· Product Overview

· Core Specifications

• Material: 20CrMnTi Carburizing Alloy SteelOffers high hardenability, optimal toughness for dynamic loads, and superior wear resistance after heat treatment.
• Manufacturing Standards:
  • Gear Design: ISO 6336 (International Gear Load Capacity Standard)
  • Precision Grade: GB/T 10095.2 Class 6 (equivalent to DIN 3962 Class 6, ensuring tight, stable tooth meshing)
• Key Processes:CNC Turning → CNC Hobbing (tooth profile forming) → Carburizing Quenching → Tooth Surface Grinding → Black Oxide Surface Treatment
• Standard Key Parameters:
  • Module: 1.5–3 (fully customizable)
  • Number of Teeth: 40–80 (fully customizable)
  • Tooth Surface Hardness: HRC 58–62
  • Dimensional Tolerance: ±0.01mm (tooth profile deviation)

· Application Scenarios

• Automotive Drivetrains: Transmission assemblies, differential gear sets, and transfer case power components.
• Industrial Gearboxes: Heavy-duty conveyor gearboxes, packaging equipment drivetrains, and textile machinery transmission systems.
• Precision Equipment: Robot joint transmission mechanisms, CNC machine tool feed systems, and medical device drive units.
• Agricultural Machinery: Tractor gearboxes and harvester power transmission components.

· Production Process Introduction

1. Raw Material Procurement: Source 20CrMnTi alloy steel round bars (compliant with GB/T 3077-2015 material standards).
2. CNC Turning: Machine the inner bore, outer diameter, and end faces to pre-process dimensions.
3. CNC Hobbing: Form accurate tooth profiles using high-precision CNC hobbing machines (ensuring consistent tooth shape).
4. Carburizing Quenching: Heat the gear ring in a controlled atmosphere furnace (920°C) to carburize the tooth surface, then quench to achieve target hardness.
5. Tooth Surface Grinding: Finish-grind the tooth surface to reduce roughness and improve meshing accuracy.
6. Surface Treatment: Apply black oxide coating to enhance corrosion resistance.
7. Quality Inspection: Use gear measuring centers to verify tooth profile/lead deviation; conduct hardness testing and dimensional checks.

· Packaging and Shipping Methods

• Packaging:
  • Individual units: Wrapped in rust-proof oil paper + foam cushioning (prevents scratches/wear).
  • Bulk orders: Packed in moisture-proof cardboard boxes with custom foam partitions (secures parts to avoid collision) + wooden pallet reinforcement.
• Shipping Options:
  • Express Delivery (DHL/FedEx: 3–5 business days for samples).
  • Air Freight (7–10 business days for small batches).
  • Sea Freight (20–25 business days for bulk orders).All shipments include rust-proof protection and damage insurance.

· Process

· Frequently Asked Questions (FAQ)

• MOQ (Minimum Order Quantity): 500 pieces per standard specification; 200 pieces for custom designs (with valid technical drawings).
• Lead Time: 10–15 working days (includes heat treatment and precision inspection); expedited production (7–10 working days) is available for urgent orders (additional fees apply).
• Customization Capability: We support full customization—adjust module, tooth count, inner/outer diameter, material (e.g., 304 stainless steel for corrosion-prone environments), and precision grade based on your technical drawings. Our gear engineering team will validate design feasibility for load capacity and meshing performance.