• Collage_Schwenklager_Slider

Swivel bearing / steering knuckle

Hub carriers on the rear axle and swivel bearing on the front axle are responsible for carrying the wheels and crucial to driving comfort and safety. They act as mounting points for the wheel hub, brake disc, brake caliper and suspension arm. Their design differs depending on the axle concept so as to meet specific vehicle requirements. The components must be capable of bearing high wheel loads and are therefore made from strong, corrosion resistant materials such as forged aluminium or spheroidal cast iron. Their robust design ensures the vehicle’s effectiveness and safety.

Swivel bearing brake housing with labeling

Key Features Aluminium

  1. Thrust strut, camber strut and tension strut
  2. Main bearing bore
  3. Pre-machining of main bearing bores

Caractéristiques et exigences d’usinage

L'aluminium, qui combine une résistance maximale et une très grande ductilité, est le matériau idéal pour les composants critiques en matière de sécurité qui doivent également être très légers. Ces propriétés en font le choix parfait pour les masses non suspendues.

  • Aluminium forgé ou fonte à graphite sphéroïdal
  • Exigence de qualité élevée, car il s'agit d'un élément important pour la sécurité
  • Grand nombre de pièces
  • Tolérances de position étroites
  • Grande fiabilité des processus et respect des dimensions

  • Copeaux longs grâce à l'alliage corroyé et forgé/ traité thermiquement
  • Selon le dispositif de serrage et le nombre d'étapes du processus, accès difficile aux outils
  • Enlèvement de copeaux en une seule fixation d'outils
  • Usinage multibroche ou machines spéciales

1. Barre de torsion, jambe de force et tirant

Kombinationswerkzeug_Schwenklager

Outil d'alésage pcd:

  • Usinage final de tolérances de diamètre étroites avec un long porte-à-faux

  • Grande précision de forme grâce à des arêtes de coupe affûtées avec précision

1. Perçage en pleine matière

  • Perçage en pleine matière économique avec plaquette de coupe QTD

2. Alésage de précision + usinage des supports de palier

  • Usinage final du perçage au moyen d'une lame d'alésage fin guidée, pour des contraintes de tolérance étroites

3. Usinage en tirant

  • Fraisage circulaire en tirant du chanfrein avec lames tangentielles interchangeables

2. Main bearing bore

Hauptlagerbohrung

PCD Miling Tool

  • Short cycle times due to finish milling of all diameters and contours with one tool
  • Reliable machining with short chips

3. Pre-machining of main bearing bores

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3. OPTIMILL-DIAMOND-SPM

  • Ideal for making openings or pockets
  • Solid carbide design or with brazed PCD blades

Swivel bearing made of cast iron with labeling

Key Features Cast Iron

  1. Connection steering arm
  2. Milling machining
  3. Connection swing arm/suspension arm
  4. Main bearing bore

Features and Machining Requirements

In comparison to aluminium, these materials are more
cost-effective but have a higher specific weight. Cast iron
is resistant to wear and tear and can withstand high loads.

  • Forged aluminium or spheroidal cast iron
  • High demand on quality as component is safety-relevant
  • High quantities
  • Close position tolerances
  • High process reliability and dimensional accuracy
  • High abrasiveness
  • More difficult tool accessibility depending on clamping fixture and number of process steps
  • Reduction of cutting forces due to positive cutting edge geometry
  • Adapted cutting data
  • Controlled chip breaking

1. Connection steering arm

Anbindung_Spurlenker

Disc Milling Cutter

  • Reliable milling due to tangential technology
  • Eight cutting edges per indexable insert for cost-effective machining
  • Vibration damper to reduce vibration

2. Milling machining

Fräsbearbeitungen

NeoMill-8-Corner

  • Maximum economic efficiency for corner milling
  • Eight cutting edges per indexable insert for cost-effective machining
  • Large cutting depths up to 8 mm

3. Connection swing arm/suspension arm

Anbindung Schwinge

Taper Reamer

  • Maximum accuracy thanks to guide pads and μ-precise adjustment of indexable inserts
  • Insert technology for maximum flexibility in the choice of cutting material for optimisation of tool life and surface quality

4. Main bearing bore

Hauptlagerbohrung_Gusseisen.jpg

1. Pre-machining

Boring Tool With Indexable Inserts

  • Precision boring tool with cartridges
  • High flexibility due to quick, straightforward interchangeability
  • Adjusting feature for long adjustment range

2. Semi-finish machining

Bore Milling Combination With Indexable Inserts

  • High effectiveness due to the usage of tangential technology
  • Cartridge for high flexibility due to quick, straightforward interchangeability

3. Fine machining

High-Performance Reamer HPR400

  • Reliable machining of the large diameter
  • Easy to handle without setting effort
  • High accuracy: Precision of a brazed reamer