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Home > Products > Niemann Worm Gear Units > MHI HASEG Worm Gear Reducer SUHA Series

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MHI HASEG Worm Gear Reducer SUHA Series

The MHI HASEG Worm Gear Reducer SUHA Series is a compact, single-stage worm gear reducer with a horizontal shaft configuration, designed specifically for lightweight power transmission needs. It offers high mechanical efficiency, minimal noise, and reliable self-locking capability—ideal for compact equipment and small-scale industrial automation systems.

MHI HASEG Worm Gear Unit-2.png

 

Key Features

  1. Space-Saving Horizontal Shaft Design

    The SUHA Series features a small, horizontal input/output shaft layout that allows easy installation in confined spaces. Its compact structure is perfect for equipment requiring modest torque in a streamlined form factor.

  2. High-Efficiency Niemann Tooth Profile

    Precision-machined concave-convex tooth flanks (Niemann profile) enhance tooth contact and oil retention, ensuring smooth torque transmission, reduced friction, and longer service life even at small sizes.

  3. Light-Duty Torque with Self-Locking

    Despite its compact size, the SUHA Series provides sufficient torque and a naturally self-locking worm mechanism that prevents reverse motion—ideal for positioning or vertical load applications.

  4. Low-Noise, Low-Vibration Performance

    Carefully controlled gear mesh and tooth geometry minimize operating sound and mechanical vibration, supporting smooth operation even in sensitive environments like labs or cleanrooms.

  5. Easy Lubrication & Service

    Equipped with splash lubrication using Klüber synthetic oil and maintenance-friendly grease fittings, the SUHA Series is designed for simplified servicing and long-term reliability.

  6. JIS Standard Compliance

    All shaft fits, housing dimensions, and tolerances conform to JIS B1301-1976 standards, ensuring compatibility and ease of replacement or upgrade.

Typical Specifications

 

Specification

 

SUHA Series

 
Shaft Orientation Horizontal
Center Distance (mm) 65, 80, 99, 125, 160, 200, 225, 250, 280, 320, 360, 400
Reduction Ratios (iₙ) 5, 6.3, 8, 10, 12.5, 16, 20, 25, 31.5, 40, 50
Rated Output Torque (T₂N, Nm) 180 – 750 Nm (size-dependent)
Max Input Speed (n₁, min⁻¹) Up to 1800
Efficiency (η) Up to 90%
Lubrication Splash lubrication (Klüber oil)
Housing Material Cast iron
Operating Temperature –10 °C to +40 °C
Protection Class IP54 (standard)
 

Applications

  • Compact Machinery: Ideal for equipment with limited installation space.

  • Light-Duty Conveyors: Precise, efficient torque for small systems.

  • Positioning Equipment: Self-locking ensures stable stopping points.

  • Medical & Laboratory Devices: Quiet, low-vibration operation.

  • Custom Automation: Lightweight and flexible for design-specific needs.

Why Choose the SUHA Series?

 

  • Ultra-Compact & Lightweight: Ideal for applications with space and weight constraints.

  • Durable & Efficient: Niemann tooth profile ensures long-term smooth operation.

  • Reliable Safety: Built-in self-locking for secure load handling.

  • Simple Maintenance: Grease nipples and splash lubrication for easy servicing.

  • Backed by Experts: Supported by Melink Automation and MHI HASEG’s extensive technical network.

For sizing assistance, CAD drawings, or technical specifications, please contact Melink Automation, your distributor of the MHI HASEG Worm Gear Reducer SUHA Series.

 

 

MHI HASEG Worm Gear Reducer SUHA  Series Size：65・80・99（Output Shaft Arrangement：Left）

 

SUHA Gear Ratio: 5~50 MHI HASEG Worm Gear Reducer SUHA  Series Size
65 80 99
Output Shaft Arrangement：Left 5 SUHA65L-5 SUHA80L-5 SUHA99L-5
6.3 SUHA65L-6.3 SUHA80L-6.3 SUHA99L-6.3
8 SUHA65L-8 SUHA80L-8 SUHA99L-8
10 SUHA65L-10 SUHA80L-10 SUHA99L-10
12.5 SUHA65L-12.5 SUHA80L-12.5 SUHA99L-12.5
16 SUHA65L-16 SUHA80L-16 SUHA99L-16
20 SUHA65L-20 SUHA80L-20 SUHA99L-20
25 SUHA65L-25 SUHA80L-25 SUHA99L-25
31.5 SUHA65L-31.5 SUHA80L-31.5 SUHA99L-31.5
40 SUHA65L-40 SUHA80L-40 SUHA99L-40
50 SUHA65L-50 SUHA80L-50 SUHA99L-50

 

