Custom cycloid gear supplier, cycloid drive parts manufacturer, CNC machining cycloid disc, non-standard cycloidal reducer parts, OEM cycloid gear machining
High-Precision Custom Cycloid Discs & Cycloidal Reducer Components
Cycloidal reducers (cycloidal drives) are critical transmission elements widely used in industrial robotics, CNC machine tools, medical equipment, and precision automation systems due to their high reduction ratios, zero backlash, extreme rigidity, and shock resistance. At the heart of this system is the cycloid disc (cycloid gear)—a complex, ultra-precision, non-standard component whose tooth profile accuracy directly determines the reducer’s torque density, noise levels, and operational lifespan.
As a specialized custom CNC machining service provider, we leverage advanced multi-axis machining and strict quality control to deliver high-precision, non-standard cycloid discs and full-set cycloidal reducer components tailored to your exact drawings and specifications.
Key Components We Manufacture
We offer both single-piece prototyping and high-volume production for non-standard cycloidal reducer parts, focusing heavily on complex, high-wear elements:
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Cycloid Discs (Cycloidal Gears): Single, dual, or multi-eccentric cycloid discs featuring ultra-precise short-width epitrochoid tooth profiles.
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Eccentric Shafts & Sleeves: Engineered for maximum concentricity, dynamic balance, and strict eccentric displacement tolerances.
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Pin Housing & Pin Teeth/Bushes: High-wear resistance pins and outer housings manufactured for exact meshing alignment.
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Output Shafts & Pin Shafts: Heavy-duty output drive components designed to resist severe shear stress and rotational fatigue.
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Planet Carriers, Housings & End Covers: Rigid structural parts processed to maintain tight assembly tolerances.
Materials & Thermal Treatments
Cycloid discs endure high-frequency contact stress and cyclic loads. We process a wide range of engineering materials with matched heat treatment options:
| Material Category | Specific Grades | Characteristics & Applications for Cycloid Discs |
| Alloy Structural Steel | 20CrMnTi, 42CrMo, 20CrNiMo, 18CrNiMo7-6 | Primary Choice: Vacuum carburized and quenched. High surface hardness (HRC 58–62) with a flexible, shock-resistant core. |
| Bearing Steel | GCr15 / 100Cr6 / AISI 52100 | Ultra-Precision Discs & Pins: Exceptional wear resistance, uniform hardness, and structural dimension stability after quenching. |
| Stainless Steel | 17-4PH (SUS630), 440C, 316L | Special Environments: Ideal for medical devices, food equipment, and cleanroom reducers requiring corrosion resistance. |
| Lightweight / Plastics | Aluminum 7075-T6, PEEK, POM (Acetal) | Light-Duty / Low-Noise Discs: Suitable for drone actuators, collaborative robot joints, and dry-lubricated instruments. |
Manufacturing Process & Precision Capabilities
Overcoming cycloid disc production challenges—complex profiles, hard-to-machine quenched steel, and heat-treatment distortion—we utilize a strict end-to-end process chain:
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5-Axis CNC Milling & Turn-Mill Machining: Multi-axis centers machine the cycloid profile, eccentric holes, and pin bores in a single clamping setup to eliminate cumulative positioning errors.
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Heat Treatment & Deformation Control: Vacuum carburizing, quenching, or cryogenic treatments are monitored using custom restraining fixtures to keep thermal warping to a minimum.
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Post-Quench Slow-Wire EDM: Precision wire cutting processes internal splines, eccentric bores, and pin holes after hardening, achieving tolerances down to $\pm0.003\text{ mm}$.
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CNC Cycloidal Profile Grinding: Hardened cycloid tooth surfaces undergo ultra-precision grinding to eliminate micro-distortions, achieving a surface roughness of $\text{Ra }0.4\text{ }\mu\text{m}$ for smooth, silent meshing.
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Surface Enhancement Coatings: Optional QPQ nitriding, DLC (Diamond-Like Carbon), or TD coatings to reduce friction coefficients and extend wear life.
Quality Assurance & CMM Inspection
Every cycloid disc undergoes rigorous inspection to guarantee zero-backlash meshing and high torque output:
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CMM (Coordinate Measuring Machine): Precise measurement of eccentric hole distances, pin hole position tolerances, and face parallelism.
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Profile Scanners: Full contour scanning of epitrochoid tooth profiles to verify against original 3D CAD models.
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Hardness & Roughness Testing: Batch verification of surface hardness, effective case depth, and tooth surface finish.
Looking for a reliable manufacturing partner for your next cycloidal reducer project? Send your 3D CAD files (STEP/IGES) or 2D detail drawings to our engineering team today for a comprehensive DFM evaluation and an accurate quote.
