Page 23 - BPW axles with air suspension Series O SL AL

Struts / bolted or welded aluminium air suspension hanger brackets 4.5.5

Example of struts in welded / bolted 1 1 CCrroossssmmeemmbbeerr
aluminium air suspension hanger
brackets with torsionally rigid vehicle The lateral forces that occur during cornering are
frame in the longitudinal direction carried by the hanger brackets and bracing plates
as a flexural load and channelled into the cross-
(aluminium frame in self-supporting member and/or channel crossmember. The size of
vehicles). the crossmember must be of a sufficient size (Wx).

2 2 BBrraacciinngg ppllaatteess

A substantial bracing plate corresponding to the
hanger bracket height must be bolted on at both si-
des between the hanger bracket flange and cross-
member. The bracing plate should extend from the
head of the hanger bracket to the bush of the
spring bolt mounting. All bolted connections of the
hanger bracket to the vehicle frame and to the bra-
cing plate must be made using M16 8.8 hexagon
bolts with flange according to DIN EN 1665.
Air suspension bolted
hanger bracket

3 3 VVeerrttiiccaall sseeccttiioonnss
1 1
3 3
When the bottom flange sections of the longitudinal
member are relatively thin, a vertical profile must be
attached in the area of the hanger bracket in order
to stiffen the frame.

2
R Reemmaarrkkss::

In torsionally rigid vehicle frames, the struts for the
air suspension hanger brackets can be made with a
corresponding level of stiffness.

When the bottom flanges are exposed to flexural
loadings, it is not permitted for the aluminium air
suspension hanger brackets to be welded on!

See also page 18 for welding information.

Other details can be seen in the drawing
C-04.000.501516.

Air suspension welded
hanger bracket

BPW-EA-Luft 1023701e 23