Cars

Bringing more performance
and comfort to the roads

SAFE SUSPENSION AND MOVEMENT: SOLUTIONS FOR MODERN CARS

You drive better with experience. The first European disc spring clutch, the cornerstone of all of today’s vehicle dry clutches, was invented by us. The “HÄUSSERMANN clutch” is known worldwide under the brand name LuK (Lamellen und Kupplungsbau August Häussermann). We have been one of the leading engineering partners in the automotive sector for more than 95 years.

Our high-performance solutions, individually designed to meet specific requirements, are used in the drive train, chassis and comfort and safety systems of renowned automobile brands, from the largest automotive manufacturers (OEMs) to suppliers (first tiers) and the spare parts sector. The IATF 16949 certified products meet the highest automotive standards thanks to the variable characteristic curve design with installation space and weight-optimized design, high radial stiffness and permanently safe function.

Our product range includes high-end disc springs, disc spring columns, customized special solutions, diaphragm springs / pressure plates, slotted springs, wave springs, separating springs, deep-drawn parts / heat shields, hot-formed punched and bent parts made of spring steel, and other components.

HÄUSSERMANN – THE BEST SOLUTION FOR

Engine / drive train: engine systems, drive systems, automatic transmissions, clutches, dual clutches, turbochargers, steel pistons, limited slip differentials, chain tensioners
Chassis: shock absorbers, vibration dampers, braking systems, steering systems
Safety and comfort: arm rests, airbags, climate control, exhaust system
E-mobility: vehicles and components

PASSENGER CAR AUTOMATIC TRANSMISSION: BRINGING DYNAMIC PERFORMANCE TO THE ROAD

More dynamics and efficiency in the smallest installation space – for smooth gear changes without interruption in acceleration. The driving forces include disc springs and wave springs (spring washers) from HÄUSSERMANN. They perform important functions in the modulation of multi-disc clutches: in automatic transmissions of cars with a combustion engine to CO₂-optimized hybrid drives, they improve performance and efficiency.

In wet clutches, our spring technology separates the plates, reducing drag torque losses for jerk-free gearshifts. High-end IATF 16949 certified disc springs from HÄUSSERMANN combine more driving comfort with ease. This allows weight savings of up to 5% and shorter, more compact gear units with the highest degree of integration.

HIGH LOAD CAPACITY, DYNAMIC USE, LESS WEAR

In order to ensure high thermal load capacity, the springs are warm pre-set using our special process. This reduces relaxation to a minimum. The diameter ranges of our springs are between 70 and 800 mm.

Our wave springs can reduce the installation height by up to 50 percent in static to medium dynamic applications.

Our disc springs replace a large number of helical compression springs. Slotted disc springs are mainly used in automatic transmissions and dual-clutch transmissions, e.g. as return springs for piston return in clutches. The spring holds the clutch piston and pulls it back, it compensates for the wear on the friction discs and at the same time functions as a damping spring.

THE ADVANTAGES

Long service life, dynamically loadable, even under extreme force/stress conditions
Individual design of the load characteristics for every application in accordance with the specific load and calibration requirements
Maximum spring return forces can be achieved in the smallest space
Feasible with narrow load tolerances (<+/-5%)
Minimization of the overall size and weight of the gearbox (compared to conventional coil spring)
Certified according to IATF 16949

HÄUSSERMANN PRODUCTS IN AUTOMATIC TRANSMISSIONS

Wave springs
Preloaded disc spring prevents gearshift jolts in wet starting clutch
Disc spring for piston release on clutches
Separating spring for quick clutch release
Disc spring for noise reduction in dual-mass flywheel
Corrugated friction core plates to reduce clutch resistance

PASSENGER CAR CLUTCHES: POWERFUL AND RELAXED INTO GEAR

Combining gearshift comfort with efficiency and driving dynamics, minimizing friction losses between the engine and gearbox. There are great requirements placed on modern clutch systems. It’s all about getting into gear smoothly. Over and over again.

Avoiding jerking and saving CO₂. HÄUSSERMANN disc springs / diaphragm springs, wave springs, separating springs and other clutch components effortlessly withstand the constant back and forth with varying loads. They function precisely and permanently as a driving force for automotive progress. In the original equipment sector and in the spare parts sector. Even under extreme conditions. And they make clutch and transmission systems more compact and lighter.

DISC SPRINGS FOR PRESSURE PLATES IN CLUTCHES: RELIABLE POWER TRANSMISSION

For manual gearboxes, automatic shift gearboxes (ASG)
Precise and fast interruption and closing of the force flow
Vibration damping
Reliable function even after countless clutch operations and increasing clutch lining wear
Long service life, resistant to vibrations, pressure, friction heat, extreme temperatures, dirt and ageing
Ergonomic usability, high level of comfort, consistent pedal forces
Minimum installation space
Certified according to IATF 16949

HÄUSSERMANN PRODUCTS IN PASSENGER CAR CLUTCHES

Wave springs
Preloaded disc spring prevents gearshift jolts in wet starting clutch
Diaphragm spring for outer clutch
Separating spring for quick clutch release
Disc spring for noise reduction in dual-mass flywheel
Corrugated plates to reduce clutch resistance

E-MOBILITY: OPTIMUM SUSPENSION FOR AN EXCITING FUTURE

Power and energy for the mobility of tomorrow: our customer-oriented expertise and product diversity in high-tech spring technology and vibration damping are forward-looking. The innovative solutions certified according to IATF 16949 for gearboxes, clutches, brakes and dampers set standards for progress in all kinds of vehicles and are increasingly in-demand in the e-mobility sector. Wherever movement, suspension and safety are involved, we will support you as a development partner with individual designs and high-end engineering from the initial idea right through to series production. We work together closely with renowned automotive customers in all phases to successfully shape the mobile future.

HÄUSSERMANN SOLUTIONS FOR HYBRID AND ELECTRIC VEHICLES

Disc springs, wave springs, hot-formed sheets of any contour, special springs, spring washers for axial preloading, compensating springs for radial preloading
Spring force, spring travel, spring tension: application-specific performance curves, whether linear, progressive or degressive, for static as well as dynamic loads
Increased performance and (fatigue) life
Optimum damping characteristics
Individual construction and configuration (layers, packages etc.)
Materials and surfaces optimally matched to the application
ITAF 16949 certification

Best performance in many applications
Some examples

Parking brake
Disc springs help prevent vehicles from unintentionally rolling away when parked and enable a second independent braking system with constant clamping forces

Disc springs for wear-free overload clutches with minimum response time
Preloaded high-performance disc springs produce a defined torque (disengagement torque) in the clutch Once the torque limit has been overcome, the ball bearings slide out of their position, interrupting the transmission of the torque

Disc springs for vehicle slip clutch
The disc springs exert an axial force on the clutch discs. If these wear out, disc springs ensure a constant force by adjusting the force curve

Seat adjustment
In vehicle seats, disc springs compensate for the manufacturing tolerances of the fittings and ensure the correct adjustment of the backrest

Drum brakes
The spring assembly absorbs shocks resulting from changes in load

Gas pressure operated shock absorber
The disc spring acts as a spring cushion and positive stop for the working cylinder

Piston return springs in transmissions
Disc springs / disc spring assemblies in piston return springs ensure a uniformly smooth gearshift. The disc springs are compressed by hydraulic pressure via a piston

Preloading of ball bearings by spring washers – for example in electric power steering motors
Compensation of the radial bearing play (differential expansion), noticeable reduction of vibrations in the steering system