Page 28 - BPW axles with air suspension Series O SL AL

BPW axles with air suspension

6.1 Air bag

BPW air bags are firmly rolled into the top air bag
cover and are bonded onto the clamping plate at
the bottom by vulcanisation.
Upper bag attachment
Air bag cover
Depending on the version, a plate or bracket is
welded onto the vehicle frame for securing the up-
per air bag cover. The air bag cover is bolted onto
it using two M 12 securing nuts. The air bag piston
at the bottom is bolted onto the trailing arm using
Bump stops
two M16 securing bolts.
Air bag
Tightening torques, see last page.

Rolling piston The maximum lateral offset between the top and
(fibre-reinforced plastic) bottom attachment must not exceed 10 mm. The
(Air bag piston) top and bottom bag attachments must not be in-
stalled with any rotational misalignment.
Air bag plate
Bottom bag attachment T Thhee cclleeaarraannccee bbeettwweeeenn tthhee aaiirr bbaagg aanndd ttyyrreess oorr tthhee
b brraakkee ccyylliinnddeerr wwiitthh tthhee mmaaxxiimmuumm bbaagg ddiia ammeetteerr
s shhoouulldd bbee mmiinn.. 3300 mmmm..

D Deessiiggnnss::

73
a: BPW 30 for 200 mm stroke at axle centre
25 BPW 30 K for 180 mm stroke at axle centre
M 22x1.5

BPW 30 Diameter max. 300 mm at approx. 5 bar
150 Air bag specific pressure
max. Ø 300
0.00023 bar / N (at ride height)
Air bag offset V = 0, 20, 60 mm (series)

b: BPW 36 for 200 mm stroke at axle centre
95 BPW 36-1 for up to 340 mm stroke at axle
25 centre
BPW 36-5 for up to 380 mm stroke at axle
M 22x1.5 centre
BPW 36 BPW 36-2 for up to 450 mm stroke at axle
max. Ø 360
210 centre
BPW 36 K for 180 mm stroke at axle centre

Diameter max. 360 mm at approx. 5 bar
Air bag specific pressure
0.000156 bar / N (at ride height)
Bag offset V = 80 mm (series)
V = 45 mm

Air bags with a reinforced base plate must be
used for tipper vehicles!

28 BPW-EA-Luft 1023701e