STM Gearbox Distributor

STM, Spa is headquartered in Milan, Italy. With its 19 branches and its wide sales network, the STM team can be found in 78 countries on 5 continents.

STM designs and manufactures a wide range of Gearboxes (Worm, Inline Helical, Bevel Helical and Planetary Gearboxes), Geared Motors, Mechanical Variators, Electric Motors and Inverters. STM creates innovative and reliable solutions for controlling and powering transmission in the industry.

Industrial-Standard Offerings

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Worm Gearbox R

Worm Gearbox R

Right Angle Worm Gearbox

  • IEC motor adapters
  • Ratio 7 to 100
  • Torque: up to 2103Nm
  • Input Power: 0.01 to 31.61kW

Options:

  • Free Input Shaft
  • Foot, Shaft or Flange Mount
  • Integral Torque Limiter
  • Plug in shafts
  • Higher ratios w/ double gearbox
  • 12 physical sizes
Worm Gearbox U

Worm Gearbox U

Right Angle Worm Gearbox

  • IEC motor adapters
  • Ratio 7 to 100
  • Torque: up to 638Nm
  • Input Power: 0.04 to 10.01kW
  • Universal Foot Mounting

Options:

  • Flange Mounting
  • Torque Arm
  • Plug in shafts
  • Higher ratios w/ double gearbox
  • 6 physical sizes
Helical Worm Gearbox CR

Helical Worm Gearbox CR

IEC Motor Adapters

  • Ratio 43 to 618.2
  • Torque: Up to 898
  • Input Power: 0.01 to 2.62kW

Options:

  • Foot, Shaft or Flange Mount
  • Torque Arm
  • Integral Torque Limiter
  • Plug in Shafts
  • 10 physical sizes
Worm Gearbox W

Worm Gearbox W

Import Universal Worm Gearbox

  • IEC Motor Adapters
  • Ratio 7.5 to 100
  • Torque: up to 1550Nm
  • Input Power: 0.04 to 25.5kW
  • Universal Foot Mounting

Options:

  • Free Input Shaft
  • Double Input shaft
  • Flange, Torque Arm Mounting
  • Plug in Shafts
  • 10 physical Sizes
Mechanical Speed Variator WMF

Mechanical Speed Variator WMF

  • Input Power: 0.18 to 7.5kW
  • IEC B5 Motor Mounting
  • Torque: up to 118Nm
  • Foot or Flange Mounted

Options:

  • Gravitational Indicators

High Tech-Motion

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Single Stage Helical Gearbox AR/1

Single Stage Helical Gearbox AR/1

Free Input Shaft (AR)

  • Ratio 1.2 to 7.5
  • Input Power: 0.47 to 54.1kW
  • Torque: up to 600Nm

Options:

  • Integrally Connected IEC Motor (AC)
  • IEC motor Adapter (AM)
  • Free Input Shaft
  • Foot, Flange or Face Mounting
  • 6 physical sizes
Inline Helical Gearbox A

Inline Helical Gearbox A

Helical Gearbox

  • 2 or 3 stage reduction
  • Ratio 2.4 to 301.2
  • Input Power: 0.03 to 88.97kW
  • Torque: up to 4300Nm

Options:

  • Integrally Connected IEC Motor (AC)
  • IEC motor Adapter (AM)
  • Free Input Shaft
  • Foot, Flange or Face Mounting
  • 13 physical sizes
Shaft Mounting Gearbox PT

Shaft Mounting Gearbox PT

  • 1 or 2 stage reduction
  • Ratio 2.62 to 58.1
  • Torque: 360 to 8820Nm
  • Output Shaft Options:
  • Shaft w/ keyway
  • Hollow Shaft w/ shrink disc
  • Splined Output Shaft
  • Splined Hollow Shaft
  • Broached Flange
  • Quick Locking

Options:

  • Backstop
  • Tension Arm Mounting
Parallel & Shaft Mounting Gearbox P

Parallel & Shaft Mounting Gearbox P

2 stage reduction

  • Ratio 2.6 to 278.1
  • Input Power: 0.17 to 30.32
  • Torque: up to 2300Nm
  • Output Shaft Options:
  • Shaft w/ keyway
  • Hollow Shaft w/ shrink disc
  • Splined Output Shaft
  • Splined Hollow Shaft
  • Broached Flange
  • Quick Locking

Options:

  • Long center distance variant
  • Output Flange
  • Rubber Buffer
Bevel Helical Gearbox O

Bevel Helical Gearbox O

  • 2 stage reduction
  • Ratio 5.2 to 390.0
  • Torque: up to 10500Nm
  • Output Shaft Options:
  • Shaft w/ keyway
  • Hollow Shaft w/ shrink disc
  • Splined Output Shaft
  • Splined Hollow Shaft
  • Broached Flange
  • Quick Locking

Options:

  • Foot, Face or Flange Mounting
  • Free input Shaft (OR)
  • Integrally connected motor (OC)
  • IEC Motor Adapter (OM)
  • Backstop
  • Torque arm
  • 14 physical sizes
Skew Bevel Helical Gearbox SM

Skew Bevel Helical Gearbox SM

  • Ratio 8 to 148.4
  • Input Power: 0.15 to 2.12kW
  • Torque: up to 250Nm
  • IEC Motor Adapter
  • Output Shaft Options:
  • Shaft w/ keyway
  • Hollow Shaft w/ shrink disc
  • Hollow Shaft w/ keyway
  • Double Output Shaft

Options:

  • Torque Arm

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