Warner Electric Electric Wheel Brake 12-1_4 x 3-1_2 Installation Instructions - Manual (Page 3)

3 Warner Electric • 800-825-9050 A-216 • 819-0244
Technical Specifications
Brake Rating – 7,500 lbs. to 10,000 lbs. axle
rated per pair. Based on an average retarding
torque which will produce a minimum of 43.5%
retardation, or 14 ft./sec.
2 deceleration from 20
mph initial velocity with 13.3 in. to 17.2 in. rolling
radius tires, with 10.8 volts at the magnets.
Mounting – 6 holes on 5.5" B.C.
Electrical – 12 Volt D.C. system only
Lining Area – 90 sq. in.
Drum Swept Area – 135 sq. in.
Lining Thickness – 5/16" nominal
Assembly Weight – 25 lbs. per brake
7 lbs. per armature
Note: Use with armature type drum only.
5.500
DIA. B.C.
.140 R. Max.
60∞
.535
.525
DIA. (6) HOLES
EQUALLY SPACED.
LOCATED WITHIN
.005 R. OF
TRUE POSITION.
3.060
3.030
1.530
1.515
1.530
1.515
3.060
3.030
.140
.120
6.625
6.595
DIA .
4.500
4.498
DIA.
Axle Flange
Flanges available from a factory source.
12-1/4" x 3-1/2" Utility Brake
Installation Instructions
The performance of your Warner Electric 12-1/4"
x 3-1/2" brake depends greatly on accurate
installation. Since proper installation helps to
assure long life and dependable performance,
please follow these installation instructions
carefully. Pay particular attention to drawing
I-26117 on page 2 of the manual.
General Instructions
The Warner Electric 12-1/4" x 3-1/2" utility
brake is designed for use with one-piece steel
armature number 110-0124, mounted inside
the brake drums.
For other possible combinations, please consult
your Warner Electric sales representative or
Warner Electric at 815-389-3771.
A. Preparing the Brake Mounting Surface
Before installing the brake, check the
concentricity and squareness of the brake
drum to the hub and spindle. To do this,
mount the drum on the spindle according
to the manufacturer’s specifications.
The following tolerances must be held:
Drum friction surface concentric to spindle
centerline within .015-inch T.I.R. (Total Indicator
Reading).
Armature surface square to spindle within
.020-inch T.I.R.
B. Installing on Axle Flanges
1. The axle flange on which the brake mounts
must have a 4.500/4.498-inch pilot diameter.
2. This axle flange must be welded concentric
to the spindle within .015-inch T.I.R.
(measured at the pilot diameter). The axle
must be square to the spindle within
.010-inch T.I.R. (measured at the brake
mounting surface). Refer to drawing I-26117.