Planetary Gear Reducers | High-torque machinery, robotics, construction equipment | Planetary gearing (▲▲▲ 95% efficiency vs worm gear’s 50-70%) Cast iron housing (250 MPa tensile strength, ASTM A48) CE certified | ▲▲▲ High efficiency, compact design, long lifespan Quiet operation (43 dBA, quieter than refrigerator hum) | Higher cost compared to worm gears Requires precise alignment (±0.1mm tolerance) |
Worm Gear Reducers | Low-speed conveyors, vertical lifts | Worm gear (50-70% efficiency) Bronze housing (ASTM B558) IP65 rating | Lower cost, self-locking for braking Compact footprint | ▲▲ Low efficiency leads to heat buildup High noise (75 dBA, louder than vacuum cleaner) |
Helical Gear Reducers | High-speed automotive, pumps | Helical gears (▲▲ 85% efficiency) Aluminum housing (ASTM B209) IP54 rating | Smooth operation (≤50 dB) Handles high-speed input (up to 3000 RPM) | Moderate torque capacity (max 10,000 Nm) Higher wear rate due to sliding contact |
Bevel Gear Reducers | Marine equipment, right-angle drives | Bevel gears (▲ 80% efficiency) Steel housing (ASTM A36) IP67 rating | ▲▲ Compact for right-angle applications High torque (up to 20,000 Nm) | High maintenance (grease required every 500 hours) High noise (68 dBA) |
Parallel Shaft Reducers | Conveyor systems, pumps | Parallel gears (▲ 80% efficiency) Cast iron housing (ASTM A48) IP55 rating | Simple design (easy to repair) Cheaper than planetary reducers | ▲▲ High noise (82 dBA) Limited torque (max 8,000 Nm) |
Harmonic Drive Reducers | Precision robotics, aerospace | Elliptical gear (▲▲▲ 90% efficiency) Titanium housing (ASTM F1198) ISO 9001 | ▲▲▲ Zero backlash (≤1 arc-minute) Lightweight (20% lighter than steel) | Fragile (susceptible to shock) Expensive (3x cost of worm gears) |