Select the closest gear or shaft category, or describe the equipment function if the part family is still being defined.
Custom 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.
Product families
Custom gears & drivetrain components.
Start with a component type. Explore the full range for planetary parts, racks, reducer components and custom assemblies.
OEM gear components01 · GEAR COMPONENTS
Spur Gears
Straight-tooth gears manufactured from your controlled drawing.
View category
Smooth transmission02 · GEAR COMPONENTS
Helical Gears
Custom helical components for industrial and vehicle drive systems.
View category
Integrated drive systems03 · GEAR COMPONENTS
Internal & Ring Gears
Internal-tooth components for planetary and transmission assemblies.
View category
Combined features04 · GEAR COMPONENTS
Gear & Spline Shafts
Machined shafts with gear and spline features in one component.
View categoryManufacturing & inspection
See where your components are made and measured.
Kerveld is an overseas brand of Taizhou Zhongbang Gear Co., Ltd.
MANUFACTURING BASE
From tooth cutting to finished components
Gear cutting, grinding and component machining are planned around your part drawing, material and order quantity.
Explore manufacturing
QUALITY & INSPECTION
Check the features that matter to your assembly
Agree tooth geometry, critical dimensions and required inspection records before production.
View inspection capabilitiesEquipment brands at our production base
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 applicationsFrom 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.
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.
Our manufacturing base
20+ years of gear manufacturing.
Kerveld is an overseas brand of Taizhou Zhongbang Gear Co., Ltd. We manufacture custom gears, shafts and drivetrain components to your drawing and agreed inspection requirements.
KERVELD · ZHONGBANG GEAR
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 certificateApplication 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.
Application illustrationE-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 articleApplication illustrationAGRICULTURE GUIDE · 6 MIN
Agricultural Gearbox RFQ Guide for OEM Buyers
Connect the gear drawing to tractor, PTO and implement operating conditions.
Read articleApplication illustrationROBOTICS GUIDE · 6 MIN
Robot Joint & Planetary Gear RFQ Guide
Specify robot joint motion, mounting interfaces, backlash measurement and matched-part requirements.
Read articleCommon questions
Answers before your inquiry.
Send your drawing, required quantity and application to request a manufacturing quotation.
Request a quote01What 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.
Request a quote03Do 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.
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.