Precision Shaft Cores, Gears & Gearboxes Manufacturer

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Custom Gearboxes

Gear Shafts

Gear Discs & Flange Parts

Shafts

Gearboxes

Gear Discs & Flange Parts

Machining Equipment

Inspection Equipment

Quality System

Global Partners

Material Handling Industrial Motors

Industrial Automation Servo Motors

Rail Transit Door Systems

Consumer Appliance Motors

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Precision Transmission Shafts and Gear Components for OEM Drive Systems

YUBAO helps motor, machinery and rail-door system manufacturers turn drive drawings into stable production parts.

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20+ Years

shaft machining experience

Gear & Shaft Manufacturing

Made from drawings

CMM & Gear Analyzer

CMM Gear Analyzer Tons of Steel Structures

OEM Drawing Review

route checked before production

Samples to Batch

trial batches and repeat orders

A drive system does not fail because a catalog category is wrong. It fails when a shaft runs out, a gear tooth wears too early, a bushing does not fit, or a small part makes the whole assembly noisy. These are the parts YUBAO works on every day.

Parts That Decide How a Drive System Feels

Gear Shafts

Integrated shaft-and-gearparts for motors, reducersand compact driveassemblies.

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Gear Discs & Flange Gears

For high-ratio or self-locking drive structures where tooth contact and finish matter.

Plates

high quality with complex tooth profiles.

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Gearboxs

High-precision, quiet, maintenance-Free

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GEARBOXES / GEAR UNITS

A Gearbox Is Not Just a Box of Parts

The input shaft, spline connection, gear shaft, worm drive, bushing and output unit have to fit, rotate and last together.

When a project needs more than loose parts, YUBAO can support selected gearbox and gear unit projects from drawing review to sample validation and batch follow-up.

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Input Shaft → Spline / Custom ShaftPrecision connections built to your drawing.

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Gear Shaft / Worm Shaft → Bushing / Housing FitStable meshing, accurate fit, long service life.

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Gearbox / Gear Unit → Tested Drive ModuleAssembled, tested, and verified for your application.

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Input ShaftTransmits power with precision.

Spline DriveEnsures accurate alignment and torque transfer.

Gear ShaftHelical gear for smooth power transmission.

BushingSupports and positions the shaft system.

Gear UnitIntegrated output for your application.

✓

Engineered to Work as One.Every component is selected, matched, and validated to deliver reliable performance in your system.

Built Around the Way Your Equipment Works

Applications
A forklift motor, a servo drive, a rail door operator and an appliance motor do not ask for the same part. Each one has its own load, space, noise, life and cost pressure.

Have a Drawing? Let Us Check the Route First.

A useful quote starts before the price. Send the drawing, quantity, material and application if you have them. We will look at the process route, critical fits, gear data, heat treatment and inspection points before giving feedback.

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MANUFACTURING CAPABILITIES

The Route Matters Before the Quote

A part may look simple on a drawing, but the manufacturing route decides whether it can be repeated. We look at turning, gear cutting, grinding, welding, heat treatment and inspection as one route.

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CNC Turning

For custom shafts, bushings, sleeves, stepped parts and turned drive components.

Gear Hobbing & Shaping

For gear shafts, worm-related parts, gear discs and compact drive components.

Grinding

For shaft finish, bearing seats, runout control and higher-accuracy drive parts.

Welding & Shaft Integration

For welded shafts and structures where material or geometry needs to be combined.

Heat Treatment Coordination

For hardness, wear resistance and project-specific treatment requirements.

Assembly & Run-In Support

For selected gearbox and gear unit projects where parts need to be delivered as a working drive module.

Engineering Support

Engineering Support Before Production Starts.

Some projects need more than machining. We can help review manufacturability, fit risks, material choices, heat treatment routes and assembly logic before the sample is made.

Drawing Review

Check dimensions, tolerances, gear data and critical assembly features before quotation.

DFM Suggestions

Point out machining risks, difficult features or tolerance conflicts where needed.

Sample Validation

Support prototype or trial batch before regular production.

Assembly Logic Review

For gearbox and gear unit projects, review how shafts, gears, bushings and housing parts work together.

Quality System

Yubao consistently adheres to the quality policy of "Meeting International Standards, Continuous Improvement, Stable Quality Enhancement, Serving Global Customers," and has established a comprehensive quality management system:

ISO 9001 (SGS Certified): Total quality management covering the entire process from supplier management to after-sales service

IATF 16949: Compliant with automotive industry quality standards, implementing APQP advanced product quality planning and PPAP production part approval process

Machining Equipment

35+ CNC and automatic lathes with robotic loading enable 24/7 automated production. Full-spectrum gear processing—including hobbing, shaping, grinding and skiving—covers spur, helical, internal and double gears. Complemented by precision centerless, cylindrical grinding and friction welding to ensure critical tolerances and surface quality.

About Us

Changzhou Yubao Transmission Technology Co., Ltd. was established in 1999. We are a high-tech enterprise specializing in the R D, production, and sales of precision shaft cores, gears, gearboxes, and other hardware transmission components.

After more than two decades of development, the company has established a complete industry chain covering raw material procurement, precision machining, heat treatment, and finished product inspection. Our products are widely used in household appliance motors, industrial automation equipment, construction machinery, new energy motors, forklifts, rail transit, and other fields, exporting to Europe, America, and Asian markets.

Equipped with Hexagon CMMs, Gleason gear analyzers, NCS spectrometers, and in-process laser micrometers, our quality lab delivers full-dimension precision measurement, gear verification, material analysis, and real-time production monitoring.

Global Partner

With excellent product quality and superior service, Yubao has established long-term and stable partnerships with numerous internationally renowned enterprises.

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愉宝公司赴沪参观第十四届中国数控机床展览会（CCMT 2026）满载而归,Changzhou Yubao Transmission Technology Co., Ltd.

Visits the 14th China CNC Machine Tool Fair (CCMT 2026) in Shanghai

Company: About Us; Machining Equipment; Inspection Equipment; Quality System; Global Partners

Contact Us: No. 8 Dezai Road, Jintan District, Changzhou City, Jiangsu Province, China; zhangxinlei@czxinyubao.com; 86 0519 8279 0006