NMRV Series Worm Self-Locking Speed Reducer Gearbox

The NMRV Series Worm Self-Locking Speed Reducer Gearbox is designed for efficient power transmission in a wide range of industrial applications. It features a compact and robust design, providing high torque output with low input speeds. Available in 11 types of gear reducers, this series is customizable to meet diverse customer requirements, offering a power range from 0.06 kW to 15 kW. With a broad selection of reduction ratios and high efficiency, this gearbox ensures reliable and durable performance.

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Product Type	NMRV	Ratios[i]	30
Input speed [η1]	1400	Efficiency [η]	60%
Machine base specifications	025-150 Total 10 types	Transfer power	60W-15kW
Speed ratio range	A single frame has 12 reduction ratios from 5:1 to 100:1

Product Features
• Housing:
○ Frames 025–105: Lightweight, rust-resistant aluminum alloy.
○ Frames 110–150: Cast iron for superior durability and reliability.
• Worm and Worm Gear:
○ The worm is made of high-quality alloy material and undergoes surface hardening, with a tooth surface hardness of 56–62 HRC.
○ The worm gear is manufactured from wear-resistant tin bronze for excellent durability and longevity.
• Self-locking:
○ Single-stage worm gear ratios offer excellent self-locking characteristics.
○ Multi-stage ratios reduce self-locking, improving transmission efficiency without compromising overall performance.

Product Performance
• Power Range: 0.06 kW to 15 kW
• Maximum Output Torque: 1300 Nm
• Combination Option: Can be combined in a double RV configuration, providing a gear ratio range of 7.5:1 to 5000:1 for high flexibility.

Product Advantages
• High Efficiency: The high efficiency of the NMRV Series ensures lower energy consumption while delivering superior power transfer.
• Durability: The use of cast iron and high-quality alloys ensures a long service life even in demanding environments.
• Compact Design: The lightweight yet durable housing makes the NMRV Series ideal for space-limited applications.
• Versatility: With a wide range of reduction ratios and customizable power options, it is suitable for a variety of industrial needs.
• Self-locking Capability: Excellent self-locking functionality in single-stage gear configurations, improving operational safety and reliability.

Applications
The NMRV Series Worm Self-Locking Speed Reducer Gearbox is ideal for various applications in industries such as:
• Conveyor Systems: Used in material handling, transportation, and packaging systems.
• Pumps and Mixers: Suitable for fluid handling and chemical processing applications.
• Textile Industry: Providing power for machines requiring high torque and low speed.
• Agricultural Equipment: Employed in machinery like tractors, harvesters, and feed systems.
• Mining and Cement Industries: For heavy-duty equipment requiring robust power transmission solutions.

