Tec FCNDK75 40:1 Worm Gearbox – 28mm Bore, 90B14 Input

This Tec FCNDK75 40:1 worm gearbox combines a 28mm hollow bore output with a 90B14 IEC input flange in a proven modular housing. It is a strong choice for feed screws, heavier conveyors, mixers, and process machinery requiring stronger torque output where buyers need slower output speed with stronger torque multiplication in a compact right-angle package.

---

Gearbox Overview

Within the TEC FCNDK series, this version is aimed at machines needing a combination of 90B14 input, 28mm hollow output, and a nominal output speed around 35rpm with a 4 pole motor. The modular format also supports multiple mounting positions including B3, B6, B7, B8, V5, and V6.

---

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.

---

Technical Details

Gearbox series: Tec FCNDK
Gearbox size: FCNDK75
Gear ratio: 40:1
Nominal output speed: 35rpm (with 4 pole 1400rpm motor, sf = 1)
Rated input power: 1.10kW (catalogue performance figure, sf = 1)
Nominal output torque: 216Nm
Maximum radial load Fr2: 4865N
Output bore: 28mm 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: 9kg

---

Internal Links & Compatible Options

Same gearbox size and ratio, different motor inputs: jump to the Tec FCNDK75 40:1 Worm Gearbox input option you need.

Need a different ratio? Explore the closest ratios around 40:1 in the FCNDK75 size.

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

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

---

Frequently Asked Questions

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

In the TEC catalogue performance table, this FCNDK75 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 screws, heavier conveyors, mixers, and process machinery requiring stronger torque output, 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 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 90B14, and nearby compatible options are linked above.