Straight gear racks
General linear-motion racks that mate with spur pinions and can include mounting holes, machined ends, or joined lengths.
China Gear Rack Manufacturer
Gear Racks and Pinions
Custom straight, helical, hardened, round, and corrosion-resistant rack-and-pinion components for linear motion.
Source Factory
China Direct (2,800mยฒ Plant)
Precision Grade
DIN 4-7 / AGMA 11-13
Engineering DFM
< 24 Hours Turnaround
Quality System
ISO 9001:2015
Featured Product Model & RFQ Specifications
Custom Gear Rack and Pinion
China direct factory manufacturing custom spur and helical gear racks and matching pinions for CNC machinery, linear axes, and heavy automation.
Product type
Straight or helical gear rack with matched pinion by drawing
Motion function
Rotary-to-linear conversion for positioning, transfer, lifting, or steering
Tooth data
Module or circular pitch, pressure angle, helix data where applicable, and pinion tooth count
Rack details
Section length, cross-section, mounting holes, end machining, and joint arrangement
Manufacturing capability
Technical Overview & Engineering Capability for China Gear Rack Manufacturer.
As a premier China gear rack manufacturer and direct OEM factory in Zhejiang, ZhongYi produces custom straight and helical gear racks with matched pinions for precision linear motion systems. Converting rotary input into smooth linear movement, our gear racks are manufactured from Mod 0.5 to Mod 16 with custom lengths, pre-drilled mounting holes, butt-joint continuous ends, and matched pinions from CAD drawings or physical samples.
Tooth AccuracyDIN 4-7 / AGMA 11-13
Tooth FinishingCNC Ground (Ra โค0.4ยตm)
Heat TreatmentCarburized 58-62 HRC
Product types & variants
Gear Racks and Pinions types and manufacturing paths.
The final product form is confirmed from the buyer drawing, mating component, assembly layout, operating conditions, and inspection requirements.
Helical gear racks
Angled-tooth racks used with compatible helical pinions when smoother engagement or a specific motion design is required.
Hardened or ground racks
Wear-conscious designs where the drawing defines heat treatment, tooth finishing, straightness, and accuracy requirements.
Round, stainless, or plastic racks
Structure- and material-led options for reciprocating layouts, corrosion exposure, light loads, or lubrication restrictions.
Selection & Metallurgy guidance
How to specify the correct gear racks and pinions configuration.
Begin with required linear travel and force. Module, pinion tooth count, and pitch determine movement per pinion revolution, while tooth width, material, and heat treatment influence load capacity. Long axes may require multiple rack sections; the drawing should define end preparation, alignment method, cumulative pitch needs, and mounting-hole relationship to the pitch line. Confirm whether the rack or pinion moves, how backlash is adjusted, whether positioning reverses direction, and how the system is lubricated and protected from chips or dust.
Material & Heat Treatment Options
- Carbon steel for general linear-motion racks
- Alloy steel for hardened or ground tooth requirements
- Stainless steel where corrosion resistance is specified
- Engineering plastic for selected light-load or low-lubrication systems
Engineering Selection Factors
- Module, pressure angle, rack tooth form, and matched pinion
- Total travel, rack length, joining plan, and end machining
- Pitch-line height, mounting holes, datum surface, and straightness
- Load direction, speed, duty cycle, backlash, and positioning accuracy
- Lubrication, contamination, corrosion, and maintenance access
Quality Control & Inspection Matrix
Engineering Evidence & 100% Inspection for Gear Racks and Pinions.
Overseas procurement teams require verifiable technical data, not unsupported claims. Every production batch at ZhongYi is inspected against approved CAD blueprints and international standards (DIN, AGMA, ISO).
Component-Specific Quality Focus:
Rack performance depends on more than the tooth profile. ZhongYi can review the reference surface, pitch-line height, mounting-hole pattern, joint features, straightness, material, heat treatment, and tooth finishing against the approved drawing. Inspection requirements may include length and hole position, tooth thickness, pitch-related checks, hardness, straightness, and trial alignment with a mating pinion or joining gauge when specified. Installation instructions should keep the mounting distance consistent and prevent long or plastic racks from bending during handling. Final accuracy and documentation are confirmed per order rather than assumed.
Coordinate Metrology
Zeiss / Hexagon 3D CMM
Validates 3D spatial GD&T, bore concentricity, center distance, and geometric tolerances down to ยฑ0.002 mm.
Tooth Geometry Analysis
Klingelnberg CNC Gear Analyzer
Inspects involute tooth profile error (fฮฑ), lead crowning (fฮฒ), pitch cumulative error (Fp), and radial runout (Fr).
