NMRV-F Flange Output Worm Gearbox
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Technical Specifications
A compact, reliable gearmotor unit combining an NMRV series worm gear reducer with a high-efficiency electric motor. Designed for a wide range of industrial applications requiring high torque, low speed, and self-locking capabilities.
This NMRV worm gearmotor is engineered for stable right-angle power transmission, smooth operation, and easy integration. Ideal for conveyors, packaging lines, automation equipment, and general speed-reduction duties.
1. Core Performance Parameters
Key parameters and ranges for quick selection.
| Parameter | Value / Description |
|---|---|
| Model Series | Nmrv 040 / 050 / 063 / 075 / 090 |
| Gear Ratio Range | 5:1 to 100:1 (Standard ratios: 7.5–100:1) |
| Rated Output Torque | 3.2 N·m ~ 1190 N·m (Varies by model and ratio) |
| Applicable Motor Power | 0.09 kW ~ 7.5 kW (Common range) |
| Transmission Efficiency | 50% ~ 90% (Efficiency decreases with higher ratios) |
| Key Features | High gear ratio, smooth operation, self-locking function |
2. Mechanical Design & Materials
Core components and mounting interface.
Core Components
- Housing: Aluminum alloy (lightweight, good heat dissipation, corrosion resistant)
- Worm Wheel: Wear-resistant phosphor bronze (industry standard)
- Worm: Surface-hardened alloy steel (e.g., 20CrMnTi)
Interface & Mounting
- Output: Solid shaft output
- Input: IEC standard flange (B5 / B14)
- Mounting: Foot mounted
3. Mated Motor Specifications
Motor type and environment ratings.
Motor Type
- Type: Three-phase/single-phase asynchronous motor (IEC standard)
- Poles: Typically 4-pole (input speed ~1400–1500 RPM)
- Efficiency: Various efficiency classes available (IE1, IE2, IE3)
Protection & Environment
- IP Rating: IP55 (dust and water jet proof)
- Insulation Class: Class F (155°C)
- Ambient Temperature: -10°C to +40°C
4. Typical Application Areas
Common scenarios where this reducer is used.
- Packaging & Conveying
- Food & Chemical Machinery
- Ceramic & Glass Machinery
- Automation & Mixing Equipment
NMRV-F Flange Output Selection Guide
NMRV-F is the flange-output configuration in the compact NMRV family. It is intended for equipment that requires the reducer output to connect through a matching flange-supported machine interface.
Where NMRV-F Fits Best
- Machines designed around a flange-supported output connection.
- Compact installations where the driven interface matches the NMRV-F drawing.
- Replacement projects that must preserve an existing flange-output arrangement.
When NMRV-F May Not Be the Right Choice
Compare NMRV when a standard output arrangement is required. Compare NMRV-VS when the main requirement is an external input shaft. Do not select NMRV-F when the driven-machine flange, shaft center, fastening pattern, or support arrangement cannot be matched to the approved drawing.
NMRV-F Model FAQ
What is the defining interface of NMRV-F?
The defining selection feature is the flange-output connection to the driven equipment.
Which flange details must be confirmed?
Confirm the flange dimensions, fixing-hole pattern, pilot or locating interface, shaft or bore dimensions, and available installation clearance.
How is NMRV-F different from NMRV-VS?
NMRV-F is differentiated by its output flange, while NMRV-VS is differentiated by its external input-shaft arrangement.
What information should be supplied for a quotation?
Send the frame size, required ratio, motor specification, mounting position, output-interface drawing, quantity, operating schedule, and application details.
Final selection and installation interfaces must be confirmed against the approved manufacturer drawing.
Engineering Data and Selection Verification
Use the information on this NMRV-F Flange Output Worm Gearbox page for preliminary comparison. Final dimensions, materials, interfaces and operating limits must be confirmed against the current manufacturer catalog or an approved project drawing before purchase, fabrication or installation.
Table scope: each parameter row applies only to the model or size identified in that row. Do not interpolate, combine or transfer values between sizes without manufacturer confirmation.
Required Project Inputs
- Input speed and motor information
- Required output speed or target ratio
- Driven load type, start-stop pattern and operating schedule
- Mounting position, shaft direction and available installation space
- Site environment and maintenance-access requirements
Interfaces to Confirm
- Model size and mounting-hole pattern
- Input and output shaft or bore dimensions
- Flange, keyway, coupling and guarding arrangement
- Shaft center position and surrounding clearance
- Lubrication and inspection access
Reproducible Speed and Ratio Check
Required ratio: input speed ÷ target output speed. Expected output speed: input speed ÷ selected ratio. Record the source of each input value and use consistent units.
This arithmetic check does not confirm torque, power, service factor, temperature, efficiency or life. Ask ZPGear to verify those items from the current manufacturer data for the selected model and operating condition.
Source record: keep the manufacturer name, catalog or drawing number, revision date, selected model size, project inputs and final approval sheet with the order documentation. Send the project information to ZPGear for confirmation.