CNC Metal Gears

Off-the-shelf gears often fail to meet the requirements of non-standard equipment. We CNC-machine metal gears from your drawings, including custom modules, bore sizes, and tooth profiles, with critical features machined to tolerances as tight as ±0.025mm. Each order begins with prototype verification to confirm fit, alignment, and performance before moving into repeat production.

What Can We Customize in CNC Metal Gears?

Different applications require different gear geometries, materials, and surface finishes. We work from your drawings or performance requirements to customize each gear specification based on factors such as load, speed, operating environment, and assembly requirements. Below is an overview of the key parameters we customize, helping you define the right gear for your equipment.

Types

We CNC-machine various gear types based on your transmission requirements, including spur gears, helical gears, bevel gears, worm gears, internal gears, rack and pinion sets, and planetary gear components. Spur gears are suitable for efficient power transmission between parallel shafts, while helical gears provide smoother and quieter operation under higher loads. Bevel gears transfer motion between intersecting shafts, typically at 90-degree angles, and worm gears are used for compact right-angle drives with high reduction ratios. Each gear is customized to your required module, pressure angle, tooth count, and other design specifications.

Sizes

We machine custom gears in a wide range of sizes, from miniature components under 10mm in diameter to larger industrial gears exceeding 500mm, depending on your application requirements. Key dimensions, including module (or diametral pitch), outside diameter, bore diameter, face width, and hub dimensions, are customized to your specifications. Critical features can be machined to tolerances as tight as ±0.025mm based on gear type, material, and application needs. Whether you need compact gears for precision instruments or heavy-duty gears for industrial equipment, we adjust our machining processes and inspection methods to meet your requirements.

Materials

Gear performance depends heavily on material selection. We offer various metal options to match your requirements for load capacity, wear resistance, corrosion resistance, and operating environment. Carbon and alloy steels, including 4140 and 20CrMnTi, provide high strength and are commonly used for applications requiring heat treatment or case hardening. Stainless steels such as 304, 316, and 17-4PH offer excellent corrosion resistance for food, medical, and marine environments. Aluminum alloys like 6061 and 7075 provide lightweight solutions where reduced inertia is important. Brass and bronze are suitable for low-friction and low-noise applications, while titanium is available for specialized applications requiring a high strength-to-weight ratio.

Post-Processing

Post-processing options are available to improve gear performance, including wear resistance, surface hardness, corrosion protection, and dimensional stability. Heat treatments such as carburizing, nitriding, and hardening can increase tooth surface strength for high-load applications. Surface finishes such as anodizing, black oxide coating, and polishing help improve corrosion resistance, reduce friction, or meet specific appearance requirements. For demanding applications, we can also support additional finishing processes to achieve the required performance and service life.

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Custom CNC metal Parts Solutions

Need more than CNC Metal Gears? Browse our range of custom CNC Metal parts to find components that match your design requirements.

Why Choose Zhongde?

Producing precision gears requires more than general CNC capability—it requires accurate control of tooth geometry, material behavior, and critical dimensions. Our facility operates 100+ 3-, 4-, and 5-axis machining centers, enabling us to produce complex gear profiles, angled helical geometries, and intersecting bevel gear components while minimizing setup changes and alignment errors.

Critical gear parameters, including module, pitch diameter, and tooth thickness, can be controlled to tolerances as tight as ±0.025mm and verified with CMM inspection before shipment. Our 12 in-house engineers review your drawings for manufacturability, identifying potential fit, alignment, or performance issues before machining begins.

Since 1978, we have supported 20,000+ custom projects involving steel, stainless steel, aluminum, and brass components, serving customers in 100+ countries. With low-volume capability starting from one piece, we provide the same engineering attention for prototype gears and repeat production runs.

Industries We Served

Zhongde has delivered custom TPE parts to numerous industries, helping clients achieve high-quality, precise, and reliable solutions across a variety of applications.

Material Handling Custom Moulding

Medical Equipment Custom Molding

Mine Metallurgy Custom Molding

Marine Custom Molding

Agricultural Machinery Custom Molding

Consumer Electronics Custom Molding

Chemical Equipment Custom Molding

Transmission Device Custom Molding

Communication Custom Molding

Home Appliances Custom Moulding

Automotive Custom Moulding

FAQs of CNC Metal Gears

View our FAQ center for more questions.

What gear tooth profile standards do you follow?

We can produce gears based on AGMA, DIN, ISO, and other industry specifications. Standard involute tooth profiles are available, and custom or proprietary tooth forms can also be machined according to your drawings.

Do you offer gear hobbing, shaping, or grinding for tooth finishing?

We select suitable machining and finishing methods based on the gear type, material, and accuracy requirements. For applications requiring improved surface finish or tighter tolerances, additional finishing processes such as grinding can be arranged.

Can you produce gears with a bore, keyway, or spline to fit my shaft?

Yes. We customize bore dimensions, keyways, splines, and hub features according to your shaft interface requirements, ensuring proper fit and alignment during assembly.

Zhongde's Manufacturing Capabilities for Custom Parts

We offer various manufacturing methods to turn your custom parts designs into real components, from prototypes to full production, matching the right process to your needs.

Injection Molding

We produce high-precision CNC plastic parts at scale, turning your designs from prototype to full production efficiently.

CNC Machining

We create custom CNC plastic or metal parts with exact dimensions and fine details using CNC machining.

Compression Molding

We shape durable thermoset or CNC plastic parts under heat and pressure for reliable performance.

Cast Molding

We form intricate, low-volume parts with smooth surfaces and consistent material distribution.

3D Printing

We quickly turn CAD designs into physical prototypes or complex parts with 3D printing.