What Is a NEMA 180TC Motor? Specifications, Uses, and Buying Guide
While there’s no such thing as a "NEMA 180TC motor" model, NEMA 180TC refers to a standardized motor frame size defined by the National Electrical Manufacturers Association (NEMA). Many motors from top brands are built to this 180TC specification, making them compatible with a wide range of industrial gearboxes and equipment.
Discover more about our NEMA 180TC Motor models.
In this guide, we’ll break down what a NEMA 180TC motor is, where it’s used, and how to select the right one for your gearbox or application.
What Is a NEMA 180TC Motor?
The NEMA 180TC motor refers to a motor built to NEMA (National Electrical Manufacturers Association) specifications, specifically the 180TC frame size.
Key features include:
180 Frame Size: Indicates motor dimensions and shaft height (4.5 inches centerline height)
TC Flange Mounting: A standard C-face flange used to mount directly to gear reducers
Shaft Size: 1-1/8" diameter shaft (common spec)
Horsepower Range: Typically 1.5 to 5 HP
RPM: Often used with 1750 RPM motors
These motors are C-face with foot mount, making them ideal for flange-mounted gearboxes, like right angle or inline reducers.
NEMA 180TC Motor Dimensions
Here are the typical specs for a standard 180TC frame:
| Feature | Specification |
|---|---|
| Model | SK1SI75-10-H-180-31 |
| Center Distance | 2.95" |
| Gear Ratio | 10:1 |
| Motor Input | NEMA 180TC Motor Adapter |
| Output Shaft | 1.9375" Hollow Bore |
| Output Speed (RPM) | 175 |
| Max Input Horsepower | 6.2 HP |
| Max Output Torque | 2009 lb-in |
📏 Note: Always confirm exact dimensions with the motor spec sheet before ordering for compatibility.
Applications for NEMA 180TC Motors
This frame size is widely used in:
Gear reducers (right angle, inline, worm gear)
Conveyor systems
Packaging equipment
Fans and blowers
Pumps and mixers
Material handling machinery
Because of its flange design and shaft size, the 180TC is often paired with worm gearboxes like the NORD SK1SI75-10-H-180-31 or other reducers using standard motor adapters.
Choosing the Right 180TC Motor
When selecting a 180TC motor, consider:
Horsepower & Voltage: Match your application’s torque and power needs
RPM: Usually 1750 for gearbox compatibility
Mounting Type: Foot-mounted, C-face, or both
Enclosure: TEFC (Totally Enclosed Fan Cooled) or ODP (Open Drip Proof)
Phase & Voltage: 3-phase 230/460V is standard for industrial use
Shaft Compatibility: Ensure match with gearbox input
If you’re replacing a worn-out unit, check the nameplate carefully or contact us with your part number.
Need a Gearbox for Your 180TC Motor?
We stock a wide selection of gear reducers compatible with NEMA 180TC motors, including:
Right Angle Worm Gearboxes
Inline Helical Gearboxes
Custom Motor Adapter Assemblies
🔧 Need help finding a match? Call us at 1-877-465-9108 and we’ll walk you through it.
Shop NEMA 180TC-Compatible Products
Looking for gearboxes with a NEMA 180TC input flange? Browse our collection:
👉 View All 180TC-Compatible Gearboxes
Conclusion
The NEMA 180TC motor is a dependable workhorse in industrial applications. Its standard mounting dimensions and widespread availability make it a go-to choice for anyone integrating with gear reducers. Whether you're retrofitting a system or building new equipment, choosing the right motor and gearbox pairing is essential.
If you have questions or need support, the team at Industrial Gearbox Supply is here to help.