Products

MHI HASEG Worm Gear Reducer SCUH Series

The MHI HASEG Worm Gear Reducer SCUH Series is a two‑stage, horizontal‑shaft worm‑gear reducer with a hollow‑output design, engineered for applications that demand high reduction ratios, space‑saving installation, and self‑locking safety. Combining MHI HASEG’s precision Niemann tooth profile with robust materials and a compact housing, the SCUH Series delivers smooth, efficient torque transmission and easy integration into conveyor systems, rotary indexing tables, and automated assembly lines.

MHI HASEG Worm Gear Unit-2.png

 


Key Features

  • Two‑Stage Hollow‑Output Design

    Dual worm gear stages provide high reduction ratios (iₙ = 63 – 250) in a compact, horizontal footprint. The hollow output shaft allows direct mounting of driven components, eliminating couplings and saving space.

  • Precision Niemann Tooth Profile

    Concave‑convex gear flanks maximize tooth contact and oil film retention, reducing wear, minimizing friction losses, and ensuring whisper‑quiet operation under load.

  • Built‑In Self‑Locking

    Low lead‑angle worm gears in both stages prevent back‑driving, providing inherent load‑holding capability without external brakes—ideal for safety‑critical and positioning applications.

  • Durable Construction

    Hardened alloy‑steel worm shafts and high‑strength bronze worm wheels withstand radial and axial shock loads. Cast‑iron housing maintains alignment and rigidity under heavy duty.

  • Efficient Lubrication & Maintenance

    Standard splash lubrication using Klüber SYNTHESO HT or GH6 oils protects gears in both stages. Accessible oil‑level sight glasses, filler/drain ports, and external grease nipples simplify routine servicing.

  • JIS‑Compliant Dimensions

    All mounting faces, shaft fits, and tolerances meet JIS B1301‑1976 standards for straightforward integration and interchangeability.


Typical Specifications

Specification

SCUH Series

Center Distance (mm) 100, 125, 160, 200, 225, 250, 280, 320, 360, 450, 500
Reduction Ratios (iₙ) 315, 630, 1000, 1250, 1600
Max Input Speed (n₁, min⁻¹) Up to 1 800
Rated Output Torque (T₂N) Size-dependent (consult catalog)
Efficiency (η) Up to 80–85 %
Lubrication Splash (standard); forced optional
Housing Material Cast iron
Operating Temperature –10 °C to +40 °C
Protection Class IP54 (standard)

 


Applications

  • Rotary Indexing Tables: Precise, back‑drive‑free positioning.

  • Conveyor Drives: High‑ratio, space‑efficient speed reduction.

  • Automated Assembly: Compact, direct‑drive integration.

  • Packaging Machinery: Quiet, durable torque control.

  • Material Handling Equipment: Added safety with self‑locking.

For detailed torque curves, dimensional drawings, and selection support, contact Melink Automation, your trusted distributor of the MHI HASEG Worm Gear Reducer SCUH Series.

 


 

MHI HASEG Worm Gear Reducer SCUH  Series Size:100~250(Output Shaft Arrangement:Left)

 

SCUH Gear Ratio: 315~1600 MHI HASEG Worm Gear Reducer SCUH  Series Size
100 125 160 200 225 250
Output Shaft Arrangement:Left 315 SCUH100LR-315 SCUH125LR-315 SCUH160LR-315 SCUH200LR-315 SCUH225LR-315 SCUH250LR-315
630 SCUH100LR-630 SCUH125LR-630 SCUH160LR-630 SCUH200LR-630 SCUH225LR-630 SCUH250LR-630
1000 SCUH100LR-1000 SCUH125LR-1000 SCUH160LR-1000 SCUH200LR-1000 SCUH225LR-1000 SCUH250LR-1000
1250 SCUH100LR-1250 SCUH125LR-1250 SCUH160LR-1250 SCUH200LR-1250 SCUH225LR-1250 SCUH250LR-1250
1600 SCUH100LR-1600 SCUH125LR-1600 SCUH160LR-1600 SCUH200LR-1600 SCUH225LR-1600 SCUH250LR-1600

