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Download - Catalogs, White Papers, eBooks, and Application Stories



Please fill in the information below and we will send you a free copy of any of our catalogs.

Please note:
Paperback versions of our catalogs are only distributed in the United States and Canada. Please use the .PDF catalog download sections located on each individual catalog page for regions where our catalogs do not ship. The catalog download sections are updated frequently and are the most current versions of our catalogs to date.


D820 Inch Catalog

D815 Metric Catalog available February 2020 Request Now!


Inch & Metric Mechanical Drive Components: Stock Drive Products/Sterling Instrument is proud to introduce its Inch & Metric Catalogs in downloadable sections, complete, easy-to-use resources that include new products, detailed indexes, and comprehensive technical data.

SDP/SI has revised and expanded on their existing product groups while introducing thousands of new drive components such as timing belts & pulleys, Fairloc® hubs, bearings, couplings and much more. Many of these new products are RoHS compliant and will provide customers a greater opportunity to build systems that can be shipped internationally without the hassle of maintenance or replacement issues.




A broad selection of eBooks, brochures, and downloads offered by SDP/SI.

Pocket Folder Inserts

Get to Know SDP/SI and the Other Designatronics Brands

We manufacture and supply precision gears, superior mechanical components and customized power transmission and motion control solutions to aerospace, medical, defense, and robotics industries. Explore the many products, engineering and manufacturing capabilities and services provided by SDP/SI, Quality Bearings & Components, and QTC Metric Gears here.

» Download Brochure


Aerospace and Defense Brochure

Aviation, Defense, & Space Industries

For more than 70 years, we’ve provided engineering development, key mechanical components and customized subassemblies to the aerospace, medical, defense, and robotics industries worldwide. Comprehensive engineering experience enables us to offer additional services such as design review and value engineering toward the goal of manufacturing efficiencies and optimal design.

» Download Brochure


Medical Brochure

Medical Brochure

We provide small mechanical components and customized assemblies to the medical device and healthcare industries worldwide.

» Download Brochure


Timing Belt Info Graphic Download

What's your timing belt knowledge?

Whether you're working with timing belts for the first time, or you're an old pro, this infographic is a helpful tool to refresh your knowledge of timing belts.

» Learn More


Gears vs. Belt Drive System Paper

Gears vs. Belt Drive System

A common question that arises when designing an application involving power transmission is, "how will this system transfer motion?"

Two of the most popular answers to this question are: a gear drive system or a belt drive system.

Here at SDP/SI our application engineers are asked “which is better?” And just as with everything else in engineering, it depends.


» Learn More


eCatalog E162 Shaftloc® Components Catalog

E162 Shaftloc®
Components eCatalog

A superior way to fasten rotating parts! Non marring to the shaft. Installs with standard tools and is reusable. Excelling because of its simplicity, it contains all structural features in only two parts.

» Download eCatalog


Fairloc White Paper

Fairloc® Hubs:
Selecting the Best Hub Fastener for a Power Transmission Application

Fairloc® is completely self-contained and the unique design allows the hub to fully and accurately support the component on the shaft reducing any motion and misalignment after clamping the hub.

» Download White Paper


Miniature Belt and Pulley Drive System Download

Steps to Designing a Miniature Belt and Pulley Drive System

Belt drives are particularly useful in applications where layout flexibility is important. They enable the designer to place components in more advantageous locations at larger distances without paying a price penalty.

» Learn More


How to Achieve Optimum Performance in a Miniature Gear Train Download

How to Achieve Optimum Performance in a Miniature Gear Train

Smooth, accurate gears and optimum performance is the goal of any new design. Achieving those goals in the early design stage not only meets performance requirements but makes your design cost-efficient.

» Learn More


Frameless Brushless Motors

Frameless Brushless DC Motors

Download our technical paper to learn more about our space-saving, cost-effective frameless brushless motors. Will they work in your application?. Download the technical paper and find out.

» Download Brochure


Integrated Motor Controllers Brochure

Integrated Motor Controllers Brochure

Our integrated motor controllers provide easier set-up, smaller and cleaner motion control solutions. By keeping the wiring from the motor to the driver short, integrated motor controllers are the perfect solution for reducing the communication time for the signals from the drivers to the motors.

» Download Brochure


60 mm - 142 mm DC Motor Brochure

60 mm - 142 mm
DC Motors Brochure

Designed for demanding applications the highly-efficient Brushless DC Motor, the AD / LD series delivers proven performance and reliability. They are ideal for precision applications such as an Automated Guided Vehicle (AGV), portable medical device, robot, industrial automation, laboratory, and agricultural equipment.

» Download Brochure


NEMA 23 DC Motor Brochure

NEMA 23
DC Motors Brochure

The NH1-DMA0 motor is a durable motor with a stainless steel shaft, long-life ball bearing system, UL Approved Class B insulation system, and ultra-smooth precision motion quality.

» Download Brochure


AGV Kits Brochure

AGV Kits
Brochure

The complete AGV system is ideal for a range of payloads from 500kg to 2000kg. Each solution includes 2-AGV motors with integrated gearboxes, AGV wheels, 1-dual channel drive with a drive control cable - everything you need to get started!

» Download Brochure


Train your brain

7 Criteria Manufacturing Partnership

Domestic manufacturing partnerships are a vital part of a complex supply chain. In this E-Book, we discuss seven vital criteria to help you evaluate and select your next manufacturing partner.

» Learn More


Train your brain

Leadership Fundamentals

Be inspired! There are nuggets of wisdom to extract from recent studies in leadership development, whether you're just starting out in your career or getting ready to hang up your hat.

» Learn More


Train your brain

Mindfulness & Meditation

In our latest ebook, Mindfulness for Engineers, we outline some of the proven benefits, and even walk you through the basics of mindful and active meditation practices.

» Learn More


Train your brain

Train Your Brain

Take control of that "monkey mind" by improving your memory, and you'll also gain stronger problem-solving skills and an increase in creativity thinking.

» Learn More


Improving Creativity eBook Download

Improving Creativity

Discover how to improve your creativity using these scientifically backed methods featured in our free eBook.

» Learn More


Improving Creativity eBook Download

Improving Productivity

Control your day with time management practices, and discover how to avoid burnout while making the most of your talents.

» Learn More



Case Study: Right Angle Planetary Gearhead

Right Angle Planetary Gearheads - Application Study

At SDP/SI, our application engineers frequently deal with customers whose requirements extend beyond our standard product offering. In these cases, they are able to work together to create unique solutions to any engineering problem.


» Learn More

Case Study: Customized Servo Gearmotor, Wheels, and Bracket Assembly Making a Package Handling Robot Mobile

Customized Servo Gearmotor, Wheels, and Bracket Assembly Making a Package Handling Robot Mobile - Application Study

Stock Drive Products/Sterling Instrument (SDP/SI) was chosen for the project based on its expertise in mo- tion solutions, its assortment of stock motors and mo- tion control products, the ability to customize, and its engineer-to-engineer support.


» Learn More

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