Tec FCNDK75 20:1 Worm Gearbox – 28mm Bore, 80B14 Input

This Tec FCNDK75 20:1 worm gearbox combines a 28mm hollow bore output with a 80B14 IEC input flange in a proven modular housing. It is a strong choice for mixers, conveyors, general process machinery, and industrial handling applications where buyers need balanced reduction with practical output speed and useful torque increase in a compact right-angle package.

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Gearbox Overview

Within the TEC FCNDK series, this version is aimed at machines needing a combination of 80B14 input, 28mm hollow output, and a nominal output speed around 70rpm with a 4 pole motor. The modular format also supports multiple mounting positions including B3, B6, B7, B8, V5, and V6.

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Why Choose This Configuration?

This mid-range ratio is commonly chosen when buyers need a balanced reduction that slows the output without making the machine excessively slow. It is a strong all-round option for general machinery, conveyors, packaging equipment, and process systems.

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Technical Details

Gearbox series: Tec FCNDK
Gearbox size: FCNDK75
Gear ratio: 20:1
Nominal output speed: 70rpm (with 4 pole 1400rpm motor, sf = 1)
Rated input power: 1.90kW (catalogue performance figure, sf = 1)
Nominal output torque: 210Nm
Maximum radial load Fr2: 3862N
Output bore: 28mm hollow bore
Motor input: 80B14 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: 9kg

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Internal Links & Compatible Options

Same gearbox size and ratio, different motor inputs: jump to the Tec FCNDK75 20:1 Worm Gearbox input option you need.

Need a different ratio? Explore the closest ratios around 20:1 in the FCNDK75 size.

Need a different gearbox size? Explore nearby 20:1 FCNDK sizes.

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

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Frequently Asked Questions

What output speed does a 20:1 FCNDK gearbox give?

In the TEC catalogue performance table, this FCNDK75 20:1 configuration is shown with a nominal output speed of about 70rpm 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 mixers, conveyors, general process machinery, and industrial handling applications, and other machinery needing balanced reduction with practical output speed and useful torque increase in a compact right-angle drive.

Is the housing aluminium or cast iron?

For FCNDK75, 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 80B14, and nearby compatible options are linked above.