Custom Gears Manufacturer – Made to Drawing & OEM Solutions

Transform your technical drawings into precision-engineered gears. From prototype validation to full-scale production, we deliver custom gear solutions with complete transparency—backed by certified inspection reports, flexible material options, and proven heat treatment processes.

From Prototype to Mass Production

Seamless transition from sample validation to volume manufacturing with consistent quality at every scale

Material & Heat Treatment Options

20CrMnTi, 42CrMo, 8620H, and more—with carburizing & quenching, nitriding, and induction hardening capabilities

Inspection Reports Available

Material certification, hardness verification, and dimensional reports provided with every order.

We not only calibrate all measuring tools, test equipment, and tooling in-house with trained staff, but also certificate of calibration (CoC) issued by an accredited third-party lab.All work follows regulatory standards and customer requirements.

View Capabilities

Lead Time: Prototypes 4-6 weeks | Production 3-5 weeks • MOQ: Prototype accepted | Small batch orders welcome

Custom Gear Solutions We Manufacture

Our engineering and production capabilities span the full spectrum of gear types and manufacturing processes. Whether you need a single prototype bevel gear or high-volume helical gear production, we deliver precision components matched to your exact specifications.

Straight Bevel Gears

Precision straight bevel gears for right-angle transmission in gearboxes and reducers. Custom or OEM, CNC cut and ground, heat-treated, and inspected to ISO/AGMA for durable, quiet, reliable performance.

Spiral Bevel Gears

High-accuracy spiral bevel gears for smooth torque transfer and low vibration. We make matched sets and custom ratios with CNC cutting, grinding, lapping, and full inspection, tight tolerances.

Hypoid Bevel Gears

Custom hypoid gears and ring-and-pinion sets for differentials and high-offset drives. Optimized tooth geometry, controlled case hardening, and contact pattern verification deliver higher load capacity and lower noise.

Zerol Bevel Gears

Zerol bevel gear sets for compact right-angle stages needing smoother meshing than straight bevel. Precision cutting, optional lapping, and pattern testing ensure stable contact, efficient transfer, long life.

Spur Gears

spur gears for transmission in industrial equipment. Custom modules, OEM replacements, and runout control. Optional carburizing, nitriding, or induction hardening for strength and wear resistance.

Helical Gears

Custom helical gears for quieter operation and load sharing in gear trains. CNC hobbing and grinding, profile/lead correction, and controlled hardness support smooth meshing, long life, stable delivery.

Worm Gears

Worm gears and worm wheels for high reduction ratios and compact drives. Precision machining, material control, and surface hardening improve efficiency, reduce wear, and extend gearbox service life.

Gear Shaft

Custom gear shafts, pinion shafts, and splined shafts for transmissions and drive units. Integrated turning, hobbing, grinding, and CMM inspection ensure accurate concentricity, reliable fit, repeatability every time.

What We Need for Your Custom Gear Quote

Clear technical documentation ensures accurate quoting and eliminates costly revisions. The more detail you provide upfront, the faster we can validate manufacturability and deliver a comprehensive quotation with lead time and cost breakdown.

Drawing Format	PDF & DWG required \| STEP or IGES 3D files preferred for complex geometries
Gear Parameters	Module/Diametral Pitch, number of teeth, pressure angle (14.5°/20°/25°), helix angle, hand of helix, base tangent length or measurement over pins (MOP) accuracy grade (ISO 1328 / AGMA 2000 / DIN 3961)
Material Specification	Material grade (20CrMnTi, 42CrMo, 8620H, SCM420, etc.) \| Acceptable alternatives if applicable
Heat Treatment	carburizing & quenching, high-frequency induction hardening, nitriding, quenched and tempered (Q&T)
Surface Treatment	Black oxide, electroplating, or no surface treatment required
Quantity	Prototype quantity and annual volume projection

Manufacturing Feasibility Analysis (DFM):

Our engineering team reviews all drawings for manufacturability and can suggest modifications to improve quality, reduce cost, or shorten lead time—at no additional charge.

Process-Driven Manufacturing Capabilities

Our vertically integrated manufacturing process ensures complete control over quality at every stage. From raw material inspection through final packaging, we maintain rigorous process discipline and documentation to deliver consistent, high-precision gears.

Gear Forging

Forged gear blanks for high-load gears—custom size, fast lead time. Precision gear forging for durable gears; cost-effective and scalable.

Gear Cutting

CNC hobbing, shaping, and milling for tooth generation. Module range 0.5-12, OD up to 800mm, face width to 300mm.

Heat Treatment

Carburizing furnaces (gas/vacuum), nitriding, induction hardening.

Precision Grinding

CNC gear grinding for ISO 1328 Class 5-6 accuracy.

Quality Inspection

CMM measurement, gear testers (profile/lead/pitch), hardness testing, metallographic analysis. Full dimensional and material reports.

Packaging & Shipping

Anti-rust treatment, individual wrapping, custom packaging for fragile components. Export documentation and logistics coordination.

