Nmrv/Nrv Nmrv150 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
NMRV 150 worm gear motor for general industrial use refers to angular type drives. The unit provides high output torque (up to 1760 N * m), withstands significant radial loads (up to 18 000 N). Robust cast iron body gear motor has a protective coating. Mounting options: feet / flange.
Additional options:

• reactive rod for reactive torque compensation
• outlet flange for securing to the frame
• variator attachment for regulating the output shaft rotation speed
• torque limiter

Materials parts:
Body - iron, flanges - iron, worm - steel crown worm wheel - bronze. 
Type of lubricant: synthetic ISO VG 220. 
Weight: 84 kg.

Type designation scheme

NMRV - 150 - 7.5 - 186.7 - 15 - B7

• NMRV - worm gear motor
• 150 - size (center distance, mm)
• 7.5 - gear ratio
• 186.7 - output shaft rotation speed, rpm
• 15 - electric motor power, kW
• B7 - mounting position

NMRV 150 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	862	36.20	93	187	1162	25.30	91	120	1410	19.90	89
10	280	879	28.00	92	140	1197	19.50	90	90	1429	15.30	88
15	187	924	20.10	90	93	1250	2 p.m.	87	60	1488	11.00	85
20	140	990	16.30	89	70	1320	11.25	86	45	1550	8.80	83
25	112	920	12.00	90	56	1203	8.30	85	36	1414	6.50	82
30	93	900	10.30	85	47	1138	7.00	80	30	1348	5.50	77
40	70	1234	10.90	83	35	1596	7.50	78	23	1837	5.90	75
50	56	1091	7.90	81	28	1426	5.50	76	18	1665	4.30	73
60	47	1024	6.30	80	23	1370	4.40	75	15	1582	3.50	71
80	35	884	4.50	72	18	1102	3.10	67	11	1354	2.40	65
100	28	848	3.50	71	14	1080	2.40	66	9	1250	1.90	62

• 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 150









NMRV150 gear motor  has a wide range of gear ratios.
Gear ratios: 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 .



Output flange to NMRV 150 gearbox

Geared NMRV150 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