycles, and reduce unexpected downtime risks.
With stable transmission performance brought by double-point clamping force, the Double Keyed Slot Motor Shaft is widely used in various heavy-duty industrial equipment and precision transmission scenarios, serving as a core basic component for mid-to-high-end equipment manufacturing.
In the heavy machinery field, the double keyed slot motor shaft serves as the core connecting component between large motors and reducers or transmission mechanisms, undertaking the critical role of high torque transmission. Its excellent impact and eccentric load resistance can easily cope with harsh conditions of frequent forward and reverse rotation, ensuring continuous and stable operation of heavy equipment such as metallurgical equipment, hoisting machinery and conveying equipment, and reducing unplanned downtime losses caused by shaft system failures.
In precision automated production scenarios, this product is suitable for equipment with high requirements for transmission accuracy and operational stability, such as high-precision CNC machines, large packaging equipment and automated assembly lines. By precisely controlling transmission clearance, it effectively reduces equipment vibration and noise, significantly improving the processing accuracy and production efficiency of production lines. It is the preferred transmission solution for upgrading high-end automated equipment.
High-load outdoor scenarios such as mining machinery and oil drilling equipment impose strict requirements on the reliability and durability of transmission shafts. With outstanding eccentric load and impact resistance, the product can stably transmit power under complex working conditions such as dust, vibration and heavy loads, supporting long-term reliable equipment operation and reducing maintenance frequency and spare part replacement costs in remote operating environments.
Relying on Guanshuo Precision's position as a core supplier in the new energy vehicle and home appliance industries, this series of shaft products is also suitable for applications with volume and efficiency requirements, such as new energy drive motors and large home appliance motors. Through precision machining and lightweight design, it helps improve equipment energy efficiency and quality upgrade.
A: Double keyway features symmetrical double-point force bearing, more uniform torque transmission, higher load capacity, better impact resistance and smoother operation. Recommended for high torque, frequent forward/reverse rotation, and equipment with high stability and noise requirements.
A: Full-parameter customization based on drawings is supported. Sample MOQ is flexible; mass production MOQ depends on specification complexity. Please contact sales for a specific quotation.
A: Made of high-quality carbon steel or alloy steel, with quenching and tempering heat treatment. The company is ISO9001 certified, with three inspection stages (incoming, in-process, finished) and full traceability.
A: For mass production, lead time is 15--25 working days depending on quantity and complexity. For samples, lead times vary: 1--3 days for stock standard samples, 7--12 days for custom machined samples, and 12--18 days for items requiring heat treatment or special surface finish. Expedited service is available for urgent orders. Yes, we provide samples for testing -- stock standard samples are free (shipping cost borne by buyer), and custom samples are charged at machining cost (fully refunded upon first bulk order meeting MOQ). Annual clients with purchases over USD 30,000 receive up to 3 free custom samples per new model each year.
A: Located in Ningbo, Zhejiang, founded in 2016. We are a national high-tech enterprise, ISO9001 certified, with 11 utility model patents.
As a professional manufacturer deeply engaged in precision shaft manufacturing for more than ten years, Guanshuo Precision has always been driven by technological innovation and based on stable quality, committed to providing customers worldwide with accurate and durable customized shaft solutions. Our double keyed slot motor shaft products demonstrate excellent performance in heavy-load transmission, precision transmission and other application scenarios thanks to the symmetrical parallel structure design, high-quality material heat treatment process and CNC precision machining standards. Combined with comprehensive sample support, mass production management and 24-month extended warranty after-sales service, we are a trustworthy long-term partner for industrial customers. For detailed price lists, technical selection advice or custom quotations, please feel free to contact our professional team.
Address
Qingqing Road 268-1, Jiaochuan Sub-district, Zhenhai District, Ningbo City, Zhejiang Province, China
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