 

SCUH Gear Ratio: 315~1600 MHI HASEG Worm Gear Reducer SCUH  Series Size
100 125 160 200 225 250
Output Shaft Arrangement:Left 315 SCUH100LL-315 SCUH125LL-315 SCUH160LL-315 SCUH200LL-315 SCUH225LL-315 SCUH250LL-315
630 SCUH100LL-630 SCUH125LL-630 SCUH160LL-630 SCUH200LL-630 SCUH225LL-630 SCUH250LL-630
1000 SCUH100LL-1000 SCUH125LL-1000 SCUH160LL-1000 SCUH200LL-1000 SCUH225LL-1000 SCUH250LL-1000
1250 SCUH100LL-1250 SCUH125LL-1250 SCUH160LL-1250 SCUH200LL-1250 SCUH225LL-1250 SCUH250LL-1250
1600 SCUH100LL-1600 SCUH125LL-1600 SCUH160LL-1600 SCUH200LL-1600 SCUH225LL-1600 SCUH250LL-1600

 

SCUH Gear Ratio: 315~1600 MHI HASEG Worm Gear Reducer SCUH  Series Size
100 125 160 200 225 250
Output Shaft Arrangement:Left 315 SCUH100LB-315 SCUH125LB-315 SCUH160LB-315 SCUH200LB-315 SCUH225LB-315 SCUH250LB-315
630 SCUH100LB-630 SCUH125LB-630 SCUH160LB-630 SCUH200LB-630 SCUH225LB-630 SCUH250LB-630
1000 SCUH100LB-1000 SCUH125LB-1000 SCUH160LB-1000 SCUH200LB-1000 SCUH225LB-1000 SCUH250LB-1000
1250 SCUH100LB-1250 SCUH125LB-1250 SCUH160LB-1250 SCUH200LB-1250 SCUH225LB-1250 SCUH250LB-1250
1600 SCUH100LB-1600 SCUH125LB-1600 SCUH160LB-1600 SCUH200LB-1600 SCUH225LB-1600 SCUH250LB-1600

 

MHI HASEG Worm Gear Reducer SCUH  Series Size:100~250(Output Shaft Arrangement:Right)

 

SCUH Gear Ratio: 315~1600 MHI HASEG Worm Gear Reducer SCUH  Series Size
100 125 160 200 225 250
Output Shaft Arrangement:Right 315 SCUH100RR-315 SCUH125RR-315 SCUH160RR-315 SCUH200RR-315 SCUH225RR-315 SCUH250RR-315
630 SCUH100RR-630 SCUH125RR-630 SCUH160RR-630 SCUH200RR-630 SCUH225RR-630 SCUH250RR-630
1000 SCUH100RR-1000 SCUH125RR-1000 SCUH160RR-1000 SCUH200RR-1000 SCUH225RR-1000 SCUH250RR-1000
1250 SCUH100RR-1250 SCUH125RR-1250 SCUH160RR-1250 SCUH200RR-1250 SCUH225RR-1250 SCUH250RR-1250
1600 SCUH100RR-1600 SCUH125RR-1600 SCUH160RR-1600 SCUH200RR-1600 SCUH225RR-1600 SCUH250RR-1600

 

SCUH Gear Ratio: 315~1600 MHI HASEG Worm Gear Reducer SCUH  Series Size
100 125 160 200 225 250
Output Shaft Arrangement:Right 315 SCUH100RL-315 SCUH125RL-315 SCUH160RL-315 SCUH200RL-315 SCUH225RL-315 SCUH250RL-315
630 SCUH100RL-630 SCUH125RL-630 SCUH160RL-630 SCUH200RL-630 SCUH225RL-630 SCUH250RL-630
1000 SCUH100RL-1000 SCUH125RL-1000 SCUH160RL-1000 SCUH200RL-1000 SCUH225RL-1000 SCUH250RL-1000
1250 SCUH100RL-1250 SCUH125RL-1250 SCUH160RL-1250 SCUH200RL-1250 SCUH225RL-1250 SCUH250RL-1250
1600 SCUH100RL-1600 SCUH125RL-1600 SCUH160RL-1600 SCUH200RL-1600 SCUH225RL-1600 SCUH250RL-1600

