CMN-NMRV040 Worm Gear Reducers/Worm Gearbox

The CMN-NMRV040 worm gear reducer, also known as a worm gearbox, is a compact, high-performance mechanical device designed to reduce rotational speed and increase torque in various applications. It features a worm gear system, consisting of a worm (a screw-like component) and a worm wheel (a toothed wheel), which work together to achieve a high gear reduction ratio. They are widely used in conveyor systems, material handling equipment, packaging machines, and other industrial applications due to their smooth operation, low noise, and efficiency.

The CMN-NMRV040 worm gear reducer, also known as a worm gearbox, is a compact, high-performance mechanical device designed to reduce rotational speed and increase torque in various applications. It features a worm gear system, consisting of a worm (a screw-like component) and a worm wheel (a toothed wheel), which work together to achieve a high gear reduction ratio. The "040" in the name refers to the frame size of the gearbox, indicating a specific dimension standard.

These worm gear reducers are made from lightweight, corrosion-resistant aluminum alloy housing, making them durable and suitable for demanding environments. They are widely used in conveyor systems, material handling equipment, packaging machines, and other industrial applications due to their smooth operation, low noise, and efficiency. Additionally, CMN-NMRV040 units are compact, easy to install, and highly adaptable, often featuring modular mounting options for flexibility in various setups.

CMN-NMRV040 Worm Gear Reducer

CMN-NMRV040 Worm Gearbox Specifications

TypeCMN-NMRV040 Worm Gearbox/ Worm Gear Speed Reducer
ModelCMN-NMRV040
Reduction Ratio5,7.5,10,15,20,25,30,40,50,60,80,100
FlangeFA / FL or as per your demands
Matching Motor0.06KW~15KW
MaterialDie-casting Aluminum Alloy
ColorBlue /Silver Grey /Customized
Flange StandardPAM / IEC
AccessoriesShaft, Flange, Torque arm, etc
LubricantSynthetic Oil or Worm Gear Oil
UsageMachinery of food stuff, ceramics, chemicals, packing, dyeing, wood working, glass industries, etc
Note:
1) Please choose from the above specifications.
2) If the above options can not meet your demands, please send us your requirements(ratio, flange, mounting, application, or a picture of your old one), and we will recommond a suitable type. 

Mounting Position

Mounting Position

Flange F-FL

Flange F-FL

Position of Terminal Box

Position of Terminal Box

Position of Output Shaft

Position of Output Shaft

Double Extension Worm Shaft

Double Extension Worm Shaft

Position of Torque Arm

Position of Torque Arm

CMN-NMRV040 Worm Gear Reducer Dimensions

CMN-NMRV040 Worm Gear Reducer Dimensions CMN-NMRV040 Worm Gear Reducer Dimensions CMN-NMRV040 Worm Gear Reducer Dimensions CMN-NMRV040 Worm Gear Reducer Dimensions

CMN-NMRV Worm Gear Reducer Dimensions

CMN-NMRV Inch Series

CMN-NMRV Worm Gear Reducer DimensionsCMN-NMRV Worm Gear Reducer DimensionsCMN-NMRV Worm Gear Reducer Dimensions

