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CNC Drive Shafts Technical Specifications
| Component Types | Splined Shafts, Drive Couplings, Spur/Helical Gears, Synchronous Pulleys |
|---|---|
| Primary Equipment | Star CNC Swiss-type Lathes, 4-axis CNC Machining Centers, Gear Grinders |
| Dimensional Tolerance | Spline/Gear Pitch Diameter: ±0.005mm; General Diameters: ±0.01mm |
| Geometric Tolerances | Concentricity: 0.005mm; Perpendicularity: 0.01mm; Runout: 0.005mm |
| Common Materials | 42CrMo, 20CrMnTi, 17-4PH, SUS304, Hardened Alloy Steel |
| Heat Treatment | Carburizing, Quenching & Tempering, Induction Hardening (HRC 55-62) |
| Surface Roughness (Ra) | Ground Gear/Spline Teeth: Ra 0.4 - Ra 0.8; Turned Surfaces: Ra 1.6 |
| Machining Features | Involute Splines, Keyways, Grease Cross-Holes, Threaded Drive Ends |
| Surface Treatments & Cleaning | Nitriding, Hard Chrome Plating, Black Oxide, Ultrasonic Cleaning |
| Inspection Equipment | Japanese/German CMM, Gear Measurement Centers, Hardness Testers |
High-Precision CNC Drive Shafts for Optimal Torque and Motion Transmission
At Xierge Precision Machinery Co., Ltd., we leverage over 30 years of operational experience since 1990 to manufacture premium CNC Drive Shafts for the global automotive, industrial machinery, and medical equipment sectors. Drive components—such as splined shafts, drive couplings, spur gears, and synchronous pulleys—are the core mechanical elements responsible for transmitting rotary power and torque. These demanding applications require the components to possess extreme tensile strength, flawless gear tooth profiles, and strict concentricity. In high-speed or heavy-load continuous operations, even a microscopic deviation in the spline pitch or a slight material defect can lead to excessive vibration, accelerated wear, and catastrophic system failure.
To achieve flawless results, our state-of-the-art facility is equipped with Japanese imported Star CNC Swiss-type lathes, advanced 4-axis CNC machining centers, and precision gear hobbing and grinding machines. This specialized equipment allows us to machine complex spline profiles, mill precision gear teeth, and drill cross-lubrication holes in highly rigid, single continuous setups. The guide bushing support on our Swiss lathes eliminates deflection, ensuring absolute coaxiality between the drive journals and the power transmission elements.
Following our core principle of "Integrity Oriented, Quality Foremost," we strictly adopt premium raw materials, such as 42CrMo, 20CrMnTi, and 17-4PH stainless steel, to ensure maximum structural integrity and impact resistance. To guarantee reliable product performance, we apply strict quality inspection protocols utilizing a complete set of testing instruments imported directly from Japan and Germany. We keep innovating to maintain sound business development and warmly welcome domestic and overseas clients to visit our factory and explore custom OEM/ODM cooperation opportunities.
Core Advantages of Xierge CNC Drive Shafts
- Precision Gear & Spline Profiling: Utilizing advanced 4-axis CNC machining centers and gear grinding equipment, we machine exact involute spline profiles and gear teeth, ensuring seamless torque transmission with zero backlash.
- Extreme Fatigue and Torsional Strength: We strictly select 42CrMo and 20CrMnTi alloy steels, applying precise carburizing and induction hardening to achieve a hard, wear-resistant surface while maintaining a tough, shock-absorbing core.
- Single-Setup Coaxiality Control: By turning the drive journals, hobbing the splines, and drilling lubrication holes in highly rigid Swiss-type setups, we eliminate secondary clamping errors, ensuring strict concentricity for smooth high-speed rotation.
- High-Speed Dynamic Balance: For synchronous pulleys and drive couplings, our precision turning and grinding processes ensure perfect mass symmetry, minimizing vibration and noise in high-RPM automotive and industrial applications.
