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    Page 11 - Catalog spare parts BPW brake disc
    P. 11
    Catalogs auto parts for car and truck

    AUTO PARTS

    Page 11 - Catalog spare parts BPW brake disc

    Auto Parts / Page 10                                                                               BPW-EL-TSB 31231601e
            2       Steering axle, steering lock
    
    
                    General
    
    
    
            BPW Steering axles series LL
            No one wants to loose rubber from their tyres every time
            they turn a corner. So we’ve developed an axle which
            allows your tyres to roll instead of slide.
            The BPW LL self-steering axle.
            The enormous advantages of the steering axle come
            to the fore when manoeuvring: Better manoeuvrability,
            reduced wear on all tyres and less fuel consumption.
            As a result, the BPW self-steering axle is the right
            economical solution for delivery and distribution traffi  c
            chiefl y consisting of journeys in congested conurbations
            and cities.
    
    
    
    
    
    
    
    
    
            Function
            LL stands for “load-dependent steering stabilisation”
            and it describes the unique functional principle of the
            BPW self-steering axle.
    
    
            Conventional steering axle designs require steering
            stabilisers powered from an external source – this is not
            the case with the BPW self-steering axle. The axle beam
            and axle stub are connected to undulating thrust bearings
            via steering pivots.
            When driving straight ahead (zero position), the
            undulations in the thrust washers keep the wheels on
            track. The weight of the vehicle presses the undulating
            contours of the upper and lower thrust washers together.
            The wheels remain stable in the correct straight-ahead
            position.
            When the semi-trailer follows the tractor unit into a
            curve, the wheel castor action ensures the wheels turn
            in accordance with the curve radius (the thrust washers
            slide over one another).
            The frictional resistance changes according to the load
            on the axle. As a result, a steering angle (of 8 to 27°,
            depending on the axle type) is achieved according to the
            load, and is entirely controlled by mechanical means.
            The link connecting the wheels uses a steering lock to
            prevent the wheels from steering when the vehicle is
            reversing.
    
    
    
                                    
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