Manufacturing Range & Capabilities

Dimensional Capacity

Outside Diameter: 5mm – 800mm
Module Range: 0.5 – 12
Maximum Face Width: 100mm
Precision Grade: ISO 1328 Class 5-8
Maximum Helix Angle: 45°

Documentation Provided

Material Certificates (Mill Test Reports)
Hardness Test Reports (surface & core)
Gear Inspection Reports (CMM & gear tester data)
First Article Inspection (FAI) / PPAP available
Metallographic Analysis (upon request)

Quality Control & Inspection Protocol

Quality is embedded in every step of our manufacturing process, not just inspected at the end. Our three-stage inspection protocol—combined with advanced metrology equipment—ensure every gear meets customer requirements.

1

Incoming Material Inspection

Raw material verification against mill certificates. Chemical composition analysis and hardness testing to confirm material compliance before machining begins.

2

In-Process Quality Checks

Statistical process control (SPC) at critical operations. First-piece inspection, periodic sampling during production runs, and real-time adjustments to maintain medium tolerance.

3

Final Inspection & Testing

100% dimensional inspection of critical features. CMM measurement, gear testing (profile, lead, pitch), hardness verification, and visual inspection before warehousing.

Key Inspection Parameters:

Tooth Geometry

Profile deviation (ffa)
Lead deviation (fHβ)
Pitch variation (fp)
Runout tolerance (Fr)

Material Properties

Surface hardness (HRC)
Core hardness
Effective case depth
Microstructure verification

Dimensional Accuracy

OD, ID, face width
Center distance
Surface roughness (Ra)
Concentricity & perpendicularity

Inspection Report Samples: We provide anonymized sample inspection reports upon request so you can review our testing methodology and documentation standards before placing an order.

Your Custom Gear Project: From Inquiry to Delivery

A streamlined, transparent process eliminates surprises and keeps your project on schedule. We’ve refined this six-step workflow over hundreds of custom gear projects to balance speed, quality, and cost-effectiveness.

Confidentiality Agreement (Optional)

For proprietary designs, we’ll execute an NDA before you share technical drawings. Your intellectual property is protected throughout the entire process.

Drawing Review & DFM Analysis

Our engineering team evaluates manufacturability, identifies potential issues, and suggests cost-saving or quality-improving modifications—typically within 24-48 hours of receiving drawings.

Quotation & Lead Time Confirmation

Detailed quote including unit price, tooling costs (if any), lead time breakdown, and payment terms. We clarify any assumptions or requirements to prevent scope creep.

Prototype Production & Inspection

Prototype gears manufactured per your specifications with full dimensional and material inspection. Complete inspection report accompanies prototype samples for your validation.

Customer Approval & Feedback

Review prototype samples and inspection data. If modifications are needed, we incorporate feedback and produce revised samples until you’re satisfied with the result.

Mass Production & Shipping

Once approved, we scale to production volumes with the same quality standards. Batch inspection, anti-rust treatment, secure packaging, and logistics coordination to your destination.

Communication at Every Stage: You’ll receive progress updates at key milestones, and our engineering team is available to answer questions throughout the project lifecycle.

Proven Solutions Across Industries

Real-world applications demonstrate our ability to solve complex gear challenges. These anonymized case studies illustrate how our engineering expertise and manufacturing capabilities deliver measurable improvements in performance, reliability, and cost-efficiency.

Electric Outboard Gear

Challenge: Customer required ultra-quiet helical pinion for electric vehicle reduction gearbox. Noise targets below 65 dB under load with extended service life expectations.
Solution: 20CrMnTi with optimized carburizing profile (0.8-1.2mm case depth), profile-ground to ISO 1328 Class 5. Optimizing the gear tooth micro-geometry reduced mesh noise while maintaining strength.
Result: Noise was reduced by approximately 8 dB compared with the baseline design under the same operating conditions. The customer met the <65 dB target under load, and kept the expected service life and stable output.

Assembly of the components of a three-speed internal gear hub

Agricultural Gearbox Bevel Set

Challenge: Spiral bevel gear set for heavy-duty agricultural equipment experiencing premature wear and pitting failure. Original supplier unable to meet durability requirements.

Solution: Upgraded to 42CrMo with high-frequency induction hardening and shot peening for wear and pitting resistance. Contact pattern, optimized through lapping to improve load distribution and reduce stress.

Result: Field service life extended by approximately 40–60% with fewer pitting failures in use. Follow-on orders expanded to additional products, and the customer validated performance before scaling to full production.

Explosion diagram of gear pump gear components

Industrial Hydraulic Pump Gear Set

Challenge: OEM needed an external gear pump gear set (drive gear + idler gear) for a compact hydraulic power unit. Key targets were stable flow, low internal leakage, and lower mesh noise.

Solution: Multi-step manufacturing: gear cutting, deburring, controlled carburizing & quenching, then finish grinding on bores/faces. Micro-geometry and backlash were tuned to improve sealing and reduce noise.

Result: Before mass production, the pump’s performance was stable. Under the customer’s test conditions, the noise was reduced, the volumetric efficiency was improved, and full-scale production was smoothly carried out.

