Document 2b3Vm90nerJg7xeXJDb2zmya
FILE NAME: Allied Signal Bendix (ASB) DATE: 1981
DOC#: ASB034
DOCUMENT DESCRIPTION: Journal Article Excerpt - Clutch Characteristics & Newspaper Article
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and clutch
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characteristics
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Characteristic ~
Pads
Wear
Friction: Cold
Hot
Noisa
Compressibility
'
Metal Mata
Duty For Usa
Table 1 -- General Properties ol Brake Linings
High Organic Class A
Poor Excellent Highest Lowest NOne Lots No scoring Standard
Medium Organic Class B
Good
Good
Lower
Higher
Little
^
Some
~~~ ' Some scoring
^ v ^Medium heavy
Low Organic No Asbestos
ClassC
Excellent Fair High + Stab. High + Stab Lots Little Lots of scoring Heavy
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Characteristic ,
TaMe 2 1 :
1:
.
' :
LFW-1 Results at 27.3 kg Load at Variable Speeds (Step Change)
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Class C + 10%
. Class A
Class 8
Class C
Friction Modi-
tier "A"
Wear (General Rating) LFW-1 on blocks, mg
l Friction-Cold (General Rating)
LFW-1. *T *C ) ' at2000rpm
Excellent 189
Highest 0.38 (49)
Good 381
Lower 0.22 (38)
Fair 587
High and Stable 0.48-0.39 (55)
490 1.
'1
----- 0.27-0.30 (55)
Hot (General Rating)
LFW-1, M(TmQ
9 1200 rpm 91000 rpm
Lowest
0.30(107) 0.33(115)
Higher
0.28 (82) 0.38 (232)
' 0.38(143)
0.35(150)
Noise (General Rating) LFW-1
None Vary slight at one speed
Little None
Lots Some at several speeds
None
Metal Mate (General Rating) LFW-1 Test ring, mg loss
No scoring 13
Some scoring 236
Medium-heavy
scoring
634
270
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for longer engine life
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quality instruments.
R604 PYROMETER
Th* n in O trt) of in * pyromtar mdu*try i t thi* 3* inttrumant which iattura* th * readout on t 0* to 1M0*F ici* and t 0* to '0 0 0 *0 Seal*. Contrattino colora on ma dial allow aaty r#*dawnty and th* tcala >a large lor accurata mtarpratation.
R609 TURBOCATOR
To aaaitt th# truck ooarator in cluauing eraatar luat aconomy and longar angina nfa. this dual acalt matnimant mdicataa a x n tu tt tamparatura on ona acalt and turOochargar boost p ra tiu r* on ma othar By monitonng Both acalaa daily, an aarty indication of angina prooiamt can Da foraaaan
INTERMITTENT WINDSHIELD WIPER CONTROL lor air powernd wipers
Fig. 1--LFW-1 Coefficient of friction vs. speed.
most noise, also gave the most stable frictional properties with speed and temperature as shown in Fig. 1. More consistent coef ficient of friction properties were obtained from the Class C proto type between 600 and 1200 rpm. Class C prototype produced less noise than the standard Class C brake pad. The difference be tween the maximum and mini mum coefficient of friction was less with the prototype contain ing Friction Modifier "A" than standard Class C material.
Desirable characteristics of Class B (lower wear, less noise, and a more constant coefficient of friction) may be achieved through use of the 10% Friction Modifier "A" composition. It must be noted that this percen tage should not be considered as the amount necessary for other compositions.
Commercial applications
New technology for these new friction modifiers was first de veloped in Dow Coming's Munich Research and Development Lab oratory. The first commercial eval uation and successes were in Eur opean brake pads.
Friction Modifier "A" has been used in the brake pads of a large European car for several yean. The performance of the brake
pad with the new friction modi
fier was compared with another
composition containing M0S2.
Comparisons made on a dy
namometer showed the following
advantages over the M0S2 com
position:
lower noise level
less dependence of friction coef
ficient on temperature
decreased wear of the brake pad
(30% increase in lifetime)
decreased wear of the metal disc.
Since the initial usage in Eur
ope, other European brake and
clutch material manufacturers
have evaluated these new friction
modifiers. They have generally
found them equal or superior to
MoS:, but they do hot always
provide the same characteristics
since different materials are used
in each formulation!
In the U.S.A. a number of
brake and clutch friction ma
terial manufacturers have already
evaluated the friction modifiers.
Some have found that in semi
metallic brake pads without as
bestos, these new additives can
reduce noise, wear, and fade. In
some cases, no improvement was
found.
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Based on SA papar 790717, "Controlled Friction Additive* for Brake Pad* and Clutchea." by Harry M. ScUefer and Georf* V. Kubcaak, Dow Corninf Corp.
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The GLOBE & MAIL January 6, 1981
35-yedr-old employee o f Bendix
becomes 13th victim of asbestos
WINDSOR (CP) -- A 35-year-old
man has become the 13th victim to
die of an asbestos-related cancer
after working at one of the two
Windsor plants of Bendix Corp.,
the man's,union representative and
closest friend says.
.
Tommy Dunn, who worked for
alm ost 12 years in the welding
department of one of the plants,
died on Saturday.
Doctors operated on Mr. Dunn in
December, 1979, for mesothelioma,
a rare form of inoperable cancer
linked to asbestos fibres. They
discovered two tumors in an ad
vanced stage in his lung and gave
him a maximum of two years to
live.
Rick Byrne, former plant chair man for Local 195 of the United Auto Workers, who worked with
Mr.' Dunn for 11 years, and other union negotiators have taken the cases of 19 Bendix workers to the Workmen's Compensation Board.
Thirteen of the 19, including Mr. Dunn, have died of asbestos-relat ed diseases.
Mr. Byrne said Mf. Dunn asked him to check with the board to see whether he was eligible for bene fits. After long negotiations, the
board decided Mr. Dunn's illness made him suitable for compensa tion and he received payment re troactive to November, 1979.
However, Bendix. which uses
asbestos in the manufacture of automotive brake linings, has never acknowledged that it was
directly responsible for Mr. Dunn's illness. Mr. Bym e said Mr. Dunn was one of those concerned that Bendix did not completely comply
with a 1966 Government request to
clean up its plants. "They were supposed to clean it
up in 1966 and Tommy didn't know why they didn't clean it up."
Now, however, Mr. Byme said
that although the union has made some headway, negotiations will be tougher because Bendix closed its two Windsor plants last August.
"What can you change now -- they're gone."