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Multiple ratios NMRV Worm Gear Box with motor

Features:
1) Aluminum alloy die-casted gearbox
2) Compact structure saves mounting space
3) Highly accurate
4) Runs forward and backward
5) High overload capacity
6) Stable transmission with reduced vibration and noise
Characteristics:
1. High quality aluminum alloy quadrate case .
2. High efficiency.
3. Small size, compact constructure and light weight.
4. Combination of two single-step worm gear speed reducers, meeting the requirements of super speed ratio.
Technical Data:
1. Input power: 0.06kW-15kW
2. Output torque: 7.8-1195N.m
3. Speed ratio: (5-100) 5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100
4. Adapt for IEC, NEMA, SERVO

Color:	bule gray silver
Material:	aluminum case
product category:	NMRV/SJ25/FCNDK25/JRSTD025
Production Capacity:	25000 Pieces Per Month
HS Code:	8483409000
Transport Package:	Carton
Size:	030-150
Availability:

Quantity:



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Model:
NMRV030-150
Brand:
SL
Code:
8483409000

Product Description

Product Overview: Multiple Ratios NMRV Worm Gear Box with Motor
The Multiple Ratios NMRV Worm Gear Box with Motor is engineered to deliver precise torque conversion and reliable rotational control across demanding industrial environments. By integrating a meticulously machined worm gear mechanism with a robust electric motor unit, this transmission solution ensures consistent power delivery while minimizing mechanical wear. Operators will immediately notice the reduced vibration and exceptionally quiet operation—a direct result of the optimized gear meshing and strict concentricity tolerances maintained during manufacturing. Whether deployed in continuous-duty conveyor systems or precision-indexed packaging lines, this gear box provides the operational stability required to maintain peak facility output and eliminate unexpected downtime.

Designed with adaptability in mind, the NMRV series accommodates a wide spectrum of speed reduction requirements. The exterior features a smooth, thermally efficient surface that actively dissipates heat during extended operational cycles, protecting internal components from thermal degradation and extending the overall service life of the drive system.

Detailed view of the worm gear reducer output shaft and mounting points

Speed Reducer Worm Gearbox designed for heavy-duty industrial machinery

Specifications of Worm Gear Reducer NMRV 25 30 40 50 63 75 90 110 130 150

item	Worm Gear Reducer Worm Gearbox
Warranty	1 Year
Applicable Industries	Manufacturing Plant, Food & Beverage Factory, Farms, Construction works , Energy & Mining, Other
Weight (KG)	6.2
Customized support	OEM
Place of Origin	China
	Zhejiang
Brand Name	Fixedstar
Gearing Arrangement	Worm
Output Torque	2.6-1650Nm
Input Speed	1400rpm
Output Speed	0.5-186.7rpm
Product name	Worm Gear Reducer Worm Gearbox
Size	25 30 40 50 63 75 90 110 130 150
Ratio	5/7.5/10/15/20/25/30/40/50/60/80/100
Worm Wheel Material	12-2 Tin Bronze
Worm Shaft Material	20CrMnTi
Bearing	C&U
Oil Seal	SKF NAK
Lubricant Oil	Synthetic Oil
Color	Blue(RAL5010)/Silver Grey (RAL9022)/Custom-Made

Description of Worm Gear Reducer NMRV 25 30 40 50 63 75 90 110 130 150

Engineered for exceptional durability, the reducer models from 25 to 90 are constructed from premium aluminum alloy die-casting material. This structural choice provides a lightweight yet rigid framework that completely resists rusting, ensuring the exterior remains pristine even in damp environments. For heavier torque demands, models 110 through 150 utilize rugged cast iron housings, offering the sheer mass and structural integrity required to absorb heavy shock loads without deformation. Both housing types are coated with an anti-corrosive epoxy resin, giving them a smooth, professional finish that is easy to wipe down and maintain.

