GBC-NRV-F Single Shaft Input Worm Gearbox with Square Flange Output

✅ Square Flange Output (FA / FB)

Provides a rigid, precisely aligned bolt-on interface to downstream equipment — eliminating coupling misalignment and reducing vibration compared to shaft-to-shaft connections.

✅ Self-Locking Worm Drive

At higher ratios, the worm mechanism prevents back-driving of the output shaft, removing the need for external braking devices and lowering overall system cost.

✅ Lightweight Aluminum Alloy Housing

Die-cast aluminum (sizes 025–090) reduces structural load by up to 50% compared to cast iron, while providing excellent thermal conductivity for superior heat dissipation.

✅ Hardened 20CrMnTi Worm Shaft

Carburized and quenched to 56–62 HRC with 0.3–0.5 mm carburized layer, ensuring exceptional wear resistance over millions of duty cycles.

✅ Low Noise & Smooth Transmission

Tin-bronze gear meshing with hardened steel worm produces exceptionally quiet operation — ideal for food halls, laboratories, and packaging facilities.

✅ Wide Ratio Range 5:1 to 100:1

Covers virtually all speed reduction needs in a single-stage unit. For ratios above 100:1, combine with a second GBC-NRV or GBC-NMRV stage.

✅ IP55 Dust & Moisture Protection

Sealed housing resists dust ingress and water jets, suitable for food processing, outdoor installations, and washdown environments.

✅ Universal IEC Motor Compatibility

Extensive range of IEC flange options from 56B5 to 160B5 enables direct connection to virtually any standard motor.

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Food & Beverage Processing

Conveyor drives, mixing machines, bottling lines, and bakery equipment requiring flange-mounted output for hygienic, vibration-free operation.

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Packaging Machinery

Carton erectors, palletizers, shrink wrappers, and labelling machines where the square flange output ensures precise mechanical alignment.

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Industrial Automation

Rotary indexing tables, robotic arm joints, CNC auxiliary drives, and pick-and-place units requiring compact size and backlash control.

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Textile Equipment

Spinning frames, looms, dyeing machines, and fabric winding systems where smooth power delivery protects delicate materials.

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Ceramics & Woodworking

Kiln drives, extruders, CNC routers, and sawmill conveyors operating under heavy loads and dusty conditions.

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Environmental Engineering

Wastewater treatment aerators, sludge scrapers, and pollution control equipment exposed to moisture and chemicals.

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Warehousing & Logistics

AS/RS systems, sorting machines, and small conveyors in distribution centres.

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Chemical & Dyeing Industry

Agitators, mixers, pumps, and reactor drives where IP55 protection guards against corrosive environments.

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"The square flange output on the GBC-NRV-F075 gave us a much more rigid connection than our previous shaft-coupled setup. Vibration dropped noticeably and we eliminated two alignment shims per unit. Very satisfied with the build quality."

— Carlos M., Maintenance Supervisor,

Packaging Machinery OEM · Mexico

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"We ordered 60 GBC-NRV-F050 units with FB long flanges for vertical conveyor tensioners. The self-locking function means no separate brake, and the flange bolt pattern was a perfect match for our existing frames. Lead time was 10 days."

— Elena V., Design Engineer,

Material Handling Systems · Poland

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"Excellent price-to-performance ratio. The aluminum housing keeps the weight manageable for our overhead-mounted application, and the FA flange simplified our installation enormously."

— James T., Project Manager,

Food Processing Equipment · Australia

⚙️ GBC-NRV Shaft Input Worm Gearbox

Standard shaft-input worm reducer for coupling, belt, or chain-driven applications without a direct motor flange.

🔄 GBC-NMRV Flange Input Worm Gearbox

IEC-standard flange-input worm gear reducer for direct motor mounting — plug-and-play drive solution.

⚡ Three-Phase AC Induction Motors

IEC-standard electric motors from 0.06 kW to 15 kW for direct coupling with GBC worm gearboxes.