NORELEM FRANCE - Leader mondial des composants standard destinés à la construction et à l’ingénierie mécanique

The Hygienic DESIGN fastening system was specially developed for use in food processing facilities. Special attention was paid to the cleaning-optimised geometry and a surface finish of Ra ≤ 0.8 µm. The quick and easy installation due to a pre-installed sealing washer rounds off the overall package.

Steel, bright. Stainless steel A2, bright. Stainless steel A4, bright.

R-clips are used for securing bolts and axles. They are easy to install and can be reused. The ends have no sharp edges. Double coil R-clips have a flatter spring characteristics and are easier to install. The double coil allows a tether cable to be attached to prevent loss. Drawing reference: Form E: with single coil. Form D: with double coil (coil direction can differ from the drawing).

The floating joint unit is a bolt for connecting two components, that permits a desired movement of those components in relation to each other. The floating joint unit is mainly used when: a temperature change alters the dimensions of a component assembly inaccuracies occur manufacturing tolerances must be compensated for the position of the components varies due to dynamic loads

Tempered, black oxidised. Precision diameters ground.

Two-piece shaft collars surround the shaft with a uniformly distributed clamping force. This leads to a dimensionally precise fit and very high retaining forces without damaging the shaft. The shaft tolerance should lie within h11. Two-piece shaft collars can be quickly and easily mounted or removed without dismantling other components.

Ratchet elements are used to connect two components together in any angular position with a positive fit. The ratchet elements with internal toothing (Forms A–D) can be combined with the ratchet elements with external toothing (Forms E–H) in any way depending on the application and installation possibilities. The springs mean that a new angular position can be quickly implemented.

Form A with full ball is used when a clean, polished contact surface is required. Surfaces which are not flat and parallel can be firmly clamped or supported with Form B with flattened ball, the movable ball can adapt itself up to 9°. Drawing reference: Form A: full ball Form B: flattened ball Form BV: flattened ball, rotation lock Form F: serrated flattened ball Form FV: serrated flattened ball, rotation lock

Ball-end thrust screws with full ball are used when a clean, polished contact surface is required.

Surfaces which are not flat and parallel can be firmly clamped or supported with with a flattened ball, the movable ball can adapt itself up to 9°. Longer versions have been designed especially to be glued in. This allows mechanical connecting elements with external thread to be made cost-effectively for small and medium-sized series. The ball has a rotation lock.