MHI HASEG Worm Gear Reducer SUHA  Series Size：65・80・99（Output Shaft Arrangement：Right）

 

SUHA Gear Ratio: 5~50 MHI HASEG Worm Gear Reducer SUHA  Series Size
65 80 99
Output Shaft Arrangement：Left 5 SUHA65R-5 SUHA80R-5 SUHA99R-5
6.3 SUHA65R-6.3 SUHA80R-6.3 SUHA99R-6.3
8 SUHA65R-8 SUHA80R-8 SUHA99R-8
10 SUHA65R-10 SUHA80R-10 SUHA99R-10
12.5 SUHA65R-12.5 SUHA80R-12.5 SUHA99R-12.5
16 SUHA65R-16 SUHA80R-16 SUHA99R-16
20 SUHA65R-20 SUHA80R-20 SUHA99R-20
25 SUHA65R-25 SUHA80R-25 SUHA99R-25
31.5 SUHA65R-31.5 SUHA80R-31.5 SUHA99R-31.5
40 SUHA65R-40 SUHA80R-40 SUHA99R-40
50 SUHA65R-50 SUHA80R-50 SUHA99R-50

 

 

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

 

SUHA Gear Ratio: 5~50 MHI HASEG Worm Gear Reducer SUHA  Series Size
100 125 160 200 225 250
Output Shaft Arrangement：Left 5 SUHA100L-5 SUHA125L-5 SUHA160L-5 SUHA200L-5 SUHA225L-5 SUHA250L-5
6.3 SUHA100L-6.3 SUHA125L-6.3 SUHA160L-6.3 SUHA200L-6.3 SUHA225L-6.3 SUHA250L-6.3
8 SUHA100L-8 SUHA125L-8 SUHA160L-8 SUHA200L-8 SUHA225L-8 SUHA250L-8
10 SUHA100L-10 SUHA125L-10 SUHA160L-10 SUHA200L-10 SUHA225L-10 SUHA250L-10
12.5 SUHA100L-12.5 SUHA125L-12.5 SUHA160L-12.5 SUHA200L-12.5 SUHA225L-12.5 SUHA250L-12.5
16 SUHA100L-16 SUHA125L-16 SUHA160L-16 SUHA200L-16 SUHA225L-16 SUHA250L-16
20 SUHA100L-20 SUHA125L-20 SUHA160L-20 SUHA200L-20 SUHA225L-20 SUHA250L-20
25 SUHA100L-25 SUHA125L-25 SUHA160L-25 SUHA200L-25 SUHA225L-25 SUHA250L-25
31.5 SUHA100L-31.5 SUHA125L-31.5 SUHA160L-31.5 SUHA200L-31.5 SUHA225L-31.5 SUHA250L-31.5
40 SUHA100L-40 SUHA125L-40 SUHA160L-40 SUHA200L-40 SUHA225L-40 SUHA250L-40
50 SUHA100L-50 SUHA125L-50 SUHA160L-50 SUHA200L-50 SUHA225L-50 SUHA250L-50

 

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

 

SUHA Gear Ratio: 5~50 MHI HASEG Worm Gear Reducer SUHA  Series Size
100 125 160 200 225 250
Output Shaft Arrangement：Right 5 SUHA100R-5 SUHA125R-5 SUHA160R-5 SUHA200R-5 SUHA225R-5 SUHA250R-5
6.3 SUHA100R-6.3 SUHA125R-6.3 SUHA160R-6.3 SUHA200R-6.3 SUHA225R-6.3 SUHA250R-6.3
8 SUHA100R-8 SUHA125R-8 SUHA160R-8 SUHA200R-8 SUHA225R-8 SUHA250R-8
10 SUHA100R-10 SUHA125R-10 SUHA160R-10 SUHA200R-10 SUHA225R-10 SUHA250R-10
12.5 SUHA100R-12.5 SUHA125R-12.5 SUHA160R-12.5 SUHA200R-12.5 SUHA225R-12.5 SUHA250R-12.5
16 SUHA100R-16 SUHA125R-16 SUHA160R-16 SUHA200R-16 SUHA225R-16 SUHA250R-16
20 SUHA100R-20 SUHA125R-20 SUHA160R-20 SUHA200R-20 SUHA225R-20 SUHA250R-20
25 SUHA100R-25 SUHA125R-25 SUHA160R-25 SUHA200R-25 SUHA225R-25 SUHA250R-25
31.5 SUHA100R-31.5 SUHA125R-31.5 SUHA160R-31.5 SUHA200R-31.5 SUHA225R-31.5 SUHA250R-31.5
40 SUHA100R-40 SUHA125R-40 SUHA160R-40 SUHA200R-40 SUHA225R-40 SUHA250R-40
50 SUHA100R-50 SUHA125R-50 SUHA160R-50 SUHA200R-50 SUHA225R-50 SUHA250R-50

