How do you determine the service factor of a gearbox?
Be sure to take your service factor into account when designing your drive system. Multiplying the service factor by the torque required for the application will give you the capability of the gearbox. A reducer with a 2.0 service factor can accommodate double the torque compared to a 1.0 service factor.
How do you calculate gearbox efficiency?
Gearbox efficiency is the ratio of the output torque divided by the product of the input torque times the overall gear ratio. The overall gear ratio is the total gear reduction in the gearbox—the number of motor revolutions required for one revolution of the stem nut.
How is gearbox power calculated?
Motor power = torque ÷ 9550 × Rated power’s motor input speed /Ratio /service factor. [1] Service factor(f.s.):…How to calculate gearbox output torque?( gearbox output torque calculation formula)
| Code | Description | Unit |
|---|---|---|
| T2 | Gearbox output torque | N.m (Kgs.m) |
| P1 | Input Power | Kw |
| n1 | Input speed | r/min (RPM) |
| i | Total ratio | – |
How do you calculate service factor?
Calculate or determine your service factor by choosing the service factor that corresponds to your hp and various RPM levels. For example, according to the table, if you have a 1HP motor and you operate it at 3600 RPM continuously, your service factor is 1.25. Calculate your operating or “effective” HP level.
What is 1.15 service factor?
Motor “service factor” is probably the most misunderstood value on a motor nameplate. To most it seems quite simple; if it is a 1.0 you can run a motor to 100% load, if it is 1.15, then it can be loaded to 115% of its rated load.
How do you calculate the rpm of a gearbox?
(Hz x 60 x 2) / number of poles = no-load RPM. (60 x 60 x 2) / 4. 7,200 / 2 = 3,600 RPM.
How do you calculate watts to rpm?
Most generators have a power factor of ….ELECTRICAL UNIT CONVERSIONS.
| VALUE | 1-PHASE | 3-PHASE |
|---|---|---|
| RPM (n) | Hertz X 120 Rotor Poles | Hertz X 120 Rotor Poles |
| NUMBER OF ROTOR POLES (P) | Hertz X 120 RPM | Hertz X 120 RPM |
| POWER FACTOR (PF) | Actual Watts I X E | Actual Watts I X 1.73 X E |
| HORSEPOWER (HP) | I v E X PF 746 X EFF | I X E X 1.73 X PF 746 X EFF |
What’s a service factor?
Service factor – SF – is a measure of periodically overload capacity at which a motor can operate without beeing damaged. Sponsored Links. The service factor – SF – is a measure of periodically overload capacity at which a motor can operate without damage.
How do you calculate the RPM of a gearbox?
How is IMA calculated?
Calculating Mechanical Advantage and Efficiency of Simple Machines. In general, the IMA = the resistance force, Fr, divided by the effort force, Fe. IMA also equals the distance over which the effort is applied, de, divided by the distance the load travels, dr.
What is production efficiency factor?
Businesses consider many factors when deciding to use their resources to produce goods. Production efficiency, which is an important production factor, refers to a point where production reaches full capacity and maximum efficiency.
How do you convert Hz to rpm?
Multiply your frequency by 60. In the example, you would multiply 65 hertz by 60 to get 3,900 rpm.
What does service factor 1.15 mean?
For example, the standard SF for open drip-proof (ODP) motors is 1.15. This means that a 10-hp motor with a 1.15 SF could provide 11.5 hp when required for short-term use. Some fractional horsepower motors have higher service factors, such as 1.25, 1.35, and even 1.50.