Product Details Supplier Info More products

TFC Europe has added the Hoopster to its Smalley Retaining Ring range.

The Hoopster is suitable for applications where the depth of the groove is critical, for example thin-wall cylinders, since it only requires a shallow groove depth in order to successfully perform.

Instead of edge-coiling the material, it is coiled on the flat to produce a ring with an extremely low profile.

Unlike a conventional Retaining Ring or Circlip, the retained component in a Hoopster Retaining Ring assembly may have a corner break.

Thrust load is not sacrificed when the retained component has a broken corner because the moment arm is negligible.

The shallow groove associated with the Hoopster and the groove material are the controlling factors in determining thrust capacity.

The Hoopster does not twist when loaded, so pure thrust load based on shear strength of the material maximises the Hoopster’s load-carrying capacity.

Groove deformation is the most common design limitation of most retaining rings.

Unlike a conventional retaining ring or snap ring that fails by deforming or twisting, the Hoopster Retaining Ring demonstrates superior strength from its low profile and mechanical advantage over traditional retaining rings under load.

With a Hoopster there is no moment arm that twists the ring, causing premature failure as with a conventional retaining ring.

The shallow groove specification of a Hoopster makes the groove wall a critical specification, to ensure the function of the ring.

To obtain maximum load capacity from a Hoopster Retaining Ring it is essential to have sharp corners on the groove.

The maximum radius on the groove bottom should be no greater than 10 per cent of the ring’s radius wall.

Maintaining a sharp corner on the top of the groove is just as critical.

The Hoopster is suitable for medium or light loads and available as standard in carbon and 302 stainless steel in a variety of sizes.

It can be offered in bespoke sizes with no extra tooling charges.

TFC Europe Ltd is one of the leading suppliers of technical fastener components to industry, with an unrivalled reputation for delivering innovative products, supply solutions, and exemplary service, to help our customers achieve breakthroughs in product development and productivity.

From the very beginning TFC’s founders in Heathfield, UK were determined to help equipment designers by supplying technical fasteners enabling them to design a better product and to generate more profits for their companies. Half a century later this same approach means that TFC helps not only the designer but also the buyer, and the operations teams by providing a wide variety of fastener and related components via automated and sophisticated supply systems that enable lean manufacturing goals to be met and our customers to improve their profits.

In so doing TFC has become one of the leading fastener distribution businesses in Europe supplying over 3,000 customers, employing over 100 people, working out of a national and European network of logistic service centres as well as being able to support global customers in their manufacturing plants anywhere in the world.

Whether it is a simple threaded bolt or a complex bespoke product made to customer drawing speci¬ cations, our quality assured fasteners are guaranteed to provide the perfect solution to your fastening needs.

– Bolts & Socket Screws in various grades
– Smalley Wave Springs and Spirolox Retaining Rings
– Nuts, Washers, Rivets & Screws of all types
– Sheet Metal Fasteners – self-clinch & rivet bushes
– Circlips, Springs, Keys and Seals
– Threaded Inserts – for plastics, timber & metal
– Electronic Hardware – standoffs, handles, ferrules
– Construction Fixings – anchors, through bolts, resin
– Panel, Wire & Pipe Fasteners
– Machined and turned parts to specification

Supply Chain Services – Our supply chain expertise provides significant benefits to customers by reducing costs associated with the purchase, stockholding and handling of a wide range of low-cost fastening and ancillary items. With a flexible inventory managed system; DLF, Kanban or VMI to reduce the supplier base, minimise inventory, direct to the line quality approved products immediately at hand, customers are able to remove a whole variety of hidden administration and transaction costs.

View full profile