UNIVERSAL SI Worm Gear Units

High Power Density Worm Gear Units

  • Power: 0.16 HP - 5.4 HP (0.12 kW – 4.0 kW)
  • Torque: 186 lb-inch - 3,779 lb-in (21 Nm – 427 Nm)
  • High overload capacity for safe operation
  • Highly configurable
  • Low space requirement due to compact design
Product Configurator

High Power in a Compact Design

UNIVERSAL SI worm gear units provide significant installation space advantages compared to other gear unit types. Their streamlined design delivers high power density in a compact footprint, along with quiet torque transmission for smooth operation.

The worm gear design enables high ratios in a small space while offering self-locking characteristics that enhance operational safety.

Product Versions

  • Sizes: 5
  • Ratio: 5.00 – 3000.00
  • Solid and hollow shaft options available
  • Shaft-, flange-, and foot-mounted versions available
  • Angled gear unit designs available
  • IEC version available
  • Optional 10:1 helical pre-stage and double worm gear unit configuration
  • Optional reinforced output side
  • Aluminum housing option available
  • Broad range of modular system options

Product Characteristics

  • High overload capacity for reliable operation and long service life
  • Lightweight design with optional aluminum housing
  • Quiet operation
  • Flexible use across a wide range of applications

B1000 - Manual with installation instructions – Gear units

B1000 - Manual with installation instructions – Gear units
  • Download English
Documentation Details

G2122 - Catalog – ATEX Explosion Protection

G2122 - Catalog – ATEX Explosion Protection
  • Download English
Documentation Details

G1000 - Catalog – Gear units – Constant speed drives

G1000 - Catalog – Gear units – Constant speed drives
  • Download US-English
  • Download English
Documentation Details

G5000 - Catalog – Gearmotors with IE5+ energy efficiency

G5000 - Catalog – Gearmotors with IE5+ energy efficiency
  • Download English
Documentation Details

C411000 - Declaration of Conformity (ATEX) – Gear units (2D+2G)

C411000 - Declaration of Conformity (ATEX) – Gear units (2D+2G)
  • Download English
Documentation Details

C412000 - Declaration of Conformity (ATEX) – Gear units (3D+3G)

C412000 - Declaration of Conformity (ATEX) – Gear units (3D+3G)
  • Download English
Documentation Details

S9098

S9098
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Documentation Details

PL1035 - Spare parts list – UNIVERSAL SI, SMI worm gear units

PL1035 - Spare parts list – UNIVERSAL SI, SMI worm gear units
  • Download English
Documentation Details

NORDCON

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Spare Parts and Spare Parts Management

Fast delivery of spare parts
Failures and technical problems cost time and money. That's why NORD offers 24/7/365 emergency breakdown services for spare parts, replacement drives, and technical support. NORD experts will work with you to get your machines back up and running as quickly as possible.

Spare Parts

Construction and Engineering

With over 20,000,000 different product configurations from NORD's modular system, we can work to accommodate almost every customer application. However, too much choice can result in an information overload. Whether online or in person, NORD will work with you from start to finish to find the best possible drive solution for you.

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Digital Services and Self Services

The quick answer to all questions regarding our service. Easily find the documentation and spare parts for your order with your NORD product ID. Contact our service or sales department. Or log into our myNORD customer portal, design NORD products yourself, select them and order them.

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Product Variants and Applications

NORD provides configurable drive solutions from a single source. Each component of the modular product range can be combined with motors, gear units, drive electronics, and accessories. With application-focused guidance, NORD helps configure the right drive solution for your requirements. Explore the possibilities available with this product range.

  • Worm Gear Units

    Worm gear units are ideal for clocked applications with low speed. In the final packaging, they are primarily used in strapping machines or roller conveyors.

    • Precise running for high operational reliability
    • Ratio of up to 3.000:1 for versatile application-specific designs
    • Low space requirements thanks to compact design
    • Self-locking increases safety

  • Worm Gear Units

    Thanks to their high power density and compact design, worm gear units are a tailor-made drive solution for intralogistics applications. Further advantages:

    • Low maintenance thanks to life-long lubrication
    • Flexible use due to universal mounting options and modularity
    • Centralised and decentralised control via frequency inverters from NORD

Further product information

Energy Efficiency and TCO Consulting

Save resources and increase efficiency: consult with NORD and configure an energy-efficient drive solution that fits your needs.

Energy Efficiency and TCO

Modernization and Extension

Drive modernization is used to update your drives to newer technology and increase system efficiency, resulting in a reduced carbon footprint. If you want to benefit from technical progress, bring your drive technology up to date with NORD! Throughout every step of the process, you'll have a competent and experienced partner by your side who knows what is important.

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