Nmrv/Nrv Nmrv075 Worm Gear Speed Reduction Reducer Gearbox

• Application: Motor, Motorcycle, Machinery, Agricultural Machinery, Industry
• Hardness: Hardened
• Installation: Any Angle
• Gear Shape: Worm Gear
• Step: Single-Step
• Type: Worm and Wormwheel
• Color: Red, Blue, Grey, Yellow
• Manipulate Way: Semi-Automatic Manipulation
• Changes Way: Mixed
• Manufacturing Method: Cast Gear
• Material: Aluminum/Cast Iron
• Transport Package: Carton, Wooden Case, Plywood
• Specification: SGS
• Trademark: Kailida or OEM
• Origin: Zhejiang, China
• HS Code: 8483409000
• Production Capacity: 20000PCS/Month

Product Description

NMRV  REDUCTION WORM GEARBOX
The NMRV 075 lowering motor gearbox includes a worm gearbox with a single gear stage and an IEC asynchronous motor. The drive is optionally equipped with an output flange, a reaction rod, and double-sided shafts. Engine power is 0.25 - 4 kW.
Parts materials:
Case - aluminum, flanges - aluminum, worm - steel, worm wheel crown - bronze. 
Type of lubricant: synthetic ISO VG 320. 
Weight: 9 kg.

Type designation scheme

NMRV - 075 - 40 - 22.5 - 0.75 - B1

• NMRV - worm gear motor
• 075 - size (center distance, mm)
• 40 - gear ratio
• 22.5 - output shaft rotation speed, rpm
• 0.75 - electric motor power, kW
• B1 - mounting position

NMRV 075 gearbox performance

i	n 1 = 2800 rpm				n 1 = 1400 rpm				n 1 = 900, rpm
	n 2 , rpm	T 2M , N * m	P kw	RD %	n 2 , rpm	T 2M , N * m	P kw	RD %	n 2 , rpm	T 2M , N * m	P kw	RD %
7.5	373	169	7.11	93	187	235	5.05	91	120	273	3.86	89
10	280	178	5.66	92	140	237	3.86	90	90	278	2.98	88
15	187	191	4.12	91	93	252	2.79	88	60	295	2.16	86
20	140	176	2.93	88	70	240	2.07	85	45	265	1.52	82
25	112	208	2.71	90	56	271	1.87	85	36	309	1.42	82
30	93	221	2.50	86	47	263	1.60	81	30	328	1.32	78
40	70	201	1.80	82	35	261	1.24	77	23	289	0.94	74
50	56	206	1.47	82	28	268	1.02	77	18	302	0.77	74
60	47	178	1.17	75	23	238	0.82	70	15	256	0.61	66
80	35	181	0.86	77	18	233	0.61	72	11	280	0.46	70
100	28	153	0.66	68	14	206	0.48	63	9	225	0.36	59

• n1 - rotational speed el. engine;
• n2 - revolutions on the output shaft;
• T 2M - torque on the output shaft;
• P is the maximum allowable engine power;
• RD - efficiency

GEARBOX FEATURE

1.Good quality,long life time,low noise.

2.Compact,convenient.

3.High efficiency,big torque.

 

Overall and mounting dimensions NMRV 075





NMRV075 gear motor  has a wide range of gear ratios.
Gear ratios:  5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 .



Output flange to NMRV 075 gearbox

Geared NMRV075 can be supplied with unilateral or bilateral output shaft. 
The gearbox comes standard with a hollow output shaft





A torque arm is an additional option to the gearbox.

Model	NMRV SERIES
Single Stage	RV25-RV150
Ratio	7.5-100
Input Power	0.06KW-15KW
Output Speed	14-280rpm
Output Torque	5-1800Nm
Core parts	worm wheel,worm shaft
Core parts material	worm shaft:20 Cr Mn Ti,worm wheel:Nodular cast iron interal,9-4 copper external
Lubrication	RV30-90:synthetic oil, RV110-150:GN460-W mineral oil
Bearings	C&U