Product Details
A special steel enterprise specializing in the production, research and development and sales of high alloy steel forgings
Gear Ring / Slewing Ring Forging
Key words:
Classification:
Gear Ring / Slewing Ring Forging
Product Name: Ring Gear / Annular Gear
Product Description: A circular gear component with teeth on outer/inner diameter, used to mesh with other gears for torque transmission, speed adjustment and direction change. Core part for planetary gearboxes, automotive differentials and heavy machinery.
1. Classification
- By Tooth Direction: Spur ring gear, Helical ring gear, Herringbone ring gear
- By Meshing Type: External ring gear, Internal ring gear (core of planetary drive)
- By Tooth Profile: Involute (universal), Circular/hypoid (for automotive differential), Face gear (for indexing)
2. Key Technical Parameters
Parameter | Specification |
Module (m) | 0.5 – 30+ (larger for heavy load) |
Number of Teeth (z) | Internal ring gear: ≥ 50; External ring gear: Customizable |
Pressure Angle (α) | Standard: 20°; Heavy load: 25° |
Helix Angle (β) | 8° – 20° (for helical ring gear) |
Accuracy Grade (GB/T 10095) | Precision: 5–7 Grade; General use: 8–9 Grade |
Surface Hardness | HRC 58 – 62 (after heat treatment) |
3. Materials
- Carbon/Alloy Steel: 45#, 40Cr, 42CrMo, 20CrMnTi (carburizing and quenching, high strength & wear-resistant)
- Cast Steel/Ductile Iron: ZG45, QT500-7 (low cost, good vibration absorption)
- Special Materials: Stainless steel (anti-corrosion), Powder metallurgy (lightweight), Engineering plastics (light load & quiet)
4. Manufacturing Processes
Forging → Turning → Hobbing/Shaping (external/internal teeth) → Heat Treatment (quenching, tempering, carburizing) → Finishing (gear grinding, honing)
5. Core Features
- Compact structure: Hollow design, space-saving
- High load capacity: Large contact area in internal meshing
- Wide transmission ratio: Single-stage ratio i=3–100+
- Smooth operation: Low noise and vibration
- Long service life: High-quality materials & precision machining
6. Main Applications
Automotive (differential, transmission, starter), Industrial (planetary gearboxes, slewing bearings, machine tools), Heavy machinery (excavators, mining equipment, rolling mills), Aerospace (radar, satellite antennas)
7. Maintenance Tips
- Regularly check lubrication (oil quality and quantity) to avoid dry friction
- Avoid overload and impact
- Regularly inspect tooth condition, backlash and coaxiality
Customization: Customizable according to customer’s drawings and requirements (size, parameters, materials)
Minimum Order Quantity (MOQ): 1 Pcs (Negotiable for bulk orders or customized requirements)
Delivery Time: 15-30 Working Days (Depends on order quantity and customization complexity)
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