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 CHINAMFG 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 1 = 2800 rpm 1 = 1400 rpm 1 = 900, rpm
2 ,
rpm
2M ,
N * m
P
kw
RD
%
2 ,
rpm
2M ,
N * m
P
kw
RD
%
2 ,
rpm
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 1571  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

 
 
 

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Application: Motor, Motorcycle, Machinery, Agricultural Machinery, Industry
Hardness: Hardened
Installation: Any Angle
Gear Shape: Worm Gear
Step: Single-Step
Type: Worm and Wormwheel
Samples:
US$ 20/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

agricultural gearbox

Contribution of Agricultural Gearboxes to Farming Machinery Versatility

Agricultural gearboxes play a pivotal role in enhancing the overall versatility of farming machinery. Here’s how they contribute:

  • Variable Speeds: Agricultural gearboxes enable machinery to operate at different speeds, allowing farmers to adapt to various tasks. For instance, tractors equipped with adjustable gearboxes can efficiently switch between plowing, seeding, and harvesting.
  • Torque Management: Gearboxes control torque delivery to match the requirements of different operations. This ensures optimal power transmission and prevents overloading during tasks like tilling or lifting heavy loads.
  • Multi-Functionality: Many farming machines are designed to perform multiple tasks. By incorporating versatile gearboxes, these machines can efficiently switch between functions without requiring major modifications.
  • Attachment Compatibility: Farm machinery often requires attachments like mowers, plows, or sprayers. Agricultural gearboxes can be designed to accommodate various attachments, increasing the machinery’s utility and adaptability.
  • Adjustable Ratios: Some gearboxes allow operators to change gear ratios on-the-fly. This adaptability is essential for tasks that demand precise control over speed and torque, such as precision planting or spraying.
  • Efficient Power Distribution: Gearboxes help distribute power from the engine to different components of the machinery, such as wheels, axles, and implements. This efficient power distribution ensures effective utilization of energy.
  • Task-Specific Optimization: Different farming tasks have specific requirements. Agricultural gearboxes can be tailored to optimize machinery performance for tasks ranging from soil preparation to crop maintenance.
  • Enhanced Maneuverability: Gearboxes can enable machinery to change directions easily and navigate tight spaces. This is especially valuable in tasks like plowing fields or maneuvering within orchards.
  • Adapting to Terrain: Versatile gearboxes allow machines to adapt to different terrains, ensuring consistent performance on various surfaces like hills, slopes, or uneven ground.
  • Seasonal Flexibility: Farming involves seasonal tasks that vary in demand and complexity. Gearboxes offer the flexibility to optimize machinery for specific tasks during different seasons, enhancing overall efficiency.

Agricultural gearboxes are a cornerstone of farming machinery versatility, enabling farmers to accomplish a wide range of tasks efficiently and effectively.

agricultural gearbox

Common Signs of Gearbox Wear and Their Solutions

Gearboxes, like any mechanical components, can experience wear over time due to factors such as friction, load, and operating conditions. Recognizing the common signs of gearbox wear is essential for timely maintenance and avoiding potential breakdowns. Here are some signs to watch out for and the solutions to address them:

  • Unusual Noises: Grinding, clicking, or whining noises during operation can indicate worn gears or bearings. Inspect the gearbox for damaged teeth or inadequate lubrication. Replace damaged components and ensure proper lubrication.
  • Increased Vibration: Excessive vibration suggests misalignment or imbalance within the gearbox. Check for proper alignment and balance the components if necessary. Also, inspect for worn or damaged shafts or bearings.
  • Leakage: Oil or lubricant leaks may indicate worn seals or gaskets. Replace seals and gaskets to prevent leakage and ensure adequate lubrication.
  • Slipping Gears: Gears slipping out of engagement or difficulty shifting can point to worn or damaged gear teeth. Inspect gears for signs of wear or chipping, and replace as needed.
  • Temperature Increase: Abnormal heat generation can result from increased friction due to worn parts. Check lubrication levels and quality, and replace worn bearings or gears causing excess friction.
  • Decreased Performance: Reduced power transmission or output efficiency can indicate wear in the gearbox. Inspect gears, bearings, and other components for signs of wear and replace as necessary.
  • Excessive Play: Excessive play or backlash in gears can indicate worn gear teeth or bearings. Inspect components for wear, adjust backlash, and replace worn parts.

Addressing gearbox wear requires routine maintenance, including proper lubrication, alignment checks, and regular inspections. Timely replacement of worn or damaged components can extend the gearbox’s lifespan and maintain optimal performance in various applications.

agricultural gearbox

Power Transmission in Farming Equipment with Agricultural Gearboxes

Agricultural gearboxes play a vital role in facilitating power transmission within various types of farming equipment. These gearboxes are integral components that enable the transfer of rotational power from a tractor’s engine to different agricultural implements and machinery. Here’s how agricultural gearboxes contribute to power transmission:

  • Speed Reduction: In many farming operations, the engine of a tractor or other power source operates at a higher speed than is suitable for the optimal functioning of agricultural implements. Agricultural gearboxes provide speed reduction by using a combination of gears with different numbers of teeth. This reduction in speed allows the machinery to operate at the required speed for efficient tasks like tilling, planting, or harvesting.
  • Power Multiplication: Some agricultural tasks require a significant amount of torque to operate effectively. Gearboxes can multiply the input torque from the engine to generate higher torque at the output shaft. This is crucial for tasks such as plowing, where substantial force is needed to break up the soil.
  • Directional Change: Agricultural gearboxes also allow for changes in the direction of power transmission. For instance, a tractor’s power take-off (PTO) shaft may need to transmit power at a right angle to the tractor’s engine. Gearboxes with bevel gears or other arrangements enable this change in direction, ensuring that power is properly directed to the implement.
  • Power Distribution: In certain cases, power needs to be distributed to multiple components or implements. Agricultural gearboxes with multiple output shafts can distribute power to different tasks simultaneously, optimizing efficiency and productivity.
  • Attachment Operation: Many agricultural implements, such as plows, seed drills, and rotary mowers, require consistent and controlled power to function effectively. Gearboxes provide the necessary power and control to these attachments, ensuring uniform operation and accurate results.

By facilitating speed reduction, power multiplication, directional changes, power distribution, and attachment operation, agricultural gearboxes contribute significantly to the overall efficiency and productivity of farming equipment. They allow farmers to adapt their machinery to various tasks, optimize power usage, and achieve better results in different agricultural operations.

China Good quality Nmrv/Nrv Nmrv150 Worm Gear Speed Reduction Reducer Gearbox   gearbox design		China Good quality Nmrv/Nrv Nmrv150 Worm Gear Speed Reduction Reducer Gearbox   gearbox design
editor by CX 2024-05-08