Selecting the right gears for heavy-duty industrial applications requires careful consideration of multiple technical parameters. As a leading industrial gear manufacturer with 9+ years of global export experience, YIZHI MACHINERY break down the key decision-making factors to ensure optimal performance and longevity.
1. Load Capacity & Torque Requirements
Why it matters: Underestimating load demands is the first cause of premature gear failure.
- Key calculations: Bending strength (ISO 6336)
Surface durability (ISO 6336-2)
Shock load tolerance (for crushers/mixers) - Our solution: Custom tooth profile optimization to distribute stress evenly.
2.Material Selection
Common industrial gear materials comparison:
| Material | Hardness (HRC) | Best For | Service Life |
|---|---|---|---|
| 4140 Alloy Steel | 28-32 | General machinery | 5-7 years |
| 4340 Heat-Treated | 50-54 | Mining equipment | 8-10 years |
| 17-4PH Stainless | 40-45 | Food processing | 6-8 years |
3. Precision Class (ISO 1328)
Accuracy requirements by equipment type:
- Conveyor systems: ISO 8-9
- Packaging machines: ISO 6-7
- Robotic arms: ISO 4-5
4. Lubrication & Maintenance Needs
Modern lubrication options:
- Oil bath: Traditional method for large gearboxes
- Grease-packed: For enclosed systems with <500 rpm
- Dry Lubricant: Food-grade applications (USDA/FDA compliant)
5. Environmental Conditions
Specialized solutions for harsh environments:
- High-temperature (≤300°C): Tool steel gears with molybdenum disulfide coating
- Wet conditions: Stainless steel and corrosion-resistant tooth profile
- Explosive atmospheres: Spark-resistant bronze alloys (ATEX certified)