 

SCUH Gear Ratio: 315~1600 MHI HASEG Worm Gear Reducer SCUH  Series Size
100 125 160 200 225 250
Output Shaft Arrangement:Right 315 SCUH100RB-315 SCUH125RB-315 SCUH160RB-315 SCUH200RB-315 SCUH225RB-315 SCUH250RB-315
630 SCUH100RB-630 SCUH125RB-630 SCUH160RB-630 SCUH200RB-630 SCUH225RB-630 SCUH250RB-630
1000 SCUH100RB-1000 SCUH125RB-1000 SCUH160RB-1000 SCUH200RB-1000 SCUH225RB-1000 SCUH250RB-1000
1250 SCUH100RB-1250 SCUH125RB-1250 SCUH160RB-1250 SCUH200RB-1250 SCUH225RB-1250 SCUH250RB-1250
1600 SCUH100RB-1600 SCUH125RB-1600 SCUH160RB-1600 SCUH200RB-1600 SCUH225RB-1600 SCUH250RB-1600

 


 

MHI HASEG Worm Gear Reducer SCUH  Series Size:280~500(Output Shaft Arrangement:Left)

 

SCUH Gear Ratio: 315~1600 MHI HASEG Worm Gear Reducer SCUH  Series Size
280 320 360 400 450 500
Output Shaft Arrangement:Left 315 SCUH280LR-315 SCUH320LR-315 SCUH360LR-315 SCUH400LR-315 SCUH450LR-315 SCUH500LR-315
630 SCUH280LR-630 SCUH320LR-630 SCUH360LR-630 SCUH400LR-630 SCUH450LR-630 SCUH500LR-630
1000 SCUH280LR-1000 SCUH320LR-1000 SCUH360LR-1000 SCUH400LR-1000 SCUH450LR-1000 SCUH500LR-1000
1250 SCUH280LR-1250 SCUH320LR-1250 SCUH360LR-1250 SCUH400LR-1250 SCUH450LR-1250 SCUH500LR-1250
1600 SCUH280LR-1600 SCUH320LR-1600 SCUH360LR-1600 SCUH400LR-1600 SCUH450LR-1600 SCUH500LR-1600

 

SCUH Gear Ratio: 315~1600 MHI HASEG Worm Gear Reducer SCUH  Series Size
280 320 360 400 450 500
Output Shaft Arrangement:Left 315 SCUH280LL-315 SCUH320LL-315 SCUH360LL-315 SCUH400LL-315 SCUH450LL-315 SCUH500LL-315
630 SCUH280LL-630 SCUH320LL-630 SCUH360LL-630 SCUH400LL-630 SCUH450LL-630 SCUH500LL-630
1000 SCUH280LL-1000 SCUH320LL-1000 SCUH360LL-1000 SCUH400LL-1000 SCUH450LL-1000 SCUH500LL-1000
1250 SCUH280LL-1250 SCUH320LL-1250 SCUH360LL-1250 SCUH400LL-1250 SCUH450LL-1250 SCUH500LL-1250
1600 SCUH280LL-1600 SCUH320LL-1600 SCUH360LL-1600 SCUH400LL-1600 SCUH450LL-1600 SCUH500LL-1600

 

SCUH Gear Ratio: 315~1600 MHI HASEG Worm Gear Reducer SCUH  Series Size
280 320 360 400 450 500
Output Shaft Arrangement:Left 315 SCUH280LB-315 SCUH320LB-315 SCUH360LB-315 SCUH400LB-315 SCUH450LB-315 SCUH500LB-315
630 SCUH280LB-630 SCUH320LB-630 SCUH360LB-630 SCUH400LB-630 SCUH450LB-630 SCUH500LB-630
1000 SCUH280LB-1000 SCUH320LB-1000 SCUH360LB-1000 SCUH400LB-1000 SCUH450LB-1000 SCUH500LB-1000
1250 SCUH280LB-1250 SCUH320LB-1250 SCUH360LB-1250 SCUH400LB-1250 SCUH450LB-1250 SCUH500LB-1250
1600 SCUH280LB-1600 SCUH320LB-1600 SCUH360LB-1600 SCUH400LB-1600 SCUH450LB-1600 SCUH500LB-1600

