Upload the current PDF, STEP, IGES, DWG, DXF or reference file and define the project quantity and timing.
Request a quotationCustom precision gear manufacturing
Custom OEM Gears & Drivetrain Components
Custom gears, shafts and transmission parts made to your drawings for industrial machinery, agricultural equipment, electric vehicles and automation.
Start where your project starts
Start your gear project.
Send a drawing for a quotation, find your gear type, or explore parts for your equipment.
Find the gear, shaft or ring you need, then check its manufacturing and inspection requirements.
Browse componentsFind parts for your machine and the operating details to include in your quotation request.
Explore applicationsProduct families
Custom gears & drivetrain components.
Spur gears, helical gears, internal rings, shafts and related parts manufactured to your drawings. Select a product to see examples and quotation requirements.
OEM gear components01 · GEAR COMPONENTS
Spur Gears
Straight-tooth gears manufactured from your controlled drawing.
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Smooth transmission02 · GEAR COMPONENTS
Helical Gears
Custom helical components for industrial and vehicle drive systems.
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Integrated drive systems03 · GEAR COMPONENTS
Internal & Ring Gears
Internal-tooth components for planetary and transmission assemblies.
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Combined features04 · GEAR COMPONENTS
Gear & Spline Shafts
Machined shafts with gear and spline features in one component.
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Compact power density05 · GEAR COMPONENTS
Planetary Components
Sun gears, planet gears, carriers and connected components.
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Linear motion06 · GEAR COMPONENTS
Steering Racks
Drawing-led steering rack components for vehicle and handling systems.
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Transmission systems07 · GEAR COMPONENTS
Gearbox & Reducer Components
Gears, shafts and connected parts for reduction and gearbox assemblies.
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Custom OEM supply08 · GEAR COMPONENTS
Custom Gears & Assemblies
Multi-feature components and matched assemblies reviewed around your project.
View product detailsManufacturing capability
Precision manufacturing, from start to finish.
Gear cutting, grinding, CNC machining and inspection are planned around your drawing, material and required finished dimensions.
01 · TOOTH GENERATION
Gear Hobbing & Power Skiving
Cut external and internal gear teeth using the process suited to your tooth geometry, material and drawing requirements.
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02 · HARD FINISHING
Precision Gear Grinding
Finish gear teeth to the specified profile and surface requirements, with inspection matched to your drawing.
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03 · COMPONENT MACHINING
CNC Turning & Machining
Machine shaft journals, bores, mounting faces and other features needed for correct assembly.
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04 · VERIFICATION
Inspection & Metrology
Check gear teeth, critical dimensions and mounting relationships against the agreed inspection requirements.
View quality and inspection →Equipment brands
Equipment behind our production.
Our production and inspection equipment includes Nidec, Qinchuan, Mazak, Doosan, Klingelnberg, Hexagon and Econ systems.
High-speed gear grinding
Gear grinding systems
CNC turning and machining
CNC turning and machining
Gear measurement
Coordinate metrology
16 application scenarios
Gear components for your industry.
Explore tractor and implement drives, industrial reducers, electric transmissions and motion-control systems. Connect the equipment function to the right gear component.
01 · 4 APPLICATIONS
Industrial Machinery
Gearboxes, pumps, machine tools and material-handling systems.
Explore applications
02 · 4 APPLICATIONS
Agricultural Machinery
Tractors, PTO drives, tillage, harvesting, mowing and seeding equipment.
Explore applications
03 · 4 APPLICATIONS
New Energy Vehicles
E-drive reduction, differential, electric-pump and transmission projects.
Explore applications
04 · 4 APPLICATIONS
Robotics & Automation
Robot joints, planetary actuators, servo reducers and indexing drives.
Explore applicationsYour project team
20+ years of gear manufacturing.
Work with KERVELD for your Zhongbang Gear manufacturing inquiry, from drawing review and quotation requirements to production coordination.
ZHONGBANG MANUFACTURING · KERVELD EXPORT COORDINATION
One team for your custom gear project.
More than 20 years of custom gear manufacturing, supported by CNC production and gear measurement equipment. Send your drawing to discuss manufacturing and inspection requirements.
About KERVELDQuality & innovation evidence
Patents & quality credentials.
Review our 12 granted utility model patents, IATF 16949:2016 certificate and National High-Tech Enterprise certificate for your supplier evaluation.
INTELLECTUAL PROPERTY · QUALITY SYSTEM · RECOGNITION
View patent certificates Patents & credentials
12 granted utility model patents plus IATF 16949:2016 certification and National High-Tech Enterprise recognition.
