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

Thrust strut, camber strut and tension strut
Main bearing bore
Pre-machining of main bearing bores

Merkmale und Zerspanungsanforderungen

Aluminium, with its combination of high strength and very high flexibility, is the ideal workpiece material for safety-critical components that also need to be lightweight. These properties make it the perfect choice for unsprung masses.

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

Long chipping due to wrought alloy and forged/ heat treated
More difficult tool accessibility depending on clamping fixture and number of process steps
Machining in a clamping system
Multi-spindle machining or custom machines

1. Thrust strut, camber strut and tension strut

1. Combination Tool

Fine machining of close diameter tolerances with long projection length
High shape accuracy due to precisely ground blades

1. Drilling from solid

Cost-effective drilling from solid using QTD indexable cutting edge

2. Fine boring + bearing seat machining

Fine machining of bores using pad-guided fine-bore cutting edges for tight tolerance requirements

3. Reverse machining

Reverse circular milling of chamfers with replaceable tangential inserts

2. Main bearing bore

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

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

Features and Machining Requirements

与铝相比，这些材料成本更低，但比重更高。铸铁耐
磨并能承受高负载。

锻造铝材或球墨铸铁
高质量标准，因为它是安全相关部件
大批量
严格的位置公差
高工艺可靠性和尺寸精度

高磨蚀性
根据夹紧装置和工艺步骤的数量，刀具的可接近性很困难
通过正角切削刃几何形状减少切削力
适配的切削值
受控的断屑

1. 转向拉杆/转向臂的连接

盘形铣刀

切向技术带来工艺可靠的铣削
每个可转位刀片有八个切削刃，可实现经济的切削加工
减振器可减少振动

2. 铣削加工

NeoMill-8-方肩铣刀

方肩铣削时实现最高的经济性
每个可转位刀片有八个切削刃，可实现经济的切削加工
切削深度可多达 8 mm

3. Anbindung Schwinge/Querlenker

Kegelreibahle

Höchste Genauigkeit durch Führungsleisten und µm-genaues Einstellen der Wendeschneidplatten
Wendeplattentechnik für höchste Flexibilität bei der Schneidstoffauswahl zur Optimierung von Standzeiten und Oberflächenqualität

4. Hauptlagerbohrung

1. Vorbearbeitung
Aufbohrwerkzeug mit Wendeschneidplatten

Präzisionsaufbohrwerkzeug mit Kurzklemmhaltern
Hohe Flexibilität durch schnelle und einfache Austauschbarkeit
Justiermöglichkeit für großen Einstellweg

2. Semi-Finish-Bearbeitung
Bohrfräskombination mit Wendeschneideplatten

Hohe Leistungsfähigkeit durch die Verwendung der Tangentialtechnologie
Kurzklemmhalter für hohe Flexibilität durch schnelle und einfache Austauschbarkeit

3. Fertigbearbeitung
Hochleistungsreibahle HPR400

Prozesssichere Bearbeitung großer Durchmesser
Einfaches Handling ohne Einstellaufwand
Hohe Genauigkeit: Präzision einer gelöteten Reibahle