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Helical - AM

High Quality Products

Ströter AM Serie – Helical Variable Speed Gear Motors

Mechanical transmission control without electronics. The BEGE Ströter AM series helical variable speed gear motors are simple and robust drive components. Speed is easy and quick to control by means of a handwheel.

This drive does not contain expensive control cabinets and frequency inverters. With Ströter variable speed gear motors, you are able to make responsible and cost-effective choices when it comes to variable gears.

AM Serie – Helical Variable Speed Gear Motors: main features

Low maintenance and wear-free due to the use of hardened and ground gears
Standard suitable for IEC sizes
Pricely graduated control range of 1:10 and adjustable at standstill as in operation
Steel on steel friction discs guarantee extra quiet running and operation
Various coating qualities allow use in corrosive environments

Allround Applicable Solution

  • Worldwide Use & Applications
  • Wide-Ranging Functionality
  • Long Life & Low Maintenance

Durable Solution

  • Long Life & Low Maintenance
  • Durable Use of Materials
  • Robust Construction

Reliable Drive Technology

  • Proven Technology
  • Allround Applicable Solution
  • Long Life & Maintenance Free

Technical specifications & more info

Technical specifications

Ratio7,5:1 - 300:1
Speed range1:10
Output speed (rpm)0,01 - 0,1 to 250 - 2.500
Nominal torque (Nm)0,4 - 2.590
Max. torque (Nm)2590
Motor3-phase IEC AC-Motor
Power range (kW)0,09 - 1,5
Voltage/frequency230 / 400V - 50Hz
400 / 690V - 50Hz
Efficiency classIE3 (≥0,75kW - 2 / 4 / 6-poles)
Protection classStandard IP55
max. IP66
Isolation classF
MaterialCast iron
LubricationISO VG068 mineral oil
Lifetime (L10h)> 15.000
CertificatesCE, UL/CSA, ATEX


IEC Motor sizeIEC56 - 80
Mounting executionsFoot-mounted
Output shaft diameter (mm)12 - 75
Coating / colorAccording to ISO 12944

Optional features

Remote speed indicator (digital or analogue)

Electrical remote adjustment

Remote adjustment with flexible shaft

PTC thermistor

Bimetal temperature switch


Pole-changing motors



Special voltage / frequency

Increased protection

Reinforced output shaft bearing

Stainless steel output shaft

Forced ventilation

Inquire availability

Repair & Maintenance

Is a current component or drive system in need of maintenance or repair? BEGE has extensive knowledge of a wide variety of drives and systems. We guarantee a rapid resumption of operational procedures.

Contact our support department

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