Page 41 - Catalog spare parts BPW EL-TS2

Auto Parts / BPW-EL-TS2/TSB 31231902e Page 41
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 disc brake.
With this hub seal, the primary seal lip (ECO Seal ) no longer
seals directly against the sealing partner (bearing race
of the hub) but instead against a bearing race which is
integrated in the seal itself.
This new design has made it possible to significantly
reduce the circumferential speed of the seal and thus
wear. In addition, the wheel bearing is provided with even
better protection against dirt penetration by means of the
Main sealing lip
covering dust and dirt sealing lips.

Advantages:

An introversive pre-stressed main seal lip with a
low circumferential speed and a low thermal load, Fig. ECO Plus 2 + ECO Plus 3 (8 - 9 t)
resulting in low wear
An approximately 30 % reduction in frictional
resistance inside the seal (compared with
conventional seals) Dust and dirt sealing lips
The seal is well protected during service due to the
cartridge construction
Pretensioned main sealing lip with venting function,
no opening with negative pressure
No dirt seal necessary

Main sealing lip

Fig. ECO Plus (10 - 12 t)

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