BENDIX BW7285, STPD1014 User Manual
I M P ROVED 121/4" TRAILER BRA K E S
Spicer has redesigned its 12
1
/4" trailer axle s-cam
brake for longer life and hard w a r e standardization. The redesigned 121/4" brake will now utilize
two coil retention springs from the popular 161/2" series brake, replacing the previously used “U”
spring design.
A d d i t i o n a l l y, a number of significant product improvements have been made to improve shoe life
by increasing material thickness in the rib and roller areas. Brake geometry has been impro v e d
t h r ough consistent rib placement and rib-to-table welding.
FILLET WELD
I m p roved
rib-to-table weld
p rocess for added
d u r a b i l i t y.
L I N I N G S
Spicer long life FMSI
#4692 Friction Material.
TA B L E
Redesigned
to improve rib
placement
c o n s i s t e n c y.
SPICER 121/4"
T RAILER BRA K E S
R I B S
Added material for
i m p roved shoe life.
ROLLER POCKETS
S t rengthened by
i n c reasing material
t h i c k n e s s .
H A R DWA R E
S t a n d a rdized to re d u c e
i n v e n t o ry costs.
121/4" TRAILER BRA K E
All Spicer axles equipped with 121/4" brakes built prior to November 1, 1996
(the effective date of the product improvements), can be re t ro fi tted with the new
brake shoe assembly without changing the spider or s-cam. The part number
for the Spicer conversion kit is #M12KBH10. One conversion kit is re q u i r ed
per axle. Each kit contains two re t u rn and four coil springs, eight washers,
eight snap rings, and four anchor pins.
Spicer Trailer Products Division
Dana Corporation
P.O. Box 2527
F o rt Wayne, IN 46801-2527
Phone: 219-481-3789
Fax: 219-4 81- 3 418
AVAILABLE CONFIGURAT I O N S
Spicer 121/4" brakes are available in three diff e r ent sizes, with several diff e re n t
lining options.
SPICER 121/4" S-CAM BRA K E S
S I Z E / M O D E L 12.25" X 5" 12.25" X 5.5" 12.25" X 7.5"
G A W Range 6,000 - 8,000 8,000 - 10,000 10,000 - 17,500
S h o e S t a m p e d S t a m p e d S t a m p e d
S p i d e r F o rg e d F o rg e d F o rg e d
Anchor Pins D u a l D u a l D u a l
Rivets per Axle 7 2 7 2 8 0
Volume as % of 4692 6 7 % 7 4 % 1 0 0 %
Lining Wear Volume (cu. in.) 5 7 . 3 6 6 3 . 0 7 8 5 . 7 4
FMSI # 4 6 6 1 E 4 5 3 6 E 4 6 9 2
Spicer Support Line
8 00-6 66-8 6 8 8
URL: http://www. d a n a . c o m
S T P D - 1 0 1 4
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