MotorMatch

mean rpm, "equivalent torque" (rpm weighted Root Mean3.3- RM3.3-w)
and root mean square RMS torque

Enter Load cycle data

up to 10 sets of duration, torque, and rpm values

Click to Calculate

The calculation is based on the L10 method for dynamically loaded bearings according DIN ISO 76 and 281

duration (time) sec
output Torque
Nm
output rpm
rpm

1-

2-

3-

4-

5-

6-

7-

8-

9-

10-



mean RPM   =

RM3.3 -w torque =
rpm weighted



RMS torque =

PLS Gearhead life calculation

select gear size	select gear ratio


mean output rpm rpm	equivalent torque (rm3.3) Nm

Gear-head L10 life @ the above equivalent torque load and mean rpm
hours

Gear head basic continuous duty torque rating

Note: L10 life means 90 % probability that the calculated life will be exceeded
calculation according DIN ISO 76 and 281

PLS Gearhead life calculation

select gear size	select gear ratio


mean output rpm rpm	equivalent torque (rm3.3) Nm

Gear-head L10 life @ the above equivalent torque load and mean rpm
hours

Gear head basic continuous duty torque rating

Note: L10 life means 90 % probability that the calculated life will be exceeded
calculation according DIN ISO 76 and 281

WPLS Gearhead Sizing / Selection
Selection Mode (choose application type / selection mode ) (help)
1-Application with frequent ACCEL / DCEL cycles
2-Continuous duty with the Motor Nominal (rated) torque
3-Continuous duty with a specified output torque

Application data (help)
select gear ratio	Inertia ratio	friction torque at output
help	help	Nm help

(Trigger sizing and selection / Re-trigger after input data were changed)

Suggested Neugart WPLS Gearhead Selection

Required gearhead torque rating
Nm

Suggested WPLS gear

Gearhead rated torque
Nm

*SF*

Maximum input bore size of the gearhead (mm)		Motor / input shaft length for standard input-adapter (mm)
max. unsupported motor weight (kg)

Standard WPLS gear head ordering code (Type Code) :

for

Remarks:

WPLE Gearhead Sizing / Selection
Selection Mode (choose application type / selection mode ) (help)
1-Application with frequent ACCEL / DCEL cycles
2-Continuous duty with the Motor Nominal (rated) torque
3-Continuous duty with a specified output torque

Application data (help)
select gear ratio	Inertia ratio	friction torque at output
help	help	Nm help

(Trigger sizing and selection / Re-trigger after input data were changed)

Suggested Neugart WPLE Gearhead Selection

Required gearhead torque rating
Nm

Suggested WPLE gear

Gearhead rated torque
Nm

*SF*

Maximum input bore size of the gearhead (mm)		Motor / input shaft length for standard input-adapter (mm)
max. unsupported motor weight (kg)

Standard WPLE gear head ordering code (Type Code) :

for

Remarks:

NEUGART Gearhead Life Calculation Utility

Load Cycle Data	PLN	PLE WPLE

welcome to the NEUGART
Gearhead Life calculation

The Neugart gearhead rated torque data are for continuous duty operation at 100 rpm output shaft speed. In a real world case the actual loading is dynamic (not constant) and the output speed is moistly not constant either. This utility will assist you to calculate the gearbox life for dynamic, changing loads described by a load cycle. respectively as function of the mean rpm and the equivalent torque loading.
Equivalent torque loading = " rpm weighted Root mean 3.3 value" according international bearing calculation standards.

To calculate the gearhead L10 design life proceed as follows:

1- click the Load Cycle DATA radio button - enter the data sets (up to 10) describing your load cycle (duration, torque, rpm) - the utility will determine the mean rpm and the equivalent torque load according industry recognized standards DIN ISO 76 and 281

2- click the desired gearhead type radio button, - select size and ratio - the utility will determine the actual L10 life (90% survival probability) in hours and also list the standard rated continuous torque value at the nominal defined output rpm.