Custom Gear Manufacturer in Taiwan | Precision Gears & Transmission Components

CHANG YI GEAR (CYG) is a custom gear manufacturer in Taichung, Taiwan, providing precision gears and transmission components for industrial machinery, automation equipment, OEM projects, replacement parts, and custom mechanical applications.

Our manufacturing capabilities cover spur gears, helical gears, precision ground gears, gear shafts, timing pulleys, sprockets, and other custom transmission components.

From prototype and small-batch production to volume manufacturing, CYG supports customers based on drawings, technical specifications, and actual application requirements.

Custom Spur & Helical Gear Manufacturing

CYG manufactures custom spur gears and helical gears according to customer drawings and specifications.

Our gear manufacturing range includes:

• Module: M0.5–M8
• Diametral Pitch: DP72–DP4
• Precision hobbing: JIS 3–JIS 6
• Gear grinding: JIS 3–JIS 0
• Custom dimensions and tooth configurations
• Prototype, small-batch, and production quantities

For applications requiring higher gear accuracy and surface quality, precision gear grinding can be included after heat treatment according to the required manufacturing process.

Precision Ground Gears

For customers requiring improved gear accuracy, tooth profile, lead, and surface quality, CYG provides precision gear grinding services.

Our ground gear capability includes:

• Gear accuracy up to JIS 0
• Ground gear surface roughness down to Ra ≤ 0.4 μm
• Spur and helical gear grinding
• Gear inspection based on agreed technical requirements

Precision ground gears are suitable for applications where stable meshing, controlled accuracy, and reliable transmission performance are important.

Heat Treatment Options for Custom Gears

Different gear applications require different material and heat-treatment combinations.

Depending on the drawing and technical requirements, CYG can support:

• Induction hardening
• Carburizing
• Vacuum heat treatment
• Nitriding

The appropriate process is evaluated according to the material, gear design, required hardness, dimensional requirements, and application conditions.

Surface Finishing Options

CYG also supports a range of surface finishing processes for gears and transmission components, including:

• Black oxide
• Anodizing
• Hard anodizing
• Electroless nickel plating
• Zinc plating
• Phosphate coating
• Nitriding

Surface treatment selection depends on the material, corrosion resistance, appearance, wear requirements, and customer specifications.

Gear Inspection & Quality Verification

For OEM buyers evaluating a new gear supplier, manufacturing capability alone is not enough. Product quality should be supported by actual inspection data.

CYG performs gear inspection using a LIEBHERR 280 gear inspection machine.

Depending on product requirements and agreed specifications, inspection items may include:

• Key dimensions
• Tooth profile
• Lead
• Pitch
• Radial runout
• Gear accuracy

Inspection reports can be prepared according to project requirements, helping customers evaluate actual manufacturing quality based on measurement data.

Timing Pulleys

In addition to custom gears, CYG manufactures timing pulleys in a wide range of profiles.

Available profiles include:

Inch Profiles

• MXL
• XL
• L
• H

Metric & Curvilinear Profiles

• T
• AT
• HTD
• STS
• RPP
• 2GT
• 3GT
• 5GT
• PowerGrip
• Poly Chain GT

Timing pulleys can be manufactured according to customer drawings, bore designs, hub configurations, materials, and surface finishing requirements.

Custom Sprockets

CYG also provides custom roller chain sprockets for industrial transmission applications.

Available configurations include:

• Single-row sprockets
• Double-row sprockets
• Combination sprockets
• RS15–RS80 pitches
• 06B–24B series

Custom bore, keyway, hub, material, and surface treatment requirements can be evaluated based on the drawing.

RF Conveyor Rollers & Special Transmission Components

CYG manufactures additional transmission components according to customer drawings and application requirements.

Our capabilities include custom tooth forms, milled tooth profiles, and RF conveyor roller configurations.

For special or non-standard components, customers are welcome to provide drawings, photos, samples, or available technical information for feasibility review.

Why OEM Buyers Work with CHANG YI GEAR

Low Volume, High Variety

CYG supports custom manufacturing for gears and transmission components with flexible production quantities.

Customers may begin with prototypes or small trial orders before moving into regular production.

Precision Gear Manufacturing

From hobbing to precision gear grinding, CYG can support different accuracy requirements according to the application.

Multiple Manufacturing Processes

Gear machining, heat treatment, surface finishing, and inspection can be coordinated according to the required manufacturing sequence.

Inspection Data Available

Dimensional and gear inspection records can be provided according to agreed project requirements.

Made in Taiwan

CHANG YI GEAR has been manufacturing gears and transmission components in Taichung, Taiwan since 2000.

Looking for a Custom Gear Manufacturer in Taiwan?

If you are looking for a supplier for custom gears, precision ground gears, gear shafts, timing pulleys, sprockets, or special transmission components, send us your technical information for review.

For faster evaluation, please provide:

• 2D / 3D drawings
• Material requirements
• Module or gear specifications
• Accuracy requirements
• Heat treatment requirements
• Surface finish
• Quantity
• Application or assembly information

If complete drawings are not available, you may also provide existing part photos, samples, and available dimensions for an initial feasibility review.

CHANG YI GEAR CO., LTD.
Custom Gears | Precision Ground Gears | Gear Shafts | Timing Pulleys | Sprockets
Taichung, Taiwan
Email: cygears@cygears.com