How Precision Shoulder Screws are Used in Robotics and Automation

Precision shoulder screws have become an indispensable component in the realm of robotics and automation. Their unique design, combining the functionality of a fastener and a shaft, empowers engineers to achieve precise positioning, smooth motion, modularity, and stability within robotic systems. By incorporating shoulder screws, designers can elevate the performance of robots, making them more reliable, accurate, and adaptable to meet the growing demands of various industries. In this blog, we will explore how precision shoulder screws are used in robotics and automation, and what factors to consider when purchasing them for industrial applications.

What are Precision Shoulder Screws?

Precision shoulder screws are a type of fastener designed with a cylindrical shoulder that provides precise alignment and support, making them ideal for use in applications that require accurate positioning and secure attachment.

When selecting these screws for industrial applications, it is important to consider factors such as material, size and thread type, head type, and application requirements to ensure that the screws provide the necessary strength and support, and can withstand the forces and stresses involved in the application. With the right precision shoulder screws, robotics and automation applications can operate with precision, accuracy, and reliability. Our handy Buyer’s Guide (link to guide)can direct you to the most common off the shelf available options.

Precise Positioning & Alignment

One of the primary benefits of precision shoulder screws is their ability to provide precise alignment in robotic and automation applications. The shoulder of the screw acts as a guide for the mating component, ensuring that it is aligned precisely and securely. By using shoulder screws, engineers can achieve tight tolerances, eliminating any unwanted play or misalignment that could compromise the robot’s performance.

Secure Attachment

Another key benefit of precision shoulder screws is their ability to provide secure attachment. The shoulder of the screw creates a stop against the mating component, preventing it from moving or rotating. This is important in applications that involve high levels of vibration or stress, as it ensures that the components remain securely attached and in place.

Smooth and Reliable Motion

In robotics, smooth and reliable motion is essential for efficient and accurate operations. Precision shoulder screws facilitate this by reducing friction and ensuring smooth movement between connected parts. The shoulder section acts as a bearing surface, minimizing wear and tear while allowing the robot to perform intricate tasks with minimal resistance. This enhanced motion control enables robots to execute precise actions, such as pick-and-place operations, assembly tasks, or complex maneuvers, with exceptional accuracy.

Modularity and Flexibility

Robotic systems often require modular designs, allowing for easy maintenance, upgrades, or customization. Precision shoulder screws excel in such scenarios due to their modular nature. By utilizing shoulder screws, different components can be connected and disconnected swiftly and securely. The screws enable the easy removal and replacement of specific parts or modules, providing a flexible platform for reconfiguration or adaptation to changing operational requirements.

Vibration Damping and Stability

In many robotic applications, vibrations can adversely affect performance and accuracy. Precision shoulder screws play a vital role in dampening these vibrations and maintaining stability. The shoulder section acts as a barrier, absorbing and dissipating vibrational energy, thus reducing the impact on the overall system. This feature is particularly crucial in high-speed or precision-focused robots where even slight disturbances can lead to errors or malfunctions.

Conclusion: Precision shoulder screws have become an indispensable component in the realm of robotics and automation. Their unique design, combining the functionality of a fastener and a shaft, empowers engineers to achieve precise positioning, smooth motion, modularity, and stability within robotic systems. By incorporating shoulder screws, designers can elevate the performance of robots, making them more reliable, accurate, and adaptable to meet the growing demands of various industries.

How to order

Precision Shoulder Bolts often show up under their OEM brand name.  Some of the most popular brands include: BERG, Concord, Globe, PIC, Lyn-tron and RAF. A comprehensive selection of Shoulder Screws is also offered by McMaster-Carr (tight tolerance series), MSC and Grainger. Finally, Precision Shoulder Screws can also show up under their Mil-spec numbers, which include MS51575 & MS51576 and are DFARS compliant with full paperwork.

Check out our Buyer’s guide for more info.

For more detailed information on Precision Shoulder Screws, visit us at our website or Request a Quote today, and our MF Supply team of sourcing experts can help you find what you need. “Finding the right screw for you” is our tag line after all!

Book a one-on-one consultation with our President, Robin, to discuss how MF Supply can help you solve your Industrial Sourcing, Fastener, and Safety concerns.

• Full eCommerce Enabled Website With Technical Manual Available 24/7 – Visit our website and Create a New Account, track online orders, browse our product catalog, check technical specs, subscribe to our blog, or buy online.  We are adding items and improving functionality daily!
• Same Day Shipping From The USA – Our hardware products are in stock and ship to you directly from our USA based distribution centers. 
• Functional Equivalents To Expensive Brand Names- We stock and source alternatives to brand name fasteners, reducing long lead times and saving you money.
• Creatively Solve Problems – We are sourcing experts, offer competitive pricing and specialize in finding hard to find parts and reducing long deliveries.
• One-Stop Shopping On Certified Hardware – We stock and source a full line of fasteners including Mil-Spec, DFARS compliant and other industrial products.
• WBE/WOSB Woman Owned Certified Small Business – To meet your diversity & set-aside needs.