Designing & Manufacturing Spur Gears & Pinions with Custom Surface Treatments
Donghua specializes in the design and manufacturing of spur gears and pinions with a full range of surface treatment options to enhance durability, corrosion resistance, and wear life. Spur gears-with their straight, parallel teeth-are the most common and efficient solution for transmitting torque between parallel shafts. As a leading global manufacturer since 1991, we deliver precision-machined gears with custom surface finishes to meet your exact application requirements.A spur gear and pinion system is a fundamental power transmission component used in machinery across every industry. Key characteristics include:
- Straight Teeth: Teeth are parallel to the axis of rotation, providing high efficiency and simplicity.
- Torque Transmission: The pinion (smaller gear) meshes with the spur gear (larger gear) to transmit torque between parallel shafts.
- High Efficiency: Spur gears offer one of the highest efficiency rates among gear types.
- Durability: When properly manufactured and treated, spur gears provide long service life in demanding applications.
- Versatility: Used in automobiles, aircraft, industrial equipment, and countless other machinery types.
Surface Treatment Options for Enhanced Performance
| Surface Treatment | Benefits | Applications |
|---|---|---|
| Carburizing | Increases surface hardness while maintaining tough core; excellent wear resistance | High-load, high-wear applications |
| Hardening (Induction/Case) | Enhances tooth surface strength; extends gear life | Automotive transmissions, heavy machinery |
| Zinc Plating | Corrosion resistance; cost-effective protection | Outdoor equipment, moderate environments |
| Black Oxide | Mild corrosion resistance; reduces glare; improves lubricant retention | General industrial applications |
| Nickel Plating | Superior corrosion resistance; uniform coating | Marine, food processing, chemical environments |
| Chrome Plating | Hard, wear-resistant surface; low friction | High-precision, high-wear applications |
| Phosphating | Improves lubricant adhesion; corrosion resistance | Automotive, heavy machinery |
| Polishing | Smooth surface finish; reduces friction; enhances appearance | Precision instruments, visible components |
Spur Gear & Pinion Specifications
| Specification | Available Options / Details |
|---|---|
| Module Range | 0.5 to 16 |
| Tooth Surface Hardness | Hardened tooth surface (customizable per application) |
| Materials | Steel (various grades), stainless steel, aluminum, custom alloys |
| Surface Treatments | Carburizing, induction hardening, zinc plating, black oxide, nickel plating, chrome plating, phosphating, polishing |
| Gear Type | Spur gear (straight teeth, parallel to axis) |
| Pinion Type | Smaller gear in spur gear set; custom sizes available |
| Applications | Automobiles, aircraft, industrial equipment, machinery drives |
| Customization | OEM manufacturing per drawings or samples |
| Lubrication | Compatible with oil or grease lubrication systems |
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