1. Two High-Capacity Spiral Bevel Gear Stages : Both stages use Gleason-type equal-height teeth. Materials: 20CrMnTi or 17CrNiMo6, case-hardened to HRC58-62, ground to grade 5-6 accuracy with computer-optimized contact patterns. Load capacity is more than 40% higher than straight bevel gears.
2. Wide Ratio Range & High Output Torque : Total reduction ratio covers 13.6:1 to 115.5:1 (e.g., 3.7:1 × 3.7:1 ≈ 13.69:1; 10.8:1 × 10.7:1 ≈ 115.56:1). Rated output torque from 2350 N·m to 22,000 N·m – suitable for heavy-duty machinery demanding high load capacity.
3. High Efficiency & Extended Fatigue Life : Single-stage efficiency ≥93%; two-stage overall efficiency ≥85% (depending on ratio and lubrication). Gear teeth are shot-peened and specially phosphated, increasing contact fatigue life by more than 100% with a design life of at least 20,000 hours.
4. Multiple Shaft Arrangements & Mounting Styles : Input and output shafts can be arranged parallel (axes of both stages parallel) or perpendicular (180° total turn). Supports M1 to M6 mounting orientations to fit complex spatial layouts.
5. Heavy-Duty Bearings & Reinforced Housing : All shafts are equipped with large-sized tapered roller or spherical roller bearings. The housing features thickened walls and ribs optimized by FEA, achieving 50% higher torsional stiffness than standard two-stage boxes, with excellent impact resistance.
6. Reliable Sealing & Optional Forced Lubrication/Cooling : Standard double-lipped FKM oil seals with labyrinth dust protection achieve IP65. Due to high torque and heat generation, forced lubrication station (including oil cooler, filter, pressure switch) is standard or optional on most models to ensure stable oil temperature under continuous heavy load. Pre-filled with synthetic extreme-pressure gear oil (ISO VG460 or 680).