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Machining wheel suspension

1. Wheel bearing housing

Connecting element of the vehicle steering and vehicle bearing

2. Roller bearing

Absorbs the axial and radial forces of the vehicle motion

3. Wheel hub

Receives and transmits the kinetic energy of the wheel

1. Milling and drilling bearing housing

The complex geometries of a wheel bearing housing made of aluminium alloys often pose a challenge for many machine operators. For example, the milling and drilling operations in the bearing seat have to be increasingly process-secure, accurate and efficient, as they account for a significant proportion of the production time. The sheer variety of cylindrical, conical or spherical holes call for state-of-the-art machining centres and precision drills to ensure optimum machining – the latter of which we can provide.

1. Pre-machining the wheel bearing bore

Roughing boring bar

  • Indexable inserts with TiB² coating for high cutting speeds and feeds
  • Diameter can be adjusted via short clamping holder for a consistent pre-machining dimension on the wheel bearing bore and therefore excellent process stability during finish machining
  • Quiet running during machining despite long overhang length, thanks to high balance quality

2. Finish machining the mounting surfaces and wheel bearing bore

PCD multi-purpose reamer

  • Multi-stage special-purpose tool with brazed PCD blanks
  • A single tool for milling over several surfaces and counterboring/intermediate machining
  • Excellent cycle time savings thanks to several tools combined in one
  • Quiet running during machining despite long overhang, thanks to high balance quality

3. Semi-machining of the wheel bearing bore including flat surface

PCD multi-purpose tool

  • Brazed and lasered PCD cutting edges guarantee micrometre-precise results
  • The combination of several diameters and contours in a single tool leads to excellent cycle time savings
  • High balance quality ensures quiet running during machining despite long overhang lengths

2. Grooving, turning and drilling bearings

Roller bearings are used wherever components rotate at high speed or heavy loads need to be set in rotational motion. Their simple design – inner ring, outer ring and rolling element – belies the sophisticated functions and high quality standards of these components. And the tool systems used must be up to the job, so that stringent requirements relating to service life and precision are met during the machining of these complex parts. Be it grooving, turning, drilling or all these things with a single tool, we support you in optimising your processes with multi-talented tools.

1. Multi-function tool - ProfileMaster

Drilling into solid, external turning, face turning and internal turning of the roller bearing contour

  • Race turning without steps with a single tool
  • Turning internal contours
  • Turning grooves and undercuts
  • Turning external profiles
  • Range: Ø 10–32 mm | Lengths 1.5xD, 2.25xD

2. Multi-function tool – EcoCut

Drilling into solid, external turning, face turning and internal turning of the roller bearing contour

  • One tool for several machining operations
  • Fewer tool stations occupied
  • Fewer tool changes
  • Reduced machining time
  • Range: Ø 8–32 mm | Lengths 1.5xD, 2.25xD, 3xD

3. Machining wheel hub

It is often assumed that a wheel hub is an easy-to-produce turned part. However, producing these components from tempered steel as efficiently and precisely as possible requires long tool life. If wheel hubs made of case hardened material are specified, then in-depth expertise and intensive development work are needed to create the tool's cutting edge, in order to ensure continued precision and a long service life.

1. WTX - UNI solid carbide drill

Drilling the wheel screw connections

  • High feeds and cutting speeds can be achieved thanks to wear-resistant substrate and the latest PVD coating technology
  • One of its key features is the special post-treatment of the cutting edges
  • Drill into all materials up to 1,200 N/mm²
  • Ø 3 – 25 mm
  • Lengths: 3xD, 5xD, 8xD
  • Available with/without through coolant

2. UNI type machine taps

Tapping the wheel screw connections

  • Powder metallurgy HSS with TiN coating
  • Reliable universal tool for the majority of materials in ISO categories P, M, K, N
  • For threads ≤ 3xD
  • Version available for various thread types

3. Turning

Finish machining the wheel hub external profile

  • Clear, consistent range and easy selection of indexable inserts
  • High cutting speed and longer service life increases productivity
  • Universal application with high reliability and outstanding performance
  • For maximum process security and reduction of the scrap rate
    Greater stability in the tool holder increases process security even in difficult machining situations
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