MHI HASEG Worm Gear Reducer SEHA Series

The MHI HASEG Worm Gear Reducer SEHA Series is a two‑stage, horizontal‐worm‐shaft reducer engineered for applications requiring high overall reduction ratios in a compact footprint. Leveraging MHI HASEG’s advanced Niemann tooth profile and precision manufacturing, the SEHA Series delivers reliable torque transmission, extended service life, and simplified maintenance.

Key Features

1. Two‑Stage Niemann Tooth Geometry
   
   

   • Combines two worm‑and‑wheel stages to achieve reduction ratios from 63 up to 250 in a single unit.

   • Optimized tooth flank curvature for uniform load distribution, minimizing wear and maximizing efficiency.
      

2. Broad Size & Ratio Range
   
   

   • Center distances: 125 mm through 250 mm (sizes 125–250) and 280 mm through 400 mm (sizes 280–400).

   • Standard reduction ratios (iₙ): 63, 80, 125, 160, 200, 250.
      

3. Robust Construction
   
   

   • Worm shafts: high‑strength alloy steel, ground and hardened.

   • Worm wheels: high‑grade bronze for excellent wear resistance.

   • Housing machined to JIS B1301‑1976 dimensional and tolerance standards (W1 h9/N9, W2 JS9).
      

4. Efficient Lubrication System
   
   

   • Standard: splash (immersion) lubrication with KLÜBER “SYNTHESO HT” or “KLÜBER SYNTH GH6” oils.

   • Optional: forced‑lubrication for high‑speed or high‑load applications.

   • Oil‑level gauges and air‑vent plugs facilitate proper fill and inspection.
      

5. Integrated Maintenance Aids
   
   

   • Grease nipples on bearings allow relubrication without disassembly.

   • Oil filler and drain ports positioned for easy access.

   • Oil‑level sight glasses on both stages ensure correct lubricant volume.
      

6. Self‑Locking Capability
   
   

   • Low lead angles in each worm stage provide back‑driving prevention, ensuring the output shaft holds position under load without additional brakes.
     
     

Typical Specifications

Applications

• Heavy‑Duty Conveyors: High reduction for slow, controlled belt speeds.

• Packaging & Printing: Precise indexing with minimal backlash.

• Material Handling & Cranes: Self‑locking provides holding capability.

• Mixers & Agitators: Robust design tolerates shock loads.

• Food & Beverage Equipment: Contained lubrication minimizes contamination risk.
  
  

Why Choose the SEHA Series?

• High Reduction in Compact Size: Two‑stage design allows large ratios without excessive length.

• Durability & Low Maintenance: Niemann tooth profile and quality materials ensure long service life with predictable relubrication intervals.

• Safety & Reliability: Self‑locking prevents unintended motion; sturdy housing withstands harsh industrial environments.

• Global Support: Comprehensive manuals, detailed selection guides, and local expert assistance through Melink Automation.
  
  

For detailed torque tables, dimensional drawings, and selection support, please refer to the MHI HASEG catalog or contact Melink Automation.

  MHI HASEG Worm Gear Reducer SEHA  Series Size：125~250（Output Shaft Arrangement：Left）

MHI HASEG Worm Gear Reducer SEHA  Series Size：125~250（Output Shaft Arrangement：Right）

MHI HASEG Worm Gear Reducer SEHA  Series Size：280~400（Output Shaft Arrangement：Left）

MHI HASEG Worm Gear Reducer SEHA  Series Size：280~400（Output Shaft Arrangement：Right）