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		> spring rings Spring rings are waved spring strips, mounted between a bearing and its housing and used to control the clearance between the two. > find out more				> spring blades If space is available for a contact surface, but not for height, spring blades can provide an elastic solution for rectangular, trapezoidal, and even oval shapes. > find out more
		> special springs Special springs are elastic parts with specific shapes. They are used to obtain forces, retain mechanical parts and compensate for play with an extensive range of dimensions. > find out more				> Flat washers The wide range of cutting tools used by Borrelly are also suitable for manufacturing flat washers in very short lead times for small or medium-sized production runs. > find out more
		> diaphragm spring washers Diaphragm spring washers are a special type of Belleville washer > find out more				> retaining rings Known as retaining rings, circlips, or even spring rings, these mechanical assembly components are generally fitted in grooves on cylindrical shafts or in bores. > find out more

> SPRING RINGS

> Principle of spring rings

Spring rings are waved spring strips, mounted between a bearing and its housing and used to control the clearance between the two.
The spring ring is pre-stressed on fitting, meaning that the bearing can only move radially if the pre-stress force is exceeded.
We can manufacture spring rings from steel, stainless steel, Cube 2, Inconel, etc. with short lead times and no tooling expenses.

spring rings, spring washer

> SPECIAL SPRINGS

Special springs are elastic parts with specific shapes. They are used to obtain forces, retain mechanical parts and compensate for play with an extensive range of dimensions.
The examples below are not restrictive. Send us a description of your needs, with a diagram,
requirement specifications or a prototype, and we will quickly inform you of the possible solutions we can offer.

> DIAPHRAGM SPRING WASHERS

> General

Diaphragm spring washers are a special type of Belleville washer.

> Elasticity curves

The elasticity curves are much the same as for Belleville washers, but with a much higher deflection.

> Advantages

• Wide range of possible elasticity curves
• High force values
• Can perform the function of a multiple-turn spring, with an elasticity curve perfectly suited to the problem at hand.

> Centring and stacking

In principle diaphragm spring washers are not stacked; indeed, one of their primary purposes is to avoid stacking.

> Applications

Boiler safety valve

diaphragm spring washers, steel washers

spring rings, wave washer

> SPRING BLADES

> General

If space is available for a contact surface, but not for height, spring blades can provide an elastic solution for rectangular, trapezoidal, and even oval shapes.
These blades store energy and restitute it in a very low volume. We are specialised in designing and manufacturing spring blades in exotic materials such as Cube 2, Inconel and the like.

> FLAT WASHERS

> General

Thickness 0.01 to 3 mm

The wide range of cutting tools used by Borrelly are also suitable for manufacturing flat washers in very short lead times for small or medium-sized production runs.
We regularly manufacture thin shim washers, with thicknesses from 0.01 mm to 3 mm, in a variety of materials such as work-hardened soft steel, tempered steels, stainless steels or other more exotic materials.

> RETAINING RINGS

> General

Known as retaining rings, circlips, or even spring rings, these mechanical assembly components are generally fitted in grooves on cylindrical shafts or in bores.

They are used for axial retaining, clearance take-up to reduce mechanical noise, and other similar functions.

We are specialised in designing and manufacturing highly specialised retaining rings, in small and medium-sized production runs, from materials such as austenitic stainless steels, Inconel, Cube 2, and more.