Hollow Output Bore030040050063075090110130
RH0.710.841.121.241.371.521.81.93
SH0.1880.1880.250.250.250.3130.3750.375
UH0.625+0.001
0
0.75+0.001
0
1+0.001
0
1.125+0.001
0
1.25+0.001
0
1.375+0.001
0
1.625+0.001
0
1.750
VB0.831.141.281.421.561.771.972.24
Output Shaft030040050063075090110130
R0.70.831.111.231.361.511.791.92
S0.1880.1880.250.250.250.3130.3750.375
U0.6250
-0.0005
0.750
-0.0005
10
-0.0005
0
-0.0005
1.250
-0.0005
1.3750
-0.0005
1.6250
-0.0005
1.750
-0.0005
U KEY0.1875x1.1250.1875x1.50.25x1.50.25x1.8750.25x2.250.3125x2.50.375x2.750.375x2.75
UT1/4-201/4-203/8-163/8-161/2-131/2-135/8-115/8-11
V1.571.971.972.362.763.153.543.54
VA1.672.092.112.52.893.333.723.74
Y5.827.257.849.4110.512.1713.5414.17
CMN-NMRV030040050063075090110130
A2.483.073.624.414.725.516.16.69
B2.242.813.314.024.695.316.597.38
BA2.562.953.353.744.535.126.58.46
BC2.953.433.944.335.516.37.879.84
BH90 °45 °45 °45 °45 °45 °45°45 °
BK2.165 0
-0.0018
2.362 0
-0.0018
2.756 0
-0.0018
3.15 0
-0.0021
3.74 0
-0.0021
4.331 0
-0.0021
5.118 0
-0.0025
7.087 0
-0.0025
BLM6x11M6x10M8x10M8x14M8x14M10x18M10x18M12x21
C1.181.571.972.482.953.544.335.12
D1.571.972.362.833.394.065.025.81
E2.132.763.153.944.725.516.697.87
F1.732.362.763.353.543.944.534.72
G0.220.260.280.310.390.430.570.61
H0.260.260.330.330.450.510.550.63
J3.153.984.765.756.858.199.9411.52
K1.261.691.932.642.832.91--
L2.22.83.354.064.415.125.676.1
M2.282.873.434.174.495.285.836.38
N1.061.381.571.972.362.763.353.94
O3.824.785.676.858.079.3711.6113.19
P2.643.153.544.134.965.636.817.6
Q0.832.362.913.544.134.925.596.38
T1.732.172.523.153.664.024.925.51
Z2.913.633.924.715.256.096.777.09
Output FlangeAAABACADAFAGAHAKAL
030FA2.682.153.152.760.240.1645°1.969+0.0015
0
0.26
040FA2.952.644.333.740.280.1645°2.362+0.00180.35
0
FB2.953.824.333.740.280.1645°2.362+0.0018
0
0.35
FC4.533.155.51-0.350.245°3.74+0.0021
0
0.37
FD3.942.284.72-0.470.245°3.15+0.00180.35
0
050FA3.353.544.924.330.350.245°2.756+0.00180.43
0
FB3.354.724.924.330.350.245°2.756+0.0018
0
0.43
FC5.123.56.3-0.390.245°4.331+0.0021
0
0.37
FD4.532.835.51-0.570.245°3.543+0.00210.43
0
063FA4.133.237.095.590.390.2445°4.528+0.00210.43
0
FB5.914.417.095.590.390.2445°4.528+0.00210.43
0
FC6.53.867.87-0.390.245°5.118+0.0025
0
0.43
FD6.54.217.87-0.390.245°5.118+0.00250.43
0
FE5.123.176.3-0.650.245°4.331+0.00210.43
0
075FA6.54.377.876.690.510.2445°5.118+0.00250.55
0
FB5.123.546.3-0.510.2445°4.331+0.00210.55
0
090FA6.894.378.278.270.510.2445°5.984+0.00250.55
0
FB8.464.89.84-0.710.2445°7.087+0.0025
0
0.55
FC6.54.337.87-0.670.2445°5.118+0.0025
0
0.43
FD6.895.948.27-0.510.2445°5.984+0.00250.55
0
110FA9.065.1611.0210.240.590.2445°6.693+0.00250.55
0
FB9.067.0911.0210.240.590.2445°6.693+0.00250.55
0
130FA10.045.5112.611.420.590.2422.5°7.087+0.0025
0
0.63
Input Shaft030040050063075090110130
SB0.0940.1250.1880.1880.1880.1880.250.25
RB0.420.550.70.830.960.961.241.36
UB0.3750
-0.0005
0.50
-0.0005
0.6250
-0.0005
0.750
-0.0005
0.8750
-0.0005
0.8750
-0.0005
1.1250
-0.0005
1.250
-0.0005
UB KEY0.094x0.8750.125x0.8750.1875x1.1250.1875x1.50.1875x1.8750.1875x1.8750.25x2.250.25x2.5
UR-1/4-201/4-201/4-201/4-201/4-203/8-161/2-13
VN1.181.181.581.972.362.362.763.15

High Speed Extension Shaft Dimensions

High Speed Extension Shaft Dimensions

CMN-NMRVEAUVNURS2R2KEY
LengthSquare
0301.7720.3750
-0.0005
1.18-0.0930.420.8750.094
0402.0870.50
-0.0005
1.181/4-200.130.550.8750.125
0502.520.6250
-0.0005
1.581/4-200.190.71.1250.188
0632.9530.750
-0.0005
1.971/4-200.190.831.50.188
0753.5430.8750
-0.0005
2.361/4-200.190.961.8750.188
0904.2520.8750
-0.0005
2.361/4-200.190.961.8750.188
1105.3151.1250
-0.0005
2.763/8-160.251.242.250.25
1306.1021.250
-0.0005
3.151/2-130.251.362.50.25

Torque Arm Dimensions

Torque Arm Dimensions

IIAILIRIW
0252.760.690.310.590.55
0303.350.940.310.590.55
0403.941.240.390.710.55
0503.941.520.390.710.55
0635.911.930.390.710.55
0757.871.870.791.180.98
0907.872.260.791.180.98
1109.842.440.981.381.18
1309.842.720.981.381.18

Protective Cover Dimensions

Protective Cover Dimensions

CMN-NMRVQ
0301.65
0401.97
0502.28
0632.72
0752.91
0903.39
1103.7
1304.02

NEMA Flange Availability

CMN-NMRVNEMA
Flange
Input Bore
Diameter
Available Ratios
57.5101520253040506080100
03048C0.5
04056C0.625
05056C0.625
06356C0.625
140TC0.875
07556C0.625
140TC0.875
180TC1.125
09056C0.625
140TC0.875
180TC1.125
110140TC0.875
180TC1.125
210TC1.375
130140TC0.875
180TC1.125
210TC1.375

