Abstract: A wheel axle suspension adapted to suspend an axle body of a wheel axle from a vehicle chassis comprises on both sides of the vehicle a bearing bracket arranged on the vehicle chassis. A rigid or flexible trailing arm extends in a longitudinal direction of the vehicle. The trailing arm has a resilient bush at a front end by means of which the trailing arm is hingedly connected to the bearing bracket. The trailing arm furthermore has a contact region essentially complementary to a portion of the outer contour of the axle body, where the axle body, in a fitted position, bears directly against the trailing arm. A support part opposes the contact region of the axle body. The support part is provided with a recess for accommodating the axle body, and is provided with a securing arm extending further towards the rear which is adapted to be secured to a pneumatic spring. Tensioning elements are provided tensioning the support part and the contact region of the trailing arm towards each other against the axle body.

Abstract: The invention relates to a method for manufacturing of a flexible trailing arm for a wheel axle suspension of a vehicle such as a lorry or a trailer. In the method a steel blank is heated. Next, the blank is formed into the desired shape of the trailing arm by means of a suitable forming process. Following that the trailing arm is austempered by cooling it in a warm fluid medium.

Abstract: A wheel axle suspension adapted to suspend an axle body of a wheel axle from a vehicle chassis comprises on both sides of the vehicle a bearing bracket arranged on the vehicle chassis. A rigid or flexible trailing arm extends in a longitudinal direction of the vehicle. The trailing arm has a resilient bush at a front end by means of which the trailing arm is hingedly connected to said bearing bracket. The trailing arm furthermore has a contact region essentially complementary to a portion of the outer contour of the axle body, where the axle body, in a fitted position, bears directly against. A support part opposes said contact region of the axle body. The support part is provided with a recess for accommodating the axle body, and is provided with a securing arm extending further towards the rear which is adapted to be secured to a pneumatic spring. Tensioning elements are provided tensioning the support part and the contact region of the trailing arm towards each other against the axle body.

Abstract: A wheel axle suspension for suspending a round hollow axle (10) from a vehicle comprises on both sides of the vehicle a trailing arm (1,41,51) to which the axle (10) is attached. The trailing arm is hingedly connected at the front to a bearing bracket (42) which is arranged on the vehicle chassis (43). A pneumatic spring (44) is operational between the trailing arm and the chassis. The axle body bears directly against a contact region (5,45,55) of the trailing arm. The contact region is essentially complementary to the outer contour of the axle body, wherein, on that side of the axle body opposite the contact region, a support part (20,46,56) is provided with a recess (21) for accommodating the axle. The support part is clamped against the axle by means of clamping means (23,24,47,48). At the location of the contact region, the trailing arm is wider than in the region (2,41a, 52) which is situated immediately in front thereof.

Abstract: The invention relates to a method for manufacturing of a flexible trailing arm for a wheel axle suspension of a vehicle such as a lorry or a trailer. In the method a steel blank is heated. Next, the blank is formed into the desired shape of the trailing arm by means of a suitable forming process. Following that the trailing arm is austempered by cooling it in a warm fluid medium.

Abstract: A wheel axle suspension for suspending a round hollow axle (10) from a vehicle comprises on both sides of the vehicle a trailing arm (1,41,51) to which the axle (10) is attached. The trailing arm is hingedly connected at the front to a bearing bracket (42) which is arranged on the vehicle chassis (43). A pneumatic spring (44) is operational between the trailing arm and the chassis. The axle body bears directly against a contact region (5,45,55) of the trailing arm. The contact region is essentially complementary to the outer contour of the axle body, wherein, on that side of the axle body opposite the contact region, a support part (20,46,56) is provided with a recess (21) for accommodating the axle. The support part is clamped against the axle by means of clamping means (23,24,47,48). At the location of the contact region, the trailing arm is wider than in the region (2,41a, 52) which is situated immediately in front thereof.