Common Questions About Custom Gear Manufacturing

Get answers to the most common questions we receive from engineering and procurement teams. Can’t find what you’re looking for? Contact us directly for project-specific guidance.

What is your minimum order quantity (MOQ)?

We accept prototype orders with no minimum quantity. For production runs, MOQ depends on complexity—typically 50-100 pieces for standard gears, but we’re flexible for specialized applications. Small batch orders are welcome as we understand the need for testing and validation before committing to larger volumes.

What are typical lead times for samples and mass production?

Prototype samples: 4-6 weeks after drawing approval. Mass production: 3-5 weeks depending on quantity and complexity. Rush service available for urgent projects. Lead times include manufacturing, heat treatment, inspection, and preparation of documentation. We provide detailed production schedules with milestone dates upon order confirmation.

Which gear standards do you support?

We manufacture to ISO 1328, DIN 3961, AGMA 2000, JIS B 1702, and customer-specific standards. Our inspection equipment is calibrated to measure according to these standards, and our quality documentation references the applicable standard for your project. We can also work with proprietary company standards if you provide detailed specifications.

Can you help optimize our gear design for manufacturing?

Yes, Design for Manufacturing (DFM) analysis is included at no charge. Our engineering team reviews drawings for manufacturability and can suggest modifications to improve quality, reduce cost, or simplify production.

What inspection reports and documentation can you provide?

Standard documentation includes: dimensional inspection reports (CMM data for critical features), gear inspection reports (profile, lead, pitch measurements), hardness test results (surface and core), and material certificates. Optional documentation available: First Article Inspection (FAI) reports, PPAP packages, metallographic analysis, contact pattern verification for bevel gears, and noise testing data.

What heat treatment options are available?

Carburizing (gas or vacuum), nitriding (gas or plasma), induction hardening, and through-hardening. We can control case depth, core hardness, and surface hardness to your specifications.

How do you handle shipping and packaging?

All gears receive anti-rust treatment (oil coating or VCI wrapping). Individual wrapping or compartmentalized packaging prevents damage during transit. We coordinate international shipping, handle export documentation, and can work with your preferred freight forwarder. For high-value or fragile components, we use custom wooden crates or foam inserts for maximum protection.

Do you offer testing services beyond dimensional inspection?

Yes. We can coordinate, through our partner laboratory, contact pattern verification for bevel and quasi-hypoid gears, as well as metallographic analysis to confirm surface-hardened case depth and microstructure. These services help validate gear performance prior to full-scale production.

What about intellectual property protection?

We sign NDAs as standard practice for proprietary designs. Your drawings and specifications are stored securely with access limited to project team members. We do not reverse-engineer customer products or share technical information with competitors. Many customers have worked with us for years across multiple confidential projects.

Materials & Heat Treatment Expertise

Material selection and heat treatment directly impact gear performance, durability, and cost. Our metallurgical expertise helps you choose the optimal combination for your application requirements—balancing strength, wear resistance, and manufacturability.

Common Gear Materials

20CrMnTi: Carburizing steel for high surface hardness with tough core. Excellent for high-load applications requiring wear resistance.

42CrMo / 4140: Through-hardening alloy steel. Good strength and toughness for medium to heavy-duty applications.

8620H / SCM420: Carburizing grade with superior core strength. Ideal for shock loads and fatigue resistance.

40Cr / 5140: Medium carbon alloy steel for induction hardening. Cost-effective for selective hardening applications.

S45C / 1045: Medium carbon steel for lower-stress applications. Can be induction hardened or quenched and tempered.

Heat Treatment Processes

Gas Carburizing: Traditional carburizing for general applications. Case depth 0.5-2.0mm, surface hardness 58-62 HRC achievable.

Vacuum Carburizing: Cleaner process with minimal distortion and oxidation. Preferred for precision gears requiring minimal grinding stock.

Nitriding: Lower temperature process creates hard, wear-resistant surface. Minimal distortion makes it ideal for pre-ground gears.

Induction Hardening: Selective hardening of tooth surfaces while maintaining softer core. Fast, cost-effective for certain geometries.

Material Selection Assistance:

Not sure which material or heat treatment to specify? Our engineering team can recommend options based on your load requirements, operating environment, cost targets, and production volumes. We consider factors like contact stress, bending stress, operating temperature, and desired service life to optimize your material selection.

Ready to Start Your Custom Gear Project?

Partner with a manufacturer that combines technical expertise, quality craftsmanship, and responsive service. Whether you need a single prototype or ongoing production support, we’re equipped to deliver precision gears that meet your exact specifications.

17+ Years of Experience

Manufacturing custom gears for OEM and aftermarket applications

800+ Projects Completed

Successful custom gear projects across diverse industries

98% On-Time Delivery

Meeting committed lead times and quality standards consistently

Get Started Today

Send your technical drawings and specifications to receive a detailed quotation with lead time estimate. Our engineering team will review your requirements and respond within 24-48 hours with any questions or recommendations.

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