CNC Milling, Drilling, and Boring Solutions for Custom Alloy Steel Gears in Agricultural Machinery
CNC Machining of Agricultural Gears: Strength and Precision for Harsh Field Applications
Custom gears in agricultural machinery are essential for power transmission, motion control, and operational stability under heavy mechanical loads and harsh outdoor conditions. These components must endure shock, dust, moisture, and cyclic torque while maintaining precise meshing. At Neway, we specialize in CNC milling, CNC drilling, and CNC boring of alloy steel gears for agricultural equipment applications.
Every gear is processed with sandblasting and heat treatment to improve surface finish, wear resistance, and gear-tooth hardness for demanding field performance.
Why Alloy Steel Is Ideal for Agricultural Gear Manufacturing
High Strength and Fatigue Resistance
Alloy steels such as 20CrMnTi, 40Cr, and 42CrMo offer tensile strength above 800 MPa after heat treatment, excellent wear resistance, and enhanced hardenability. These properties make them ideal for gears subjected to high torque and shock loading in farming implements like harvesters, tillers, and tractors.
Thermal and Structural Stability After Treatment
Alloy steels maintain dimensional accuracy after quenching and tempering. Their fine grain structure supports precise gear tooth shaping and post-processing such as honing or boring.
CNC Gear Machining Workflow
CNC Milling for Gear Tooth Profiling and Body Geometry
We use gear-milling toolpaths to form standard and non-standard gear teeth (involute profiles, helical, spur), as well as part features such as hubs and mounting flanges. Our capabilities include:
Module range: 1–8
Tooth profile accuracy: DIN 7–8
Tooth-to-hub concentricity: ≤0.02 mm
CNC Drilling for Bolt Circles and Lubrication Paths
Drilled holes are machined with chamfers or countersinks for bolts, pins, and lubrication ports, ensuring secure assembly and functional integration.
Position tolerance: ±0.02 mm
Depth control: ≤±0.05 mm
Burr-free edge treatment after drilling
CNC Boring for Shaft Fit and Concentricity
CNC boring ensures high-accuracy internal diameters, including:
Shaft bore tolerance: H7 or H6
Roundness: ≤0.01 mm
Concentricity with gear pitch diameter: ≤0.02 mm
This ensures stable engagement with transmission shafts and low-noise gear operation.
Surface Treatment: Sandblasting and Heat Treatment
Sandblasting for Surface Cleanliness and Preparation
Sandblasting removes machining residues and scales while improving the surface’s ability to retain lubrication and uniformly absorb heat during treatment.
Achieves matte surface for gear housing contact
Surface roughness: Ra 1.6–3.2 µm
Improves visual inspection of gear root and flank condition
Heat Treatment for Wear and Core Strength
We apply carburizing, quenching, and tempering or induction hardening depending on gear requirements:
Surface hardness: HRC 58–62
Case depth: 0.8–1.2 mm
Core toughness for torque absorption
Heat-treated alloy gears show minimal deformation due to controlled furnace cycles and fixturing.
Quality Control and Gear Inspection
Gear measuring center: tooth profile, pitch, and runout
Bore diameter and coaxiality checked via CMM
Surface hardness tested on gear flank and core
Documentation: COC, material certs, heat treatment chart, gear inspection report
Why Choose Neway for Custom Agricultural Gear Manufacturing
Proven expertise in alloy steel CNC machining for transmission-critical parts
Full integration of CNC milling, drilling, boring, and surface treatments
Support for low- to high-volume production with batch traceability
One-stop gear machining solution tailored to agricultural OEM specifications
CNC Services for Agricultural Gear Projects
Neway provides complete CNC gear manufacturing for agricultural machines requiring rugged, high-torque drive components. Services include:
Precision CNC Milling: For standard and non-standard tooth forms
CNC Drilling and Boring: For concentric shaft fits and bolt-hole patterns
Heat Treatment and Sandblasting: For long-lasting performance in dirty, corrosive, and high-load environments
We help agricultural equipment makers improve drivetrain reliability with robust, precisely machined gear systems.
FAQs
What gear tolerances and hardness levels can Neway achieve for agricultural gears?
Which alloy steels are most commonly used for custom gear manufacturing?
Can Neway produce both internal and external gear forms via CNC?
What quality inspections are performed on each gear batch?
Is surface treatment like carburizing or induction hardening included in your process?
