Page 24 - Catalog spare parts BPW eco discs

Auto Parts / BPW-EL-TSB 31231601e Page 23
Brake parts BPW ECO Disc 3

TSB 3709 / 4309 / 4312 3.2
Brake discs

Brake discs

Brake BPW Code no. Pitch circle / hole pattern Wheel hub Off set Series Remark
TSB 3709 03.088.34.15.7 275 / 8 holes S, Z 0
03.088.34.16.7 275 / 8 holes S, Z 0 with mounting for exciter ring
03.088.34.14.7 335 / 10 holes S, Z, B 0 / 120 IBD repl. by 03.088.34.21.7
03.088.34.17.7 335 / 10 holes S 0 IBD with mounting for exciter ring
repl. by 03.088.34.22.7
03.088.34.21.7 335 / 10 Loch S, Z, B 0 / 120 IBD
03.084.34.22.7 335 / 10 Loch S 0 IBD 10t, with mounting for
exciter ring
TSB 4309 03.088.35.05.7 * 335 / 10 holes S, Z, B 0 / 120 IBD repl. by 03.088.35.12.7
03.088.35.12.7 335 / 10 Loch S, Z, B 0 / 120 IBD
TSB 4312 03.088.35.05.7 * 335 / 10 holes S, Z 0 IBD repl. by 03.088.35.12.7
03.088.35.12.7 335 / 10 Loch S, Z 0 IBD
S = Single wheels, off set 0
B = Single wheels, off set 120
Z = Twin wheels

Wear status of the brake disc
The brake disc is to be regularly checked for its residual
thickness and any damage to the braking surface.

The residual thickness of the brake disc must not be
less than the permissible minimum in any area of the
disc.

Network-like heat cracking (A), radial cracks up to
1.5 mm in width and depth (B) and pitting of the braking

surface less than 1.5 mm (C) are permissible.
Continuous cracks (D) are not permissible.
If the brake disc has reached its wear limit or its
braking surface shows inadmissible damage, it must
be replaced.

Technical details:
Disc thickness, new = 45 mm
Minimum permissible disc thickness = 37 mm
(check with slide gauge)

In the case of surface conditions A - C, the brake disc can be used until the
minimum permissible disc thickness has been reached.

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