Machinedesign 5890 Hoop Rings Scanning Closeup 0
Machinedesign 5890 Hoop Rings Scanning Closeup 0
Machinedesign 5890 Hoop Rings Scanning Closeup 0
Machinedesign 5890 Hoop Rings Scanning Closeup 0
Machinedesign 5890 Hoop Rings Scanning Closeup 0

Hoop rings hold components tight

March 20, 2013
Hoop rings hold components tight.

Hoopster retaining rings from Smalley Steel Ring Co., Lake Zurich, Ill., will stop components from sliding on shafts or keep them from sliding out of tubes. On shafts, a ring is expanded then allowed to snap into a machined groove. The ring protrudes from the shaft, providing a barrier so that properly sized toroidal components slipped onto the shaft cannot get past. The components need not have a sharp corner. Chamfered and radiused components also can’t get past the ring.

A Hoopster ring can also be installed inside tubes. A technician first compresses the ring, then positions it in a groove machined on the tube’s inside diameter, then lets the ring expand into that groove.

The rings are made of carbon steel (rated to 250°F) and 302 stainless steel (rated to 400°F), and come in standard sizes from 0.375 to 3.0 in. (10 to 76†mm). The reusable rings can be installed and removed without the need for special tools.

Larger rings withstand substantial thrust loads. So the 0.375-in. ring withstands up to 1,052 N and the largest at 3.0†in., can handle up to 21,168†N. If the retained component exerts a force greater than the thrust rating, the groove can deform, letting the ring pop out of the groove.

© 2013 Penton Media, Inc.

Sponsored Recommendations

NEW Low Profile, Ultra Compact Power Supplies

March 13, 2024
Learn more HERE about Altech's Power supplies!

Altech's Liquid Tight Strain Relifs Catalog

March 13, 2024
With experienced Product Engineers and Customer Service personnel, Altech provides solutions to your most pressing application challenges. All with one thought in mind - to ensure...

Industrial Straight-Through Cable Gland

March 13, 2024
Learn more about Altech's cable glands and all they have to offer for your needs!

All-In-One DC-UPS Power Solutions

March 13, 2024
Introducing the All-In-One DC-UPS, a versatile solution combining multiple functionalities in a single device. Serving as a power supply, battery charger, battery care module,...

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!