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LEMFÖRDER suspension joints

Precise flexibility

As a link between the road and the vehicle, the wheel suspension joints ensure accurate wheel guidance and easy steerability. LEMFÖRDER suspension joints boast excellent responsiveness thanks to low torques, display extremely low elasticities and, therefore, permit precise and safe driving maneuvers.

As a link between the road and the vehicle, the wheel suspension joints ensure accurate wheel guidance and easy steerability. LEMFÖRDER suspension joints boast excellent responsiveness thanks to low torques, display extremely low elasticities and, therefore, permit precise and safe driving maneuvers.

LEMFÖRDER suspension ball joint
LEMFOERDER suspension joint

Supporting joint and suspension ball joint

The most important wheel suspension designs include (wheel) suspension ball joints, supporting joints and cross-axis joints. These ball joints connect the wheel suspension control arms with the wheel carrier and, consequently, with the wheel.

While the suspension ball joint usually only transfers longitudinal and lateral forces with a low amount of vertical forces, the supporting joint also supports the vehicle weight (axial spring and damper forces).

LEMFÖRDER suspension ball joint
LEMFOERDER suspension joint

Supporting joint and suspension ball joint

The most important wheel suspension designs include (wheel) suspension ball joints, supporting joints and cross-axis joints. These ball joints connect the wheel suspension control arms with the wheel carrier and, consequently, with the wheel.

While the suspension ball joint usually only transfers longitudinal and lateral forces with a low amount of vertical forces, the supporting joint also supports the vehicle weight (axial spring and damper forces).

LEMFÖRDER suspension joints/suspension ball joints
LEMFOERDER suspension ball joints

Joint function: guiding the wheel

The (wheel) suspension ball joint establishes the connection and, consequently, the support between the front axle control arms and the axle body/carrier (steering knuckle). Its task is to guide the wheel carrier and wheel, to enable the spring deflection of the wheel and to permit the steering movement on the front axle. It is always installed at the triangle apex of the control arm. The height fixation is performed via the ball stud. The ball joint should be easy to move, low in flexibility, maintenance-free and noise-insulating. These four, partly contradicting, requirements are met at LEMFÖRDER, for instance thanks to premium plastic shells in the joint.

LEMFÖRDER suspension joints/suspension ball joints
LEMFOERDER suspension ball joints

Joint function: guiding the wheel

The (wheel) suspension ball joint establishes the connection and, consequently, the support between the front axle control arms and the axle body/carrier (steering knuckle). Its task is to guide the wheel carrier and wheel, to enable the spring deflection of the wheel and to permit the steering movement on the front axle. It is always installed at the triangle apex of the control arm. The height fixation is performed via the ball stud. The ball joint should be easy to move, low in flexibility, maintenance-free and noise-insulating. These four, partly contradicting, requirements are met at LEMFÖRDER, for instance thanks to premium plastic shells in the joint.

Joint function: guiding the wheel as well as carrying the body

In terms of design, the suspension ball joints and the supporting joints are only marginally different from one another. The supporting joint is located on the opposite side to the suspension ball joint, assembled in the steering knuckle. It absorbs forces in all directions and can be installed in a suspended or vertical manner. The ball joint housing is usually attached in the control arm and the ball stud is usually attached in the steering knuckle via its conical taper or a cylindrical dog point. Advantage: This mounting is maintenance-free.

LEMFÖRDER supporting joint
LEMFOERDER supporting joint

Joint function: guiding the wheel as well as carrying the body

In terms of design, the suspension ball joints and the supporting joints are only marginally different from one another. The supporting joint is located on the opposite side to the suspension ball joint, assembled in the steering knuckle. It absorbs forces in all directions and can be installed in a suspended or vertical manner. The ball joint housing is usually attached in the control arm and the ball stud is usually attached in the steering knuckle via its conical taper or a cylindrical dog point. Advantage: This mounting is maintenance-free.

LEMFÖRDER supporting joint
LEMFOERDER supporting joint
LEMFÖRDER cross-axis joint
LEMFOERDER cross-axis joint

Cross-axis joints – for special applications

Cross-axis joints are primarily installed on the rear axle. They consist of a ball with cylindrical taper on both sides and a continuous bore in the middle. Although they are similar to the ball joint in terms of function and structure, their anchorage corresponds to that of rubber bearings. In contrast to rubber bearings, cross-axis joints are able to transfer extremely high dynamic forces and have no aligning torque. Cross-axis joints are preferably used if a stiff control arm connection is desired – in sports cars or light commercial vehicles for instance.

LEMFÖRDER cross-axis joint
LEMFOERDER cross-axis joint

Cross-axis joints – for special applications

Cross-axis joints are primarily installed on the rear axle. They consist of a ball with cylindrical taper on both sides and a continuous bore in the middle. Although they are similar to the ball joint in terms of function and structure, their anchorage corresponds to that of rubber bearings. In contrast to rubber bearings, cross-axis joints are able to transfer extremely high dynamic forces and have no aligning torque. Cross-axis joints are preferably used if a stiff control arm connection is desired – in sports cars or light commercial vehicles for instance.

LEMFÖRDER ServicePack for suspension joints

The ServicePack contains all necessary attachment parts required for replacing parts, and in OEM quality. That means it includes (eccentric) screws, nuts, adjustment plates etc. for the neighboring components, if they also need to be undone during the repair work.

LEMFOERDER ServicePack for suspension joints

LEMFÖRDER ServicePack for suspension joints

The ServicePack contains all necessary attachment parts required for replacing parts, and in OEM quality. That means it includes (eccentric) screws, nuts, adjustment plates etc. for the neighboring components, if they also need to be undone during the repair work.

LEMFOERDER ServicePack for suspension joints
Further information