 

MHI HASEG Worm Gear Reducer SCUH  Series Size:280~500(Output Shaft Arrangement:Right)

 

SCUH Gear Ratio: 315~1600 MHI HASEG Worm Gear Reducer SCUH  Series Size
280 320 360 400 450 500
Output Shaft Arrangement:Right 315 SCUH280RR-315 SCUH320RR-315 SCUH360RR-315 SCUH400RR-315 SCUH450RR-315 SCUH500RR-315
630 SCUH280RR-630 SCUH320RR-630 SCUH360RR-630 SCUH400RR-630 SCUH450RR-630 SCUH500RR-630
1000 SCUH280RR-1000 SCUH320RR-1000 SCUH360RR-1000 SCUH400RR-1000 SCUH450RR-1000 SCUH500RR-1000
1250 SCUH280RR-1250 SCUH320RR-1250 SCUH360RR-1250 SCUH400RR-1250 SCUH450RR-1250 SCUH500RR-1250
1600 SCUH280RR-1600 SCUH320RR-1600 SCUH360RR-1600 SCUH400RR-1600 SCUH450RR-1600 SCUH500RR-1600

 

SCUH Gear Ratio: 315~1600 MHI HASEG Worm Gear Reducer SCUH  Series Size
280 320 360 400 450 500
Output Shaft Arrangement:Right 315 SCUH280RL-315 SCUH320RL-315 SCUH360RL-315 SCUH400RL-315 SCUH450RL-315 SCUH500RL-315
630 SCUH280RL-630 SCUH320RL-630 SCUH360RL-630 SCUH400RL-630 SCUH450RL-630 SCUH500RL-630
1000 SCUH280RL-1000 SCUH320RL-1000 SCUH360RL-1000 SCUH400RL-1000 SCUH450RL-1000 SCUH500RL-1000
1250 SCUH280RL-1250 SCUH320RL-1250 SCUH360RL-1250 SCUH400RL-1250 SCUH450RL-1250 SCUH500RL-1250
1600 SCUH280RL-1600 SCUH320RL-1600 SCUH360RL-1600 SCUH400RL-1600 SCUH450RL-1600 SCUH500RL-1600

 

SCUH Gear Ratio: 315~1600 MHI HASEG Worm Gear Reducer SCUH  Series Size
280 320 360 400 450 500
Output Shaft Arrangement:Right 315 SCUH280RB-315 SCUH320RB-315 SCUH360RB-315 SCUH400RB-315 SCUH450RB-315 SCUH500RB-315
630 SCUH280RB-630 SCUH320RB-630 SCUH360RB-630 SCUH400RB-630 SCUH450RB-630 SCUH500RB-630
1000 SCUH280RB-1000 SCUH320RB-1000 SCUH360RB-1000 SCUH400RB-1000 SCUH450RB-1000 SCUH500RB-1000
1250 SCUH280RB-1250 SCUH320RB-1250 SCUH360RB-1250 SCUH400RB-1250 SCUH450RB-1250 SCUH500RB-1250
1600 SCUH280RB-1600 SCUH320RB-1600 SCUH360RB-1600 SCUH400RB-1600 SCUH450RB-1600 SCUH500RB-1600

 

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  • The MHI HASEG Worm Gear Reducer SCUH100L-310 offers high-performance speed reduction with a substantial 310:1 ratio, making it ideal for demanding industrial applications. Its durable construction, efficiency, and compact design ensure reliable operation and minimal maintenance, supported by MHI HASEG’s expertise and extensive experience.

  • The MHI HASEG Worm Gear Reducer SCUH100R-310 is a robust and efficient solution for various industrial applications requiring high torque and reliable performance. Its durable construction, maintenance-free design, and versatile application range make it an ideal choice for industries such as manufacturing, material handling, and mining. With optimized efficiency and low noise operation, it ensures enhanced productivity and energy savings.