Tec FCNDK50 80:1 Worm Gearbox – 25mm Bore, 71B14 Input

This Tec FCNDK50 80:1 worm gearbox is a modular right-angle reduction unit designed for applications needing very slow output speed for high-reduction, higher-torque applications. With its 25mm hollow bore output and 71B14 IEC motor input, it suits agitators, dosing systems, slow conveyors, and machinery requiring substantial speed reduction where dependable mechanical reduction and compact layout are important.

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Gearbox Overview

This gearbox uses the TEC FCNDK modular format, allowing straightforward matching to IEC motors while keeping a compact right-angle footprint. The 80:1 reduction is a practical choice where buyers want an output speed of around 17rpm from a 4 pole motor, together with a 25mm hollow bore and 71B14 motor interface.

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Why Choose This Configuration?

This very high-ratio configuration is intended for applications needing very slow output speed and substantial reduction. It is a sensible choice for controlled positioning, heavier-duty slow-running drives, and equipment where higher torque at lower speed is more important than fast output.

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Technical Details

Gearbox series: Tec FCNDK
Gearbox size: FCNDK50
Gear ratio: 80:1
Nominal output speed: 17rpm (with 4 pole 1400rpm motor, sf = 1)
Rated input power: 0.22kW (catalogue performance figure, sf = 1)
Nominal output torque: 64Nm
Maximum radial load Fr2: 3973N
Output bore: 25mm hollow bore
Motor input: 71B14 IEC flange input
Housing material: pressure die-cast aluminium housing
Mounting positions: B3, B6, B7, B8, V5, V6
Lubrication: supplied with synthetic long-life oil grade ISO VG 320 and does not require a breather plug
Approximate gearbox weight: 3.5kg

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Internal Links & Compatible Options

Same gearbox size and ratio, different motor inputs: jump to the Tec FCNDK50 80:1 Worm Gearbox input option you need.

Need a different ratio? Explore the closest ratios around 80:1 in the FCNDK50 size.

Need a different gearbox size? Explore nearby 80:1 FCNDK sizes.

Helpful calculators:
Gearbox Ratio & Speed Calculator |
Output Torque Calculator

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Frequently Asked Questions

What output speed does a 80:1 FCNDK gearbox give?

In the TEC catalogue performance table, this FCNDK50 80:1 configuration is shown with a nominal output speed of about 17rpm when used with a 4 pole 1400rpm motor at service factor 1.

What is this gearbox commonly used for?

This gearbox is commonly used for agitators, dosing systems, slow conveyors, and machinery requiring substantial speed reduction, and other machinery needing very slow output speed for high-reduction, higher-torque applications in a compact right-angle drive.

Is the housing aluminium or cast iron?

For FCNDK50, the catalogue lists the housing as pressure die-cast aluminium housing.

Does this gearbox come with lubricant?

According to the TEC FCNDK catalogue summary, this size is supplied with synthetic long-life oil grade ISO VG 320 and does not require a breather plug.

Can I fit different IEC motor inputs to the FCNDK range?

Yes. The FCNDK range is based on a modular format system and is designed to accept IEC motor inputs. This product is configured for 71B14, and nearby compatible options are linked above.