Industry Standardization and Compatibility

The physical footprint of these gearboxes is meticulously designed to match industry-standard dimensions. This means they serve as direct, drop-in replacements for mainstream NRV and NMRV series reducers currently in the market. Facility managers can seamlessly upgrade their existing drive systems or replace worn-out units without the need to modify mounting plates or alter shaft alignments, drastically reducing equipment upgrade costs and minimizing maintenance downtime. Furthermore, these units comply with stringent international gear bearing and transmission standards, including ISO, DIN, and AGMA, guaranteeing global procurement compliance and operational safety.

Advanced Sealing and Modular Versatility

To combat harsh industrial conditions, the internal gearing is protected by premium O-rings and multiple mechanical seals, achieving protection levels up to IP67. Whether exposed to fine metallic dust, abrasive particles, or heavy moisture, the internal synthetic lubricant remains uncontaminated.

The modular architecture allows for omnibearing installation, meaning the gearbox can be mounted in virtually any orientation. A wide variety of connecting structures are available to meet unique mechanical requirements:

Multiple output flange configurations for seamless integration.
Customizable torque arms to prevent rotational drift.
Options for both solid and hollow shafts depending on the driven load.
Protective covers and food-grade lubricant options for specialized sectors.

*Inch sizes reducer are available upon request to accommodate specific regional tooling standards.

Company Profile & Manufacturing Excellence

Behind every NMRV Worm Gear Box is a rigorous manufacturing and quality control process designed to eliminate mechanical failure points. The core transmission components—specifically the 20CrMnTi worm shaft and the 12-2 Tin Bronze worm wheel—are machined using specialized CNC equipment. This precision machining ensures exact tooth geometry, which translates directly to a massive output torque capacity (ranging from 2.6 to 1650Nm) and superior radiating efficiency.

Before any unit leaves the facility, it undergoes dynamic torque testing and gear root stress evaluations. This strict adherence to quality control guarantees that the strong loading capacity is not just theoretical, but proven. The result is a stable transmission system that operates with remarkably less vibration and noise, extending the overall service life of the entire mechanical assembly. Furthermore, our facilities maintain ATEX explosion-proof certifications, ensuring our production and the resulting products meet the highest safety benchmarks required for hazardous environments.

Precision CNC machining process for worm gear components

Quality control testing facility for dynamic torque measurement

Assembled NMRV gearboxes undergoing final inspection

Industrial warehouse storing finished worm gear reducers

Engineering team reviewing gear root stress test data

Automated assembly line for aluminum alloy die-casting models

Packaging and logistics preparation for global shipment

Close-up of the synthetic oil filling station

Heavy-duty cast iron models 110-150 awaiting surface treatment

Detailed cross-section view of the C&U bearings and SKF NAK oil seals

Factory overview highlighting the stringent environmental controls

Certifications and compliance documents for international standards

Extreme Application Scenarios

Industrial environments are rarely forgiving. The Multiple Ratios NMRV Worm Gear Box is specifically engineered to thrive where standard transmissions fail. By leveraging customized material selections and specialized lubrication protocols, these units deliver unwavering reliability across a multitude of extreme operational contexts:

Food & Beverage Processing: Equipped with optional food-grade synthetic oils and wash-down ready protective coatings, preventing contamination while withstanding harsh chemical cleaning agents.
Flammable & Explosive Zones: Fully compliant with ATEX directives, featuring spark-resistant external components and thermal regulation to prevent ignition in volatile chemical or petrochemical plants.
Heavy-Duty Mining & Quarrying: The robust cast-iron models (110-150) excel in high-vibration, high-dust environments, utilizing enhanced SKF NAK oil seals to block abrasive particulates from degrading the gear mesh.
Marine & Deep-Sea Applications: Treated with marine-grade anti-corrosive epoxy and sealed to IP67 standards, ensuring salt spray and extreme humidity cannot compromise the internal mechanics.

No matter the severity of the operating conditions, this modular transmission solution can be tailored to ensure continuous, stable power delivery, safeguarding your critical infrastructure against premature failure.

Various sizes of the NMRV Worm Gear Box ready for extreme application deployment