The correct selection is necessary to use
EVER-POWER worm speed reducer efficiently.Therefore please refer to
the following specification before ordering.
lnput Shaft Speed
The general input shaft speed is
600-1500r/min,the maximum is 1800r/min.Too low input shaft speed
could affect efficiency and lubrification.
Output Shsft Speed
Depends upon the input shaft speed and reduction ratio.
Output Torque T
The transmission torque of reducer depends
upon the force that causes the output shaft rotate and the rotary
Load Factor f
The rating input power and output torque of
reducer is established on the basis of an ideal condition that the
reducer are operating continuously 8 hours per day under a constant
load.If the load or operating condition changes. the output torque
changes also.So select suitable type must according to the flowing
Overhung Load Coefficient f1
It is due to the O.H.L.that the shaft of the speed reducer bent
or its casing cracked.According to table 2,the selected reducer type
must meet the following
Table1:Load Factor f
Note:For frequent starts and stops
multiply the above table by 1.25.
|Prime Mover||Duration Of Service Per Day||Load Factor f|
|Uniform Load||Moderate Shock||Heavy Shock|
|Electric Motor||Occasional 1/2h||0.80||0.90||1.00|
Table1 2:Overhung Load (O.H.L.)Coefficient f1
|Transmission Method||Sprocket||Gear||V-belt||Flat Belt|
One conveying machine needs to select a worm
speed reducer(input shaft is lower).Its input shaft speed is
1450r/min.Its output shaft speed is 29r/min.Chain pulley
transmission,the tensile force is 1000 Ibs on full load. The
diameter of sprocket's reference circle is 10in.Operating 10 hours
continuously per day.Moderate shook.
Selecting As Follows:
to table 1,f=1.25
Refer to page 11,select Type 135(50:1),Its
max. allowed torque is 6820in.Ibs,Its max.allowed O.H.L.is 1520 Ibs.
Thus, AY135-50:1 is selected. Otherwise refer to page 9,select
Type 516(50:1), Its max. allowed torque is 7110 in.Ibs and its max.
allowed O.H.L. is 2700 Ibs,Yoy can select UAY516-50:1