Hardness & Case Depth
Digital Micro-Vickers & Rockwell Testers
Verifies surface hardness (58โ62 HRC), core toughness, and effective carburized / nitrided case depth gradient.
Chemical Metallurgy
Direct-Reading Optical Spectrometer
100% chemical composition verification of alloy steel forgings (20CrMnTi, 42CrMo, 18CrNiMo7-6, Stainless, POM).
Inspection Deliverables with Every Shipment
Complete Batch Traceability & Certified Test Reports
- EN 10204 Type 3.1 Mill Test Certificate (Chemical & Mechanical Properties)
- Zeiss 3D CMM Full Dimensional Inspection Sheet
- Klingelnberg Tooth Profile & Lead Crowning Graph Report
- Effective Carburized Case Depth & Hardness Curve Data
- 100% Pre-Shipment Visual, Thread & Anti-Rust Quality Verification
Our Factory Quality Commitment:
We maintain strict incoming material spectroscopy, in-process CNC tooth coordinate monitoring, and 100% final pre-shipment dimensional inspection. All custom gear batches are backed by our full manufacturing warranty.
ISO 9001:2015 Certified
DIN 4-7 / AGMA 11-13 Standards
Application fit
Gear Racks and Pinions operating environments.
Match the gear type with real machinery conditions, operating environment, load, speed, and replacement requirements.
- Industrial automation and positioning axes
- Machine tools, gantries, and handling systems
- Lifting, gate, steering, and guide mechanisms
- Construction and special-purpose machinery
Application Markets
View All 5 Industry Hubs โWhere Gear Racks and Pinions Are Engineered & Deployed
Discover how this gear category meets extreme torque, low backlash, quiet operation, and weather-resistance demands in primary industry sectors:
๐๏ธHeavy-Duty & High-Impact Transmission
Construction & Mining Machinery
High-torque, impact-resistant gears, girth rings, and planetary drive sets engineered for excavators, cranes, drilling rigs, and heavy mining crushers.
๐คSub-Arcminute Motion & Dynamic Positioning
Automation & Robotics
Low-backlash, ultra-precise fine-pitch gears, ground helical racks, and planetary gearheads for robotics, AGV wheel drives, and high-speed motion axes.
๐พRugged Heavy-Torque Transmission
Agriculture & Farm Equipment
High-torque bevel gears, spur gears, and splined drive shafts for tractors, harvesters, rotary tillers, and agricultural PTO gearboxes.
Technical FAQ
Common technical and purchasing questions for Gear Racks and Pinions.
These answers support early engineering and procurement review. Final dimensions, materials, tolerances, and process requirements are confirmed against the approved drawing file.
Why choose ZhongYi as your China gear rack manufacturer?โผ
ZhongYi operates precision CNC rack milling and grinding machines in Zhejiang, China. We manufacture both straight and helical racks up to 2-meter single lengths with butt-joint continuous ends, induction hardened teeth (HRC 50-55), and matched pinions at direct factory pricing.
What determines travel per revolution in a rack-and-pinion system?โผ
Travel depends on the pinion pitch geometry. For a standard metric system, module and pinion tooth count determine pitch diameter and linear travel per revolution. Confirm the exact calculation and profile data before releasing the rack and pinion drawings.
How should multiple rack sections be joined?โผ
The mounting base must be straight and stable, and the rack ends need a defined joining and alignment method. Hole position, end pitch, joint gap, and a suitable assembly gauge or reference pinion should be considered in the design.
What information helps control rack backlash?โผ
Provide the mating pinion, mounting distance, center-height adjustment method, direction reversals, load, desired backlash range, and whether the design uses a split, spring-loaded, tapered, or conventional fixed arrangement.
24-Hour Engineering Quote & DFM Review
Upload Your Drawings for Gear Racks and Pinions Manufacturing
Send your 2D blueprints or 3D CAD models. Our senior gear engineering team will review tooth geometry, module/pitch, materials, heat treatment feasibility, and provide transparent factory pricing within 24 hours.
Supported CAD Blueprint & Drawing Formats:
STEP (.step / .stp)AutoCAD (.dwg / .dxf)IGES (.igs)SolidWorks / 3D CADPDF Technical BlueprintsWorn Physical Samples
Mutual NDA Protection
We sign strict Non-Disclosure Agreements to safeguard proprietary designs.
< 24h DFM Feedback
Rapid manufacturability review, tolerance checks, and unit quotation.
Direct Factory Engineering
Direct technical communication with senior master gear artisans.
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