Borrelly 360 Spiral Retaining Rings
Borrelly 360 multi-turn internal and external spiral retaining rings are made by coiling the ring from laminated flat wire with round edges.
Borrelly Spring Washers makes spiral retaining rings from 5 mm to 1000 mm diameter; 1 turn to 7 turns; Austenitic (AISI 301 – AISI 302 – AISI 316), Semi-austenitic (17-7 PH), Inconel, Hastelloy, CuBe2, Duplex, Super Duplex.
BORRELLY 360 Retaining Rings
Available as standard: 2 ranges 360 retaining rings for bores or shafts in stainless steel, meeting the MA4016 and MA4017 standards of the aeronautics industries.
Precision ranges are manufactured under our EN 9100 quality management system. Our products are available one week after receipt of your order.
Application sectors
- Defense
- Nuclear
- Aeronautics
- Aerospace
- Automotive
Thanks to our experience and know-how, our in-house design office can solve the most demanding problems in high-tech sectors, from prototype to mass production.
Application sectors
- Defense
- Motor Sports
- Nuclear
- Mechanical industry
- Oil and Gas
- Consumer goods
- Aeronautics
- Aerospace
- Automotive
Technical description
Borrelly 360° spiral retaining rings are a type of retaining rings coiled from flat wire.
Our multi-turn internal and external spiral retaining rings are meant to be axially installed onto a shaft or within a housing where they will act as an artificial shoulder. Designed to withstand medium to heavy loads, they are perfectly suited for any application where a 360° contact with a groove and shoulder of the assembling part is required. There are commonly used to secure components in place and support high pressures and rotational speeds.
Our spiral retaining rings for bores and shafts are available in variety of materials and finishes to meet any application requirements.
They are manufactured with a notch; this make is extremely easy to remove from a groove.
Compared to stamped retaining rings (circlips), the benefits of the Borrelly 360 ring are:
- No tooling costs
- No assembly lugs
- A 360° retaining surface in multi-turn configurations
- Easy to install and remove
- Standard and custom design options
Borrelly 360° spiral retaining rings were designed to provide easy installation and removal.
Manual, semi-automated or automated installation of a Borrelly 360 retaining ring can be carried out using a simple assembly cone.
A standard screwdriver can be used to remove a Borrelly 360 retaining ring from its groove (whereas a special pliers is needed to remove a stamped circlip from a groove.
Spiral retaining rings are commonly used across various industries, including in the automotive, aerospace, off-shore, medical and household appliances sectors to name a few. They can be found in many cases of applications, such as in bearing preloads, gear and pneumatic assemblies, slip and pneumatic clutches, axial piston pumps…
Borrelly 360 2-turn external retaining ring for shaft
Borrelly 360 4-turn internal retaining ring for bore
Thanks to its extensive experience and technical expertise, our Engineering & Design Department can help you in the design, engineering, and manufacturing of custom spiral retaining rings meeting your technical requirements, whether they are for prototypes, limited series or large runs. Your own custom retaining rings can be made in a wide range of special alloys and finishes, including Inconel, Beryllium Copper and more.
We study your needs to design your custom spring washers.
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