Nord Gearbox SK1SI40-12.5-L-56
$499.01
Nord Gearbox SK1SI40-12.5-L-56 — FLEXBLOC worm gearbox with 1.57″ center distance, 12.5:1 ratio, NEMA 56C motor input, and 0.75″ left-hand shaft. Produces 140 RPM and 363 lb-in torque.
Description
Nord Gearbox SK1SI40-12.5-L-56 Overview
The Nord Gearbox SK1SI40-12.5-L-56 is a rugged right-angle worm reducer from the NORD FLEXBLOC series. Built with precision engineering, it combines compact design, reliable torque transfer, and durable performance for industrial applications requiring left-hand shaft orientation.
Key Features & Specifications
✔ Center Distance: 1.57″
✔ Gear Ratio: 12.5:1
✔ Input: NEMA 56C Motor Adapter
✔ Output Shaft: 0.75″ Left-Hand Extended Shaft
✔ Output Speed (RPM): 140 (with 1750 RPM motor)
✔ Maximum Input Horsepower: 1 HP
✔ Maximum Output Torque: 363 lb-in
Applications
This gearbox is designed for:
-
Conveyor drives where left-hand mounting improves installation flexibility
-
Material handling equipment requiring efficient power transmission
-
OEM machinery with compact design needs
-
Automation systems benefiting from robust torque delivery and precise speed reduction
Order the Nord Gearbox SK1SI40-12.5-L-56
At Industrial Gearbox Solutions, we stock genuine Nord FLEXBLOC worm gearboxes for fast delivery and technical support. The SK1SI40-12.5-L-56 is an ideal choice for OEMs, maintenance teams, and operators needing long-lasting reliability.
🔗 Shop Nord Gearboxes
🔗 Browse All Gearboxes
🔗 Contact Our Experts
FAQs
What is the gear ratio of the SK1SI40-12.5-L-56?
It has a 12.5:1 ratio, providing 140 RPM from a 1750 RPM motor.
What type of output shaft does this gearbox have?
It uses a 0.75″ left-hand extended output shaft.
How much torque does this gearbox deliver?
The gearbox delivers up to 363 lb-in of torque.
Which motors are compatible with this gearbox?
It is designed for NEMA 56C frame motors.
When would a left-hand shaft be useful?
A left-hand shaft orientation simplifies installation in conveyor systems and machinery with space constraints or specific directional layouts.