CMN-NMRV040 Worm Drive Gearbox Features

  • Compact and Durable Design
    The CMN-NMRV040 worm drive gearbox features a high-strength aluminum alloy housing, ensuring corrosion resistance and efficient heat dissipation. Its compact design allows for easy integration into space-constrained applications, providing robust performance in industries like food processing and textiles.
  • High Torque Output
    With reduction ratios ranging from 5:1 to 100:1, the CMN-NMRV040 worm reducer gearbox delivers substantial torque for low to medium-speed applications. The worm and worm wheel configuration ensures efficient power transmission, making it ideal for heavy-duty tasks requiring precise control and high force.
  • Versatile Mounting Options
    The worm gear gearbox supports multiple mounting configurations, including flange inputs like 71B5 and 63B14. This flexibility enables seamless compatibility with various motor types, such as NEMA 34 or smaller stepper and servo motors, enhancing adaptability across diverse industrial setups.
  • Smooth and Quiet Operation
    Precision-engineered worm and worm wheel components, typically made from bronze or nodular cast iron, ensure smooth and quiet performance. The CMN-NMRV040 worm gear speed reducer minimizes vibration and noise, making it suitable for noise-sensitive environments like medical or packaging equipment.
  • Self-Locking Capability
    The worm gear design provides inherent self-locking, preventing back-driving under load. This feature enhances safety in applications like hoisting or lifting, ensuring the system remains stable even when power is off, reducing the need for additional braking mechanisms.
  • Low Maintenance and Longevity
    Filled with synthetic oil, the CMN-NMRV040 worm gear reduction gearbox requires minimal maintenance while offering excellent lubrication for an extended lifespan. Its robust construction and high-quality materials ensure reliable operation under demanding conditions, reducing downtime and maintenance costs in industrial settings.

CMN-NMRV040 Worm Gear Reducer

CMN-NMRV040 Worm Reducer Gearbox Applications

  • Food Processing Industry
    The CMN-NMRV040 worm reducer gearbox is widely used in food processing for conveyors and mixers. Its corrosion-resistant aluminum housing and smooth operation ensure hygiene and reliability, meeting strict industry standards while handling precise speed control for consistent production processes.
  • Textile Manufacturing
    In textile machinery, the right angle worm gearbox drives spinning and weaving equipment. Its high torque and self-locking feature provide stable operation under varying loads, ensuring precision in fabric production, while its compact design fits seamlessly into space-constrained textile manufacturing setups.
  • Packaging Machinery
    The CMN-NMRV040 worm and wheel gearbox is ideal for packaging systems, powering rollers, and labeling machines. Its quiet operation and versatile mounting options enable integration into automated lines, delivering consistent torque for high-speed packaging tasks while maintaining reliability in demanding environments.
  • Ceramics Production
    In ceramics manufacturing, the worm gear drive gearbox supports equipment like clay mixers and kilns. Its robust construction withstands harsh conditions, while the high reduction ratios ensure precise speed control, enhancing efficiency in shaping and processing ceramic materials with minimal maintenance.
  • Material Handling Systems
    The CMN-NMRV040 worm gearbox motor is employed in material handling for conveyors and hoists. Its self-locking capability ensures safety during load lifting, while the compact design and high torque output facilitate efficient movement of goods in warehouses and logistics operations.
  • Automation and Robotics
    In automation, the worm reduction gearbox drives robotic arms and automated guided vehicles. Its compatibility with stepper and servo motors, combined with low noise and precise torque delivery, supports accurate positioning and smooth operation in advanced robotic systems across various industries.

Worm Gear Reducer

CMN-NMRV040 Worm Gear Reducer Troubleshooting

  • Excessive Noise During Operation
    Excessive noise can result from improper lubrication, misalignment of the worm and wheel, or worn-out bearings. Regularly inspect and replace worn components and ensure the gearbox is properly lubricated with the correct grade of oil to maintain smooth operation.
  • Overheating of the Gearbox
    Overheating occurs due to excessive load, improper lubrication, or insufficient ventilation. Check the load to ensure it does not exceed the gearbox's capacity. Confirm that the lubricant is at the appropriate level and that the unit has adequate airflow for cooling.
  • Oil Leakage from the Housing
    Oil leaks are often caused by damaged seals, loose bolts, or overfilling of lubricant. Inspect the seals for any wear or damage, tighten all bolts to recommended torque settings, and ensure the correct amount of lubricant is used to prevent overflow.
  • Reduced Torque Output
    A drop in torque output can be due to worn gear teeth, excessive backlash, or improper engagement of the worm and wheel. Inspect the gear teeth for wear, adjust the backlash if necessary, and ensure proper alignment of all internal components.
  • Gearbox Not Rotating Smoothly
    If the gearbox rotates unevenly or gets stuck, it could be due to debris inside the housing, damaged gears, or insufficient lubrication. Disassemble the unit for cleaning, inspect for damaged components, and reassemble with proper lubrication to restore smooth operation.
  • Unusual Vibrations During Use
    Unusual vibrations may result from unbalanced loads, misalignment, or damaged internal components. Check the load balance to ensure even distribution, verify alignment between the gearbox and connected machinery, and replace any damaged gears or bearings to eliminate vibrations.

Worm Gear Reducer Troubleshooting

Additional information

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