Borrelly 360 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 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 rings for shaft or bore, meeting the MA4016 and MA4017 standards of the aeronautics industries.

Custom design request

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

Bore range following ma4017

Retaining Ring range of internal retaining ring according to MA 4016 specification for aerospace application.

Shaft range following ma4016

Retaining Ring range of internal retaining ring according to MA 4016 specification for aerospace application.

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

Custom design

Technical description

Borrelly 360 retaining rings for multi-turn bores and shafts are made by coiling a ring from laminated flat wire with round edges.
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
Easy to install and remove

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.

Borrelly 360 2-turn external retaining ring for shaft

Borrelly 360 4-turn internal retaining ring for bore

We study your needs to design your custom spring washers.

Custom design request

Borrelly 360 Retaining Rings