Working Machine Coefficient
Working Machine		Daily working hours			Working Machine		Daily working hours
Working Machine		≤0.5h	0.5-10h	>10h	Working Machine		≤0.5h	0.5-10h	>10h
Sewage Treatment	Thickener (Central Drive)	-	-	1.2	Metal Processing	Reversing Slab Mill	-	2.5	2.5
	Filter Press	1	1.3	1.5		Reversing Wire Mill	-	1.8	1.8
	Flocculator	0.8	1	1.3		Reversing Sheet Mill	-	2	2
	Aerator	-	1.8	2		Reversing Plate Mill	-	1.8	1.8
	Collection Equipment	1	1.2	1.3		Roll Gap Adjustment Drive	0.9	1	-
	Longitudinal/Rotary Combined Collector	1	1.3	1.5	Conveying Machinery	Bucket Elevator	-	1.2	1.5
	Pre-thickener	-	1.1	1.3		Winch	1.4	1.6	1.6
	Screw Pump	-	1.3	1.5		Hoist	-	1.5	1.8
	Water Turbine	-	-	2		Belt Conveyor < 150kw	1	1.2	1.3
	Centrifugal Pump	1	1.2	1.3		Belt Conveyor ≥150kw	1.1	1.3	1.5
	Positive Displacement Pump (1 Cylinder)	1.3	1.4	1.8		Freight Elevator*	-	1.2	1.5
	Positive Displacement Pump (>1 Cylinder)	1.2	1.4	1.5		Passenger Elevator*	-	1.5	1.8
	Bucket Conveyor	-	1.6	1.6		Scraper Conveyor	-	1.2	1.5
	Tilting Device	-	1.3	1.5		Escalator	-	1.2	1.4
	Caterpillar Travel Gear	1.2	1.6	1.8		Rail Traveling Mechanism	-	1.5	-
	Bucket Wheel Excavator (for Pickup)	-	1.7	1.7	Frequency Conversion Device		-	1.8	2
	Bucket Wheel Excavator (for Bulk Material)	-	2.2	2.2	Reciprocating Compressor		-	1.8	1.9
	Shredder / Chopper	-	2.2	2.2	Hoisting Machinery	Slewing Mechanism	1	1.4	1.8
	Traveling Mechanism*	-	1.4	1.8		Luffing Mechanism	1	1.25	1.5
	Plate Bending Machine*	-	1	1		Traveling Mechanism	1.5	1.75	2
Chemical Industry	Extruder	-	-	1.6		Hoisting Mechanism	1	1.25	1.5
	Slurry Mixer	-	1.8	1.8		Jib Crane	1	1.25	1.6
	Rubber Calender	-	1.5	1.5	Cooling Towers	Cooling Tower Fan	-	-	2
	Cooling Drum	-	1.3	1.4	Cooling Towers	Fan (Axial and Centrifugal)	-	1.4	1.5
	Mixer (Uniform Media)	1	1.3	1.4	Sugar Production	Cane Knife*	-	-	1.7
	Mixer (Non-uniform Media)	1.4	1.6	1.7	Sugar Production	Cane Mill	-	-	1.7
	Agitator (Uniform Density)	1	1.3	1.5	Beet Sugar Production	Beet Slicer	-	-	1.2
	Agitator (Non-uniform Density)	1.2	1.4	1.6		Extractor, Mechanical Refrigerator, Cooker	-	-	1.4
	Agitator (Uneven Gas Absorption)	1.4	1.6	1.8		Beet Washing Machine	-	-	1.5
	Oven / Drying Furnace	1	1.3	1.5		Beet Crusher	-	-	1.5
	Centrifuge	1	1.2	1.3	Paper Machinery	Various Types**	-	1.8	2
Metal Processing	Tilting Machine	1	1	1.2	Paper Machinery	Pulper Drive	2	2	2
	Steel Pusher	1	1.2	1.2	Centrifugal Compressor		-	1.4	1.5
	Winding Machine	-	1.6	1.6	Cableways	Freight Cableway	-	1.3	1.4
	Cooling Bed Cross Transfer	-	1.5	1.5		To-and-fro Aerial Ropeway	-	1.6	1.8
	Roller Straightener	-	1.6	1.6		T-bar Lift	-	1.3	1.4
	Roller Table (Continuous)	-	1.5	1.5		Continuous Ropeway	-	1.4	1.6
	Roller Table (Intermittent)	-	2	2	Cement Industry	Concrete Mixer	-	1.5	1.5
	Reversing Tube Mill	-	1.8	1.8		Crusher*	-	1.2	1.4
	Shearing Machine (Continuous)*	-	1.5	1.5		Rotary Kiln	-	-	2
	Shearing Machine (Crank Type)*	1	1	1		Tube Mill	-	-	2
	Continuous Casting Drive	-	1.4	1.4		Separator	-	1.6	1.6
	Reversing Roughing Mill	-	2.5	2.5		Roller Press	-	-	2

Deku Intelligent Drive (Zhejiang) Co., Ltd.

27+

Years Industry Experience
150000+

Factory Area
450+

Skillful Employees
18+

Advanced Production Line

Deku Intelligent Drive is a manufacturing plant specializing in general hardened gear reducers. The main products are: DPK series bevel gear reducer, DPR series coaxial helical gear reducer DPF series parallel shaft helical gear reducer., DPS series helical gear worm gear reducer, non-standard gear reducer and other four series of hundreds of varieties. We are Wholesale NMRV Series Worm Self-Locking Speed Reducer Gearbox Manufacturers and China NMRV Series Worm Self-Locking Speed Reducer Gearbox Exporter.

Deku Intelligent Drive has introduced the international technology of the reducer group and integrated the current top supply chain of gear processing. box processing and motor supplier, making each gear of the German Deku Intelligent Drive perfect and achieve The highest factory standard for the reducer industry Deku Intelligent Drive ultimate pursuit of product quality, and first introduced the industry's personalized service content and long warranty time.

Due to the integration of the Deku Intelligent Drive supply chain and the high cost performance of the Deku Intelligent Drive the quality of the supply chain is strictly controlled to create the high quality of the Deku Intelligent Drive Therefore, since the establishment of the Deku Intelligent Drive, it has quickly become the preferred brand of the mechanical transmission industry.

HONOR & CERTIFICATE

Our products have obtained, include EC-Type Examination Certificate, BV, MODE, DNV, GL Certificate, EC Attestation of Conformity, Certificate of Type Approval for Marine Product and Lloyd’s Register Quality Assurance.