Brief introduction to RV series worm gear speed reducer
RV series worm gearbox / speed reducer is a new generation of products developed by our company with combination of advanced technology both at home and abroad. It feature in:
1) Aluminium alloy die cast casing for RV 025,030,040,050,063,075,090,light weight and non-rusting;cast iron casing for RV110,130,150.
2) large output torque.
3) stable transmission with lower noise.
4) high gear-radiation efficiency.
5) elegant shape,small volume and durable serving life
6) suitable for omnibearing installation
Model & Mark :NMRV 040-30 E F1 AZ B3
NMRV | NMRV means hole input with flange | NRV means shaft input without flange |
040 | Distance between the centers of worm and worm gear |
30 | Speed ratio of worm gear speed reducer |
E | "E" means double extension worm shaft, no mark means single extension worm shaft |
F1 | "F" means output flange, "FL" means high output flange,no mark means output without flange |
AZ | "AZ"means bidirectional output shaft, "GZ"means unilateral output shaft and no mark means hole output |
B3 | Installation position code |
Performance parameter for RV series worm gear speed reducer
Motor power | Model | speed ratio | output speed | output toruqe |
0.06kw 1400rpm | NMRV040 | 50 | 28rpm | 13.0N.M |
NMRV040 | 60 | 24rpm | 14.0N.M |
NMRV040 | 80 | 18rpm | 17.0N.M |
NMRV040 | 100 | 14rpm | 20.0N.M |
0.09kw 1400rpm | NMRV040 | 50 | 28rpm | 19.0N.M |
NMRV040 | 60 | 24rpm | 21.0N.M |
NMRV040 | 80 | 18rpm | 25.0N.M |
NMRV040 | 100 | 14rpm | 29.0N.M |
0.12kw 1400rpm | NMRV040 | 20 | 70rpm | 13.0N.M |
NMRV040 | 25 | 56rpm | 16.0N.M |
NMRV040 | 30 | 47rpm | 17.0N.M |
NMRV040 | 40 | 35rpm | 21.0N.M |
NMRV040 | 50 | 28rpm | 25.0N.M |
NMRV040 | 60 | 24rpm | 28.0N.M |
NMRV040 | 80 | 18rpm | 33.0N.M |
NMRV040 | 100 | 14rpm | 38.0N.M |
0.18kw 1400rpm | NMRV040 | 15 | 94rpm | 15.0N.M |
NMRV040 | 20 | 70rpm | 19.0N.M |
NMRV040 | 25 | 56rpm | 23.0N.M |
NMRV040 | 30 | 47rpm | 25.0N.M |
NMRV040 | 40 | 35rpm | 32.0N.M |
NMRV040 | 50 | 28rpm | 37.0N.M |
NMRV040 | 60 | 24rpm | 42.0N.M |
0.25kw 1400rpm | NMRV040 | 5 | 280rpm | 8.0N.M |
NMRV040 | 7.5 | 186rpm | 12.0N.M |
NMRV040 | 10 | 140rpm | 15.0N.M |
NMRV040 | 15 | 94rpm | 21.0N.M |
NMRV040 | 20 | 70rpm | 27.0N.M |
NMRV040 | 25 | 56rpm | 32.0N.M |
NMRV040 | 30 | 47rpm | 36.0N.M |
NMRV040 | 40 | 35rpm | 45.0N.M |
0.37kw 1400rpm | NMRV040 | 5 | 280rpm | 11.0N.M |
NMRV040 | 7.5 | 186rpm | 16.0N.M |
NMRV040 | 10 | 140rpm | 21.0N.M |
NMRV040 | 15 | 94rpm | 31.0N.M |
NMRV040 | 20 | 70rpm | 40.0N.M |
NMRV040 | 25 | 56rpm | 48.0N.M |
NMRV040 | 30 | 47rpm | 54.0N.M |
The speed reducer NMRV040 Accessories outline dimension
| K1 | G | KG | KH | R |
NMRV040 | 100 | 14 | 31.5 | 10 | 18 |
Speed reducer Size of Single Extension & Double extension
| D(h6) | B | B1 | G1 | L | L1 | f | b1 | t1 |
NMRV040 | 18 | 40 | 43 | 78 | 128 | 164 | M6 | 6 | 20.5 |
The NMRV040 speed reducer Motor - Double extension worm shaft
| G2 | d(j6) | B | F | b1 | t1 |
NMRV040 | 53 | 11 | 23 | -- | 4 | 12.5 |
The NMRV040 speed reducer Motor
IEC Motor adapters |
Model | PAM(IEC) | N | M | P | ration | Shaft:D |
NMRV040 | 71B5 | 110 | 130 | 160 | 20 | 14 |
| 71B14 | 70 | 85 | 105 | 20 | 14 |
| 63B5 | 95 | 115 | 140 | 20 | 11 |
| 63B14 | 60 | 75 | 90 | 20 | 11 |
| 56B5 | 80 | 100 | 120 | 20 | - |
The NMRV040 speed reducer Motor - Mounting positions
Worm gearbox of Position diagram for output flange
Worm gearbox of position diagram for torque arm
Worm gearbox of position diagram for one-way output shaft
Notice for ordering:
1) when ordering,please refer to the details of the products and tell us the exact type your need according to your requirements,like input speed,output torque,configuration,installation,etc:the installation position of the products in the order should accord with your actual needs,otherwise, it will result in oil leakage, which will impact the serving life of the products negatively.if there is special requirement to the installation position,please stress it and inform us.
2) to attain the excellent state of the variators, the common working speed should be chosen in the middle position,instead,it ismot appropriate to choose in the positions of min,or max.speed
3) if your requirements of worm gearbox or speed variator are different from shte standard products as in the catalogue,like:some portion that should be customized or mounted with special motors,please inform us in advance
Technical data:
Model | RV025 030 040 050 063 075 090 110 130 150 |
Single unit versions | NMRV - fitted for motor flanged coupling, NRV - with input shaft, NMRV-E motor flanged coupling with worm extension shaft, NRV-E with double extension worm shaft, |
Power | 0.06----15KW |
Single unit reduction ratio | 1:5 7.5 10 15 20 25 30 40 50 60 80 100 |
Output torque | 2.6---1195N.M |
Worm shaft | 20CrMnTi with carburizing and quenching.The hardness of surface is 56-62HRC with carbonized layer 0.5-0.8mm |
Worm wheel | worm mandrel is HT250,and worm ring gear,ZQSn10-1 |