DIN 6 High-Precision Ground Helical Racks
Premium precision ground racks with total pitch error within 0.035 mm per meter, engineered for high-precision CNC machine tools.
custom ground helical gear rack
Ground Helical Gear Racks
Precision DIN 6 and DIN 7 CNC ground helical gear racks and matched pinions for high-speed, low-noise linear motion and heavy-duty gantry drives.
Customization
100% to Drawing / Sample
Precision Grade
DIN 4-7 / AGMA 11-13
Engineering DFM
< 24 Hours Turnaround
Quality System
ISO 9001:2015
Featured Product Model & RFQ Specifications
Custom Ground Helical Gear Racks
High-precision DIN 6 and DIN 7 CNC ground helical gear racks and matched pinions engineered for fiber laser cutting tables, robotics, and high-speed gantries.
Accuracy standards
DIN 6 (pitch error ≤ 0.035 mm/m) or DIN 7 (pitch error ≤ 0.060 mm/m)
Helix geometry
19°31'42" Right-Hand (standard) or Left-Hand helix, 20° normal pressure angle
Module range
Module M1.5, M2, M3, M4, M5, M6, M8, M10 (custom modules available)
Cross sections
Square or rectangular ground bar: 19x19, 24x24, 29x29, 39x39, 49x49, 59x59, 79x79 mm
Manufacturing capability
Technical Overview & Engineering Capability for custom ground helical gear rack.
Precision ground helical gear racks provide superior positioning accuracy, higher contact ratio, and substantially lower operating noise compared to straight-cut racks. The 19°31'42" helix angle increases tooth contact overlap, distributing driving torque across multiple teeth simultaneously. ZhongYi manufactures custom ground helical racks in DIN 6 (total pitch error < 0.035 mm / 1000 mm) and DIN 7 accuracy grades from high-strength alloy steels (such as 42CrMo, C45, or 20CrMnTi). Manufacturing scope includes 6-side precision grinding of bar stock, tooth flank CNC profile grinding, induction hardened or case-carburized tooth surfaces (HRC 50-60), and precision continuous butt-joint end machining (counterbored mounting holes and dowel pin reaming) for seamless continuous travel across long linear axes.
Tooth Accuracy DIN 4-7 / AGMA 11-13
Tooth Finishing CNC Ground (Ra ≤0.4µm)
Heat Treatment Carburized 58-62 HRC
Product types & variants
Ground Helical Gear Racks types and manufacturing paths.
The final product form is confirmed from the buyer drawing, mating component, assembly layout, operating conditions, and inspection requirements.
DIN 7 Hardened & Ground Linear Racks
Cost-effective precision racks combining induction-hardened tooth flanks with profile grinding for heavy-duty industrial automation.
Continuous Butt-Joint End Machined Racks
Racks with pitch-matched ground end faces designed to be bolted end-to-end for infinite travel lengths without pitch step deviation.
Matched Helical Pinions & Integral Pinion Shafts
Precision ground helical pinions (with left- or right-hand helix) and splined/keyed bores matched to eliminate rack-pinion meshing errors.
Selection & Metallurgy guidance
How to specify the correct ground helical gear racks configuration.
When selecting a ground helical gear rack, confirm the module, hand of helix (standard 19°31'42" right hand meshes with a left-hand pinion), pitch error requirement (DIN 6 for machine tools, DIN 7 for general automation), cross-sectional dimensions (e.g. 29x29, 39x39, 49x49 mm), and bolt hole spacing. Provide overall axis stroke length so that standard 1000 mm or 2000 mm lengths can be configured with continuous end-machining for butt-joint installation. Ensure the mounting surface datum, guide rails, and pinion center distance are aligned to prevent edge loading on helical teeth.
Material & Heat Treatment Options
- High-strength alloy steel (42CrMo / AISI 4140) for high torque and fatigue resistance
- Medium carbon steel (C45 / AISI 1045) with induction hardened tooth flanks
- Case carburizing alloy (20CrMnTi / 8620) for severe wear resistance
- Stainless steel (304 / 316 / 17-4PH) for precision washdown and cleanroom robotics
Engineering Selection Factors
- Module (M1.5, M2, M3, M4, M5, M6, M8, M10) and helix angle (19°31'42")
- DIN 6 vs DIN 7 pitch accuracy grade and maximum cumulative pitch error
- Stroke length, single bar length (500 mm / 1000 mm / 2000 mm), and butt-joint alignment
- Hardness depth (effective case depth 1.0 - 2.0 mm) and core toughness
- Pre-drilled mounting hole pattern (top/bottom/side holes) and dowel pin positions
Quality Control & Inspection Matrix
Engineering Evidence & 100% Inspection for Ground Helical Gear Racks.
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:
Ground helical rack quality is verified using high-precision laser interferometers, CNC gear measuring centers, and granite surface plates. Inspection records document cumulative pitch error over total length, single pitch error (fpt), total radial runout, 6-face straightness and parallelism, tooth surface roughness (Ra 0.4 - 0.8 µm), and surface hardness profile. Test reports and material certificates are supplied with every production batch.
Zeiss / Hexagon 3D CMM
Validates 3D spatial GD&T, bore concentricity, center distance, and geometric tolerances down to ±0.002 mm.
Klingelnberg CNC Gear Analyzer
Inspects involute tooth profile error (fα), lead crowning (fβ), pitch cumulative error (Fp), and radial runout (Fr).
Digital Micro-Vickers & Rockwell Testers
Verifies surface hardness (58–62 HRC), core toughness, and effective carburized / nitrided case depth gradient.
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
Ground Helical Gear Racks operating environments.
Match the gear type with real machinery conditions, operating environment, load, speed, and replacement requirements.
- CNC fiber laser cutting machines and plasma cutting gantries
- High-speed CNC gantry milling machines and woodworking routers
- Robotic linear 7th-axis transfer tracks and automation pick-and-place
- Heavy-duty linear transfer mechanisms, stamping presses, and automotive assembly lines
Application Markets
View All 5 Industry Hubs →
Where Ground Helical Gear Racks Are Engineered & Deployed
Discover how this gear category meets extreme torque, low backlash, quiet operation, and weather-resistance demands in primary industry sectors:
🏗️ Heavy-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.
🤖 Sub-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.
🌾 Rugged 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 Ground Helical Gear Racks.
These answers support early engineering and procurement review. Final dimensions, materials, tolerances, and process requirements are confirmed against the approved drawing file.
Why are helical gear racks preferred over straight spur racks in CNC laser machines? ▼
Helical racks have angled teeth (19°31'42") providing a continuous contact ratio (> 2.0), which significantly reduces vibration, acoustic noise, and velocity ripple during high-speed acceleration (up to 2.5G) while delivering higher feed thrust.
How do continuous butt-joint rack ends maintain pitch accuracy when connected? ▼
The ends of our ground racks are CNC machined at half the pitch distance from the last tooth root. When two racks are positioned end-to-end with an alignment companion rack during installation, the pitch between adjacent teeth across the joint remains perfectly within DIN tolerance.
What is the difference between DIN 6 and DIN 7 ground racks? ▼
DIN 6 racks undergo 6-side finish grinding and complete CNC tooth flank grinding, offering cumulative pitch error ≤ 0.035 mm/m. DIN 7 racks feature induction-hardened teeth with precision grinding, offering pitch error ≤ 0.060 mm/m for general high-speed automation.
24-Hour Engineering Quote & DFM Review
Upload Your Drawings for Ground Helical Gear Racks 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 CAD PDF Technical Blueprints Worn 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.
Related product categories