Tec FCNDK63 7.5:1 Worm Gearbox – 25mm Bore, 71B14 Input

Built around the FCNDK63 modular worm gearbox platform, this 7.5:1 version gives buyers a compact right-angle drive with 25mm hollow bore output and 71B14 motor input compatibility. It is commonly selected for conveyors, light process machinery, transfer drives, and packaging lines where higher output speed with lighter torque multiplication 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 71B14 motor input and 25mm output bore are already specified, while the 7.5:1 ratio delivers approximately 187rpm output speed from a 4 pole 1400rpm motor.

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Why Choose This Configuration?

Buyers generally choose this lower-ratio configuration where they want to keep more output speed while still gaining useful reduction and torque multiplication. It is well suited to conveyor, transfer, packaging, and handling drives where faster shaft speed is preferred over very high reduction.

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Technical Details

Gearbox series: Tec FCNDK
Gearbox size: FCNDK63
Gear ratio: 7.5:1
Nominal output speed: 187rpm (with 4 pole 1400rpm motor, sf = 1)
Rated input power: 2.80kW (catalogue performance figure, sf = 1)
Nominal output torque: 126Nm
Maximum radial load Fr2: 2359N
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: 6.2kg

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Internal Links & Compatible Options

Same gearbox size and ratio, different motor inputs: jump to the Tec FCNDK63 7.5:1 Worm Gearbox input option you need.

Need a different ratio? Explore the closest ratios around 7.5:1 in the FCNDK63 size.

Need a different gearbox size? Explore nearby 7.5:1 FCNDK sizes.

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

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Frequently Asked Questions

What output speed does a 7.5:1 FCNDK gearbox give?

In the TEC catalogue performance table, this FCNDK63 7.5:1 configuration is shown with a nominal output speed of about 187rpm 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 conveyors, light process machinery, transfer drives, and packaging lines, and other machinery needing higher output speed with lighter torque multiplication 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 71B14, and nearby compatible options are linked above.