F Series Helical Gear Reducer

The F series is a compact parallel-shaft helical gear reducer designed to reduce speed and transmit torque in conveyors, material-handling equipment and industrial machinery.
Product Overview
The F series is a parallel-shaft helical gear reducer designed to reduce speed and transmit torque in industrial drive systems. Its compact arrangement is suitable for applications where installation space is limited.
Typical applications include conveyors, material-handling equipment and processing machinery. Depending on the selected model, the reducer may be supplied with a solid or hollow output shaft and different mounting arrangements.
Select the unit according to the required output speed, torque, service factor and operating cycle. Verify shaft dimensions, mounting interfaces, permissible shaft loads and lubrication requirements before installation.
Electrical Specifications
ParameterSpecification
Drive ConfigurationParallel-shaft helical gear reducer with integrated motor, motor adapter or shaft input
Motor TypeThree-Phase AC Induction Motor; servo motor configurations available with suitable adapters
Rated Motor Power0.12–200 kW, depending on gear unit size, ratio and motor connection
Rated VoltageMotor options include 220–240 V, 380–400 V, 415–440 V and 660–690 V
Rated Frequency50 Hz or 60 Hz, according to the selected motor rating
Motor Rated SpeedSelected according to motor pole count, supply frequency and required output speed
Rated CurrentSpecified for the selected motor power, voltage and frequency
Motor Efficiency ClassIE3 motor packages available; other classes subject to motor selection
Motor Protection RatingIP55 motor packages available; special protection configurations subject to confirmation
Insulation ClassClass F motor packages available
Operating DutyS1 continuous-duty motor packages available; intermittent duty requires separate selection
Brake OptionOptional brake motor; brake torque selected for the application
Inverter OperationSuitable motor configuration required; verify cooling, torque and gearbox speed limits
Mechanical Specifications
ParameterSpecification
Gear TypeParallel-Shaft Helical Gear Reducer
Gear Unit SizeSizes include F27, F37, F47, F57, F67, F77, F87, F97, F107, F127 and F157; numbering varies by product configuration
Output ShaftSolid shaft, keyed hollow shaft, shrink-disc hollow shaft or splined hollow shaft
Mounting ArrangementFoot-mounted, flange-mounted or shaft-mounted; B5/B14 flange options on selected configurations
Shaft / Bore DiameterSolid shaft diameters: 25–120 mm; hollow bore dimensions depend on connection type
Input ConnectionIntegrated gearmotor, IEC motor adapter, servo adapter or solid input shaft
Net WeightSpecified for the selected size, mounting arrangement and motor package
Overall DimensionsSolid output shaft extensions: 50–210 mm; housing dimensions depend on configuration
Technical Specifications
Mechanical SpecificationsSpecification
Reduction RatioStandard two-/three-stage units: 3.77–281.71; combined reduction units: 87–31,434
Rated Output TorqueModel-dependent maximum output torque ratings: 130–20,000 Nm
Output SpeedAt 1,450 rpm input: approximately 5.15–384.62 rpm for standard units; 0.046–16.67 rpm for combined units
Permissible Input SpeedSelected according to ratio, bearing speed, thermal capacity and lubrication conditions
Service FactorSelected according to driven load, daily operating hours, starting frequency and shock loading
Gear StagesTwo or three stages for standard units; additional stages for combined reduction configurations
Permissible Shaft LoadsRadial and axial limits specified for the selected size, speed and load application point
LubricationGear oil lubrication; oil grade and quantity matched to mounting position and operating conditions
Operating TemperaturePermitted range determined by lubricant, seals, motor and thermal loading
Optional FeaturesBrake motor, reduced backlash, torque arm, backstop or special shaft connection, depending on configuration
Frequently Asked Questions

Provide the required output speed, torque, motor power, operating hours, starting frequency and mounting position. Include any shock loads and radial or axial forces acting on the output shaft.

The F series described here uses a parallel-shaft arrangement. Check the dimensional drawing to confirm the shaft positions and installation layout.

Divide the input speed by the required output speed to estimate the ratio. Select an available ratio and verify output torque, service factor and gearbox capacity.

Motorized units and motor-adapter configurations may be available. Confirm the motor rating, electrical supply, mounting interface and any brake requirements when ordering.

Availability depends on the model. Confirm the shaft or bore diameter, connection method and mounting requirements using the selected unit’s drawing.