Shaft Collar FAQs

At Stafford Manufacturing Corp., we offer an extensive product catalog of clamp-type shaft collars, rigid shaft couplings, and specialty mechanical parts applicable to a wide range of consumer and industrial MRO and OEM applications. For shaft collars specifically, our product line includes round, threaded, hex, and square bore shaft collars in standard and metric sizes.

On this frequently asked questions page, you’ll find quick answers to common queries about Stafford Manufacturing and how to locate additional shaft collar information on our company website.


How Do I Find a Distributor in My Area?

To find a distributor near you, visit our Distributor Locator page and enter your zip code, city and state, or country. You can then filter to search by distance or the nearest five or ten distributors.


How Do I Find a Rep for My Area?

Our Sales Rep Locator allows you to find Stafford sales representatives near you. The page offers locations and contact information for our sales rep offices across the United States.


How Do I Reach Customer Service?

Our live customer service representatives are standing by to assist you during standard business hours. You can reach us directly by calling or faxing any of the following numbers:


  • 978-657-8000 (Phone)
  • 800-695-5551 (Toll-Free Phone)
  • 978-657-4731 (Fax)
  • 800-649-5101 (Toll-Free Fax)


What Are the Customer Service Hours?

Our customer service team is available Monday through Thursday from 8:30 AM to 5:00 PM EST, and Friday from 8:30 AM to 4:00 PM EST.


Where Can I Find a Cross-Reference to the Part Number I Have?

To find a cross-reference for a part number, you can use the Advanced Search on our Cross-Reference web page. Please note that the parts listed in the cross-reference guide may not be an exact match for your part number, so it’s important to verify the critical dimensions and other characteristics of the substitute part before using it in your application.


Where Can I Find a Chart for Torsional Holding Power (Torque Rating)?

Torque rating is the amount of torsional load that a properly installed coupling needs for slippage to occur. Our Torsional Holding Power chart lists torque ratings in inch and metric sizes so that you can easily find the rating you need for various steel couplings without keyways.


Where Do I Find Information on Axial Holding Power?

Axial holding power is the amount of axial load needed to trigger collar slippage. Our Axial Holding Power page includes two charts, one in inches and another in metric, to determine the holding power for steel clamp-type collars.


Where Do I Find Information on the Weldability of Parts?

Several factors impact the weldability of a material or product, including the likelihood that a material will crack or tear and the skill of the welder. Learn more about important welding considerations by visiting our Weldability page.


Where Do I Find Tolerance Information?

Stafford Manufacturing machines shaft collars with a focus on precision accuracy and tight tolerances to offer superior consistency in a product’s function and fit. You can find details about our tolerance capabilities on our Fits and Tolerances page.


Where Do I Find CAD Drawings of Stafford Parts?

Through our CAD Drawings page, access our extensive offerings for 3D, 2D, and sales drawings. Visit the web page, search by the Stafford part number, and select the drawings you need for download in the format you prefer or for direct insertion into your design program.


Where Can I Download Stafford’s ISO Certification and Certificates of Compliance?

At Stafford Manufacturing, we are committed to maintaining the highest standards of quality and safety in all of our products and operations. Our ISO 9001:2015 certificate and compliance documentation for Prop 65, REACH, and RoHS are available for download on our Certifications, Registrations & Compliance page.


Still Have Questions? Contact the Experts at Stafford

We hope that you’ve found the information you were looking for. However, if you still have questions or would like additional information, call our team or contact us today. You can also request a quote for our products to get started on your project.