Gearbox Gear reducer RV series

Single Step Worm Gear Reducer

Made of Aluminum alloy die-casting box, good looking in appearance, compact in structure rust proofing on Surface and small volume to save mounting space.

Good radiating characteristic leads safe and high efficiency for using.

The strong capacity of loading and overload ensure stable transmission, make less vibration and noise.Varies of connecting structure for power input and torque output meet different requirements, the design of box outline and theset offoot hole is aot to withmany kinds ofmounting.Besides big cases, no gap structure of box means a maintenance-free that is hermetically sealed. it prevents the lubricantfromeasilylosing and qoing bad.and exchanging.

Double Step Worm Gear Reducer

lt is combined by two sinale step reducers and has all the virtues of them. And you can get bigger ratio with it.The models of25/30,25/40,30/40,30/50,30/63,40175,40/90,50/110,63/130,63/150,arein common use.You can choose 25,30,40,50,63,75, 90, 110,130, 150 as combination units to combine according to the factof your special needs.

Please read before use

eLoad conditionSpeed of rotation or speed ratio ( combination with combine speed reducer can get extra low outputing rotational speed )Work circumstance(temperature,humidity,corrosion etc. )

 

Space of installation

Ensure coefficient of work condition K1 and coefficient of revise K2

According to the table 1,choose machinery loading type A,B,C)According to the working time(h/d) and frequency ( times/h ) get the coefficient of work condition K1 from table 1According to the table 2, pick up coefficient of revise K2

At first, to ensure the value of input machinery load T(torque), multiple K1 and K2 by T, then you can get the value of outputtorque, on the basis of which, also consider speed of output rotation or speed ratio then you can choose specification.You can calculate the output torque based on the known input power, reasonable ratio or speed of output rotation, then you

can choose specification.

Example for model selectionEx1.General conveyor belt (uniform load)

Torque: 19N.mSpeed of rotation: about 55r/minstart frequency: 10times/hRatio:1/25Temperature:25℃(indoor)Connect with motor direct

Turning time: 8hs/day

According to the table 1,ensure type of load

Type of load: load-bearing uniform without impact, choose A;

2 According to diagram 1, choose the point 10times/h on the intersection A, we can get the K1=1 of tuming time 8hs/d:

3According to the table 2.get the K2=1;4The value of toraue is 19 xK1xK2=19 x1x 1=19N.m,choose the closest 19N.m reducer.Choose selection: NMRV30-1/25Input power = 0.18kw, the speed of output rotation is= 56r/min,the value of output torque is 21N.m

Ex2.conveying belt(moderate load)

Torque:65N.m

Turning time:16hs/d

Speed of rotation:about 21r/minRatio:1/60

Start frequency:100times/h

Temperature:35℃(indoor)Connect with motor direct

①According to the table 1,ensure type of load

Type of load: light load-bearing, choose B;2According to diagram 1, choose the point 100times/h on the intersection B,then you can get the K1=1.65 of tumingtime16hs/d:

3According to the table 2.get the K2=1.15:4The value of torque is 65 x K1 x K2=70 x 1.65 x 1.15=123N.m, choose the closest 123N.m reducer..

Choose selection: NMRV63-1/60

Input power = 0.55kw, the speed of output rotation =23.3r/min,the value of output torque is 140N.m