 

 

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

 

SUHA Gear Ratio: 5~50 MHI HASEG Worm Gear Reducer SUHA  Series Size
280 320 360 400
Output Shaft Arrangement：Left 5 SUHA280L-5 SUHA320L-5 SUHA360L-5 SUHA400L-5
6.3 SUHA280L-6.3 SUHA320L-6.3 SUHA360L-6.3 SUHA400L-6.3
8 SUHA280L-8 SUHA320L-8 SUHA360L-8 SUHA400L-8
10 SUHA280L-10 SUHA320L-10 SUHA360L-10 SUHA400L-10
12.5 SUHA280L-12.5 SUHA320L-12.5 SUHA360L-12.5 SUHA400L-12.5
16 SUHA280L-16 SUHA320L-16 SUHA360L-16 SUHA400L-16
20 SUHA280L-20 SUHA320L-20 SUHA360L-20 SUHA400L-20
25 SUHA280L-25 SUHA320L-25 SUHA360L-25 SUHA400L-25
31.5 SUHA280L-31.5 SUHA320L-31.5 SUHA360L-31.5 SUHA400L-31.5
40 SUHA280L-40 SUHA320L-40 SUHA360L-40 SUHA400L-40
50 SUHA280L-50 SUHA320L-50 SUHA360L-50 SUHA400L-50

 

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

 

SUHA Gear Ratio: 5~50 MHI HASEG Worm Gear Reducer SUHA  Series Size
280 320 360 400
Output Shaft Arrangement：Right 5 SUHA280R-5 SUHA320R-5 SUHA360R-5 SUHA400R-5
6.3 SUHA280R-6.3 SUHA320R-6.3 SUHA360R-6.3 SUHA400R-6.3
8 SUHA280R-8 SUHA320R-8 SUHA360R-8 SUHA400R-8
10 SUHA280R-10 SUHA320R-10 SUHA360R-10 SUHA400R-10
12.5 SUHA280R-12.5 SUHA320R-12.5 SUHA360R-12.5 SUHA400R-12.5
16 SUHA280R-16 SUHA320R-16 SUHA360R-16 SUHA400R-16
20 SUHA280R-20 SUHA320R-20 SUHA360R-20 SUHA400R-20
25 SUHA280R-25 SUHA320R-25 SUHA360R-25 SUHA400R-25
31.5 SUHA280R-31.5 SUHA320R-31.5 SUHA360R-31.5 SUHA400R-31.5
40 SUHA280R-40 SUHA320R-40 SUHA360R-40 SUHA400R-40
50 SUHA280R-50 SUHA320R-50 SUHA360R-50 SUHA400R-50

 
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  • The MHI HASEG Worm Gear Reducer SUHA100R-20 stands out for its ability to deliver powerful and efficient torque conversion in demanding industrial settings. Designed with a gear ratio of 20:1, the SUHA100R-20 is engineered to significantly reduce input speed while boosting output torque, making it an excellent choice for applications that require robust performance and precision.

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  • The MHI HASEG Worm Gear Reducer SUHA100R-16 is designed to offer exceptional performance for demanding industrial applications that require efficient speed reduction and increased torque. Featuring a gear ratio of 16:1, the SUHA100R-16 provides substantial reduction in input speed while enhancing torque, making it suitable for various machinery that demands high power transmission. The SUHA100R-16 excels in delivering reliable and durable performance across a broad spectrum of industries.

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  • The MHI HASEG Worm Gear Reducer SUHA100R-12.5 is engineered to deliver superior performance in demanding industrial applications requiring precise speed reduction and increased torque. With its 12.5:1 gear ratio, this model provides efficient torque conversion and reliable operation, making it suitable for a wide range of machinery. The SUHA100R-12.5 is built to meet the needs of high-performance environments where durability and efficiency are critical.

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  • The MHI HASEG Worm Gear Reducer SUHA100R-10 is designed to meet the demands of high-performance industrial applications with precision and reliability. Featuring a 10:1 gear ratio, this reducer provides effective speed reduction and robust torque output, making it ideal for a variety of machinery and equipment. The SUHA100R-10 is engineered to offer a balance of efficiency, durability, and flexibility, ensuring it performs optimally in diverse operational environments.

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  • The MHI HASEG Worm Gear Reducer SUHA100R-8 is designed for high-demand industrial applications where reliable speed reduction and substantial torque are critical. With an 8:1 gear ratio, this reducer ensures precise speed control and robust performance, making it suitable for a wide range of sophisticated machinery and equipment. The SUHA100R-8 stands out for its combination of efficiency, durability, and versatility.

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