Page 36 - Catalog spare parts BPW brake disc

Auto Parts / BPW-EL-TSB 31231601e Page 35
Hubs, hub bearings 4

General

Hub seal for ECO Plus bearings
Dust and dirt sealing lips
The innovative ECO Seal sealing system is used on all axles
with the BPW ECO Disc Trailer disc brake.
With this hub seal, the primary seal lip (ECO Seal ) no longer
seals directly against the race of the hub but instead
against a race which is integrated in the seal itself.
This new design enables the circumferential velocity of
the seal to be signifi cantly reduced, and with that, the
amount of wear. In addition, the wheel bearing is provided
with even better protection against dirt penetration by
means of the covering dust and dirt sealing lips.
Main sealing lip

Benefi ts:
An introversive pre-stressed main seal lip
with a low circumferential speed and a
low thermal load, resulting in low wear Fig. ECO Plus 2 8 - 9t
An approximately 30% reduction in
frictional resistance inside the seal
(compared with conventional seals)
The seal is well protected during service Dust and dirt sealing lips
due to the cartridge construction
Pre-stressed main seal lip with ventilation
function, no opening at low pressures
No coarse dirt seal required

Main sealing lip

Fig. ECO Plus 10 - 12t

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