Tec FCNDK25 40:1 Worm Gearbox – 11mm Bore, 56B14 Input

Built around the FCNDK25 modular worm gearbox platform, this 40:1 version gives buyers a compact right-angle drive with 11mm hollow bore output and 56B14 motor input compatibility. It is commonly selected for feed systems, small lifts, dosing equipment, and slow-running automation where slower output speed with stronger torque multiplication is needed without overcomplicating the drive layout.

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Gearbox Overview

The FCNDK25 size sits in the compact part of the range and uses a pressure die-cast aluminium housing. In this configuration, the gearbox is suited to installations where a 56B14 motor input and 11mm output bore are already specified, while the 40:1 ratio delivers approximately 35rpm output speed from a 4 pole 1400rpm motor.

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Why Choose This Configuration?

This higher-ratio version is normally selected where the application needs stronger torque multiplication and slower shaft speed than lower-ratio options can provide. It works well for feeders, mixers, transfer drives, and machinery with more demanding load conditions.

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Technical Details

Gearbox series: Tec FCNDK
Gearbox size: FCNDK25
Gear ratio: 40:1
Nominal output speed: 35rpm (with 4 pole 1400rpm motor, sf = 1)
Rated input power: 0.08kW (catalogue performance figure, sf = 1)
Nominal output torque: 13Nm
Maximum radial load Fr2: 878N
Output bore: 11mm hollow bore
Motor input: 56B14 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: 0.7kg

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Internal Links & Compatible Options

Need a different ratio? Explore the closest ratios around 40:1 in the FCNDK25 size.

Need a different gearbox size? Explore nearby 40:1 FCNDK sizes.

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

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Frequently Asked Questions

What output speed does a 40:1 FCNDK gearbox give?

In the TEC catalogue performance table, this FCNDK25 40:1 configuration is shown with a nominal output speed of about 35rpm 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 feed systems, small lifts, dosing equipment, and slow-running automation, and other machinery needing slower output speed with stronger torque multiplication in a compact right-angle drive.

Is the housing aluminium or cast iron?

For FCNDK25, 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 56B14, and nearby compatible options are linked above.