- Burr-Free Lubrication Pathways: To prevent internal debris from scoring mating components, we utilize specialized gun drilling and back-chamfering techniques, followed by thermal energy deburring and rigorous ultrasonic cleaning.
- Advanced Anti-Wear Coatings: We coordinate nitriding or hard chrome plating to create a highly durable, low-friction surface layer, significantly extending the operational lifespan of drive components in abrasive environments.
- 3-Decade OEM/ODM Innovation: Since 1990, we have continuously innovated, collaborating closely with clients to optimize DFM (Design for Manufacturing) for custom drive assemblies, scaling seamlessly from prototyping to mass production.
Payment Methods & Global Logistics Solutions
Secure International Payment Terms:
To facilitate smooth B2B international trade, we offer flexible and secure payment options. For mass production orders of CNC Drive Shafts, we accept standard T/T (Telegraphic Transfer) with a 30% advance deposit and 70% balance before shipment. For large-scale automotive or industrial machinery supply contracts, we are fully capable of processing Irrevocable Letters of Credit (L/C) at sight. For initial prototyping, sample orders, or custom tooling fees, PayPal and Western Union are also available to expedite the process.
Global Logistics & Protective Packaging:
We provide comprehensive end-to-end shipping solutions under FOB, CIF, and DAP Incoterms. For urgent prototypes or small batches, we utilize expedited international couriers such as DHL, FedEx, and UPS. For bulk mass production, we offer highly competitive sea freight (LCL/FCL) and air cargo rates through our trusted global forwarder network. Recognizing that drive components feature precision-machined gear teeth, splines, and ground journals highly susceptible to impact chipping, friction damage, and oxidation, we utilize specialized protective packaging: all critical mating surfaces are coated in heavy anti-rust oil and wrapped in VCI (Volatile Corrosion Inhibitor) paper. To prevent point contact and tooth deformation, components are partitioned in custom rigid blister trays or multi-layer EPE foam slots, packed in sturdy export-grade cartons or heat-treated wooden cases to ensure zero damage during international transit.
FAQ
Machining splines on slender shafts requires extreme rigidity. We utilize Japanese Star CNC Swiss-type lathes with synchronized live tooling to hob the splines directly on the machine while the part is supported by the guide bushing. Post-induction hardening, we utilize precision CNC spline grinding to correct any micro-warping and achieve exact pitch diameter and tooth profile tolerances, guaranteeing zero runout.
Yes. For high-RPM drive pulleys, mass asymmetry causes severe vibration. We ensure dynamic balance through precision single-setup machining—turning the outer profile, boring the inner hub, and milling the tooth profile symmetrically. For critical applications, we can coordinate dynamic balancing services and machine specific material removal slots to achieve the required G-grade balance.
Standard calipers cannot accurately assess gear geometries. We utilize imported Japanese and German Coordinate Measuring Machines (CMM) and specialized gear measurement centers. These machines trace the involute curve and helix of the tooth, mapping the exact pitch, runout, and profile deviation to ensure smooth, backlash-free mating with the driven gear.
Internal burrs can break off and destroy bearings or mating gears. We use specialized carbide gun drills with optimized pecking cycles directly on the CNC lathes. This is immediately followed by precision back-chamfering tools. For absolute assurance, we employ thermal energy deburring (TEM) to vaporize any remaining micro-burrs at the molecular level, followed by rigorous ultrasonic cleaning.
For automotive applications subjected to high torsional shock, we highly recommend 20CrMnTi or 42CrMo alloy steel. We apply carburizing and quenching, which creates an extremely hard, wear-resistant outer case (HRC 55-62) on the splines and journals while maintaining a ductile, fracture-resistant core. This prevents tooth shear failure under sudden heavy throttle loads.
Yes. With over 30 years of OEM/ODM expertise, we routinely collaborate with clients to develop complex drive components. We can machine precision internal cavities and locating slots for elastomer dampening inserts. We optimize the DFM (Design for Manufacturing) process to ensure the metal hub maintains strict concentricity while securely retaining the non-metallic dampening elements.