01 / 12
MANUFACTURING EQUIPMENT
Gear Polishing Machine
30 January 2024 · ZL 2023 2 0465367.5
View patent02 / 12
GEAR COMPONENT
Double Spur Gear
5 December 2023 · ZL 2023 2 1662317.2
View patent03 / 12
GEAR COMPONENT
Composite-Formed Gear
1 March 2024 · ZL 2023 2 2324223.0
View patent04 / 12
GEAR COMPONENT
High-Precision Drive Gear
19 March 2024 · ZL 2023 2 2338363.3
View patent05 / 12
GEAR COMPONENT
High-Adaptability Adjustable Gear
19 March 2024 · ZL 2023 2 2422194.1
View patent06 / 12
MANUFACTURING FIXTURE
Gear Tooling Fixture
16 April 2024 · ZL 2023 2 2465319.9
View patent07 / 12
GEAR COMPONENT
Wear-Resistant High-Strength Gear
7 January 2025 · ZL 2024 2 1224018.5
View patent08 / 12
GEAR COMPONENT
High-Strength Compact Gear
27 December 2024 · ZL 2024 2 1224145.5
View patent09 / 12
GEAR ASSEMBLY
Limit-Position Gear Assembly
25 March 2025 · ZL 2024 2 1617335.3
View patent10 / 12
MANUFACTURING FIXTURE
Expansion Sleeve Fixture for Limit-Position Gears
24 October 2025 · ZL 2024 2 2995154.0
View patent11 / 12
MANUFACTURING FIXTURE
Gear Grinding Fixture
24 October 2025 · ZL 2024 2 2995161.0
View patent12 / 12
GEAR SHAFT
Deformation-Resistant High-Strength Gear Shaft
13 February 2026 · ZL 2025 2 0762892.2
View patentCERT 01
QUALITY MANAGEMENT
IATF 16949:2016
Transmission gears, engine gears and shafts
View certificateCERT 02
ENTERPRISE RECOGNITION
National High-Tech Enterprise
Certificate GR202333005803
View certificateFrom drawing to quotation
From drawing to quotation.
Send your drawing and quantity. We review the part, clarify manufacturing and inspection requirements, and prepare a quotation based on your project.
Select the closest gear or shaft category, or describe the equipment function if the part family is still being defined.
Send the latest PDF, STEP, IGES, DWG, DXF or available reference file.
State prototype quantity, estimated annual volume, application and target timing.
List the inspection criteria, reports and supporting records required for acceptance.
Common questions
Answers before your inquiry.
Send your drawing, required quantity and application to request a manufacturing quotation.
Talk to an engineer01What should I include in a gear RFQ?+
Send the latest drawing revision, part name, application, material or heat-treatment requirements where defined, required quantity and target timing.
Read the RFQ checklist →02Can I upload a STEP, PDF or drawing file?+
Yes. Upload one PDF, STEP/STP, IGES/IGS, DWG, DXF, JPG or PNG file, up to 20 MB.
Upload your drawing →03Do you supply prototypes and production quantities?+
Yes. Tell us whether you need prototype parts or repeat production, and include the initial quantity and expected annual demand.
04Which industries do you serve?+
We manufacture custom gear parts for industrial machinery, agricultural equipment, electric and hybrid vehicles, and robotics or automation.
05Can inspection documents be requested?+
Yes. Identify the acceptance criteria, reports and supporting records required for your project during the quotation stage.
06How are custom parts quoted?+
Each inquiry is reviewed against the drawing, application, material, process needs, quantity and requested documentation before commitment.
Application knowledge center
Practical guides for better gear sourcing.
Understand drawing packages, electric-drive requirements and agricultural or robot-joint applications before you prepare a manufacturing inquiry.
E-DRIVE GUIDE · 6 MIN
Electric Drive Gear RFQ: Speed and NVH
Prepare the drive-stage, mounting and noise or vibration requirements for your electric-drive gear quotation.
Read guide →AGRICULTURE GUIDE · 6 MIN
Agricultural Gearbox RFQ Guide for OEM Buyers
Connect the gear drawing to tractor, PTO and implement operating conditions.
Read guide →ROBOTICS GUIDE · 6 MIN
Robot Joint & Planetary Gear RFQ Guide
Specify robot joint motion, mounting interfaces, backlash measurement and matched-part requirements.
Read guide →Talk to KERVELDOEM gear project review
Let’s discuss your gear project.
Share your drawing, required quantity, application and inspection requirements so we can assess the manufacturing work and prepare a quotation.