Tec FCNDK63 20:1 Worm Gearbox – 25mm Bore, 90B14 Input

Built around the FCNDK63 modular worm gearbox platform, this 20:1 version gives buyers a compact right-angle drive with 25mm hollow bore output and 90B14 motor input compatibility. It is commonly selected for general machinery, conveyor systems, packaging equipment, and material handling where balanced reduction with practical output speed and useful torque increase is needed without overcomplicating the drive layout.

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Gearbox Overview

The FCNDK63 size sits in the mid part of the range and uses a pressure die-cast aluminium housing. In this configuration, the gearbox is suited to installations where a 90B14 motor input and 25mm output bore are already specified, while the 20:1 ratio delivers approximately 70rpm output speed from a 4 pole 1400rpm motor.

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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: FCNDK63
Gear ratio: 20:1
Nominal output speed: 70rpm (with 4 pole 1400rpm motor, sf = 1)
Rated input power: 1.20kW (catalogue performance figure, sf = 1)
Nominal output torque: 131Nm
Maximum radial load Fr2: 3272N
Output bore: 25mm hollow bore
Motor input: 90B14 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: 6.2kg

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Internal Links & Compatible Options

Same gearbox size and ratio, different motor inputs: jump to the Tec FCNDK63 20:1 Worm Gearbox input option you need.

Need a different ratio? Explore the closest ratios around 20:1 in the FCNDK63 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 FCNDK63 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 general machinery, conveyor systems, packaging equipment, and material handling, 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 FCNDK63, 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 90B14, and nearby compatible options are linked above.