1. Two High-Capacity Worm Gear Stages : Both first and second stage wheels are made of ZCuSn10P1 tin bronze, and worms are made of 40Cr or 20CrMnTi, case-hardened to HRC50-55 with ground tooth profiles. The total transmission efficiency is optimized for practical use, with excellent impact and wear resistance.
2. Ultra-Wide Reduction Ratio Range : Single-stage ratios start from 5:1; with two stages in series, total ratios from 100:1 up to 3600:1 or higher are achievable. This suits low-speed heavy-load or precise positioning applications, with output speeds below 0.1 rpm.
3. Dual Mechanical Self-Locking : Each worm stage provides inherent back-self-locking based on friction angle characteristics. The double-stage configuration offers over 50% higher reliability against reverse rotation compared to single-stage units, ideal for hoisting, holding, and safety-critical anti-rollback applications.
4. Compact Interstage Coupling & Heavy-Duty Bearings : An optimized flange-type interstage connection minimizes axial length. Input, intermediate, and output shafts are supported by heavy-duty tapered roller or angular contact bearings, providing excellent rigidity and capacity for high radial and axial loads.
5. High-Integrity Sealing & Long-Life Lubrication : All shaft ends feature double-lipped FKM oil seals, and housing mating surfaces are sealed with liquid gasket, achieving IP65 protection. Pre-filled with fully synthetic extreme-pressure gear oil (e.g., ISO VG320) that typically requires no change for up to 10,000 hours or 2 years under normal conditions.
6. Multiple Mounting Styles & Accessory Expansion : Supports all M1 through M6 mounting orientations. Optional accessories include backstops, cooling fans, forced lubrication pumps, and encoder interfaces to meet demanding applications with frequent starts/stops, reversing, or high ambient temperatures.