Power Transmission Products Power Transmission Products

  • Gear Box

Worm Reducer (Worm Power Drive® & Troi Drive)

There are two types of worm gears, cylindrical type (Worm Power Drive) and drum-shaped type (Troi Drive).

Worm Reducer (Worm Power Drive & Troi Drive)

Accommodates a variety of applications with the extensive lineup.

Products News

Product Lineup

Troidal Worm (Drum-Shaped Type)

Product Types / Features

Cylindrical Worm

Product Types / Features

  • EWJ/EWJM Series

    EWJ/EWJM Series

    EWJ/EWJM Series

    • Energy-saving type with improved performance and efficiency
    • Foot mount and solid output shaft type
    • Small size: Center Distance 25-70mm
    • Installation freedom for all sizes
  • SWJ・SWJM Series

    SWJ・SWJM Series

    SWJ・SWJM Series

    • Environmental responsiveness through improved performance and efficiency
    • Hollow shaft type, on-shaft and flange mounting
    • Small size: Center Distance 25-70mm
    • Installation freedom for all sizes
  • EW・EWM Series

    EW・EWM Series

    EW/EWM Series

    Well-balanced in terms of performance, efficiency and cost, while achieving high precision and compactness. Foot mount is standard and both solid and hollow output shafts are available. The solid shaft type is ideal for connections with couplings, chains and belts.

  • SW/SWM Series

    SW/SWM Series

    SW/SWM Series

    With the same well-balanced worm as the EW series, a dedicated case for on-shaft and flange mounting is used, contributing to making your equipment more simplified. Both solid and hollow output shafts are available.

  • TERUS Series

    TERUS Series ®

    TERUS Series

    Helical worm motors combining worm reducers with gear motors. Provides right-angle and high reduction for equipment requiring high strength, quiet operation, and compact space requirements.

  • TM Series

    TM Series

    TM Series

    Discontinued TM and TM-GCE Series Worm Power Drives at the end of June, 2016

    Successor models: EWJ and EWJM Series Worm Power Drives

Product Specifications

Troi Drive EW/
EWM
SW/
SWM
EWJ/
EWJM
SWJ/
SWJM
Drum-Shaped Worm Cylindrical Worm Cylindrical Worm Cylindrical Worm Cylindrical Worm
Mid-Size to
Large Size
125mm to 315mm
Small-Size to
Mid-Size
80mm to 200mm
Small-Size to
Mid-Size
80mm to 200mm
Small-Size
25mm to 70mm
Small-Size
25mm to 70mm
Reduction Ratio: Single Reduction
1/10
to
1/60
1/10
to
1/60
1/10
to
1/60
1/10
to
1/60
1/10
to
1/60
Reduction Ratio: High Reduction
1/100
to
1/3600
1/100
to
1/3600
1/100
to
1/3600
1/100
to
1/3600
-
Torque(N·m)
2700
to
47000
300
to
5300
300
to
5300
12
to
300
12
to
300

Features

Worm reducers meeting diversified needs

A complete lineup from small to large sizes

Two Choices of Worm Gears

You can make the most appropriate choice from between high-performance, drum-shaped troidal worm gears and well-balanced, cylindrical worm gears.

Two Installation Options

Two types of cases are available: foot mounting type & on-shaft and flange mounting type.

Product Inquiries

PAGE TOP