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LIGHT DUTY
AXLES P E C I F I C A T I O N S
MADE IN THE USA
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Quality . . . Quality systems have been implemented in all
phases of the manufacturing process. These methods are employed at
every step along the way, beginning with the enforcement of
stringent specifications on all incoming material. Once in
production, components and assemblies must pass through multiple
checks before proceeding to the next stage. State-of-the-art
manufacturing and assembly equipment ensure consistent tolerances,
structurally sound welds, and a uniform powder coated finish.
• CSA approved 3.5K and 6K electric brake axles• 2 year limited
warranty on tubular axles • 5 year warranty on Equalizer axles•
Patented “Posi-Lube™” system
We use a state-of-the-art 4-stage powder coat system to ensure a
long lasting, durable finish:
Stage 1. Extreme CleanStage 2. Heated DryStage 3. Powder
CoatStage 4. High Temperature Cure
We have in-house powder coating capabilities.
Service . . . A full line of Rockwell American products are
available at all of our distribution locations. Tie that together
with our two axle manufacturing locations and you will find our
service level is unsurpassed in the trailer industry.
Value . . . Buying Rockwell American axles direct from the
manufacturer reduces your overall cost, lessens the chance of
ordering errors, and provides a direct line of communication if a
warranty issue should ever arise.
All distribution locations provide –• Customer service•
Technical support• Warranty claim processing• Replacement parts•
Available delivery on our company-owned fleet
MANUFACTURING
AXLESQUALITY SERVICE VALUE
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Rockwell’s Equalizer Torsion Axle – a premium choice for your
premium cargoEach spindle is attached to a trailing arm which moves
up and down during road shock. This movement is transferred to a
steel inner bar within the axle beam. Rubber cords then ab sorb the
shock from the twisting inner bar. This design overcomes the main
drawback to a leaf spring suspension – a lack of damping, which
leads to a slower return to stability after impact.
Period of Oscillation
Am
plit
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e o
f O
scill
atio
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Damping Control of a Steel Leaf Spring
The equalizer has the same initial amplitude, but see the swift
dampening with quick return to stability.
Period of Oscillation
Am
plit
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e o
f O
scill
atio
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Damping Control of the Equalizer
Trailing Arm Spindle
THE BENEFITSSuperior Performance - The independent action
provides greater control and stability which makes towing the
trailer much easier. Wheel vibration is absorbed by the rubber
cords.
Variable Capacity - Capacity can be tailored to your
require-ments in 100 lb. increments.
Neat, Clean, Functional - Since the torsion axle mounts directly
to the frame, we can provide most any ground clearance you desire.
There are no leaf springs, hangers, u-bolts, etc. to become clogged
with mud, snow or ice.
Reduced Costs - With no metal-to-metal contact, (no springs,
bolts, shackle straps), maintenance is minimal. The added strength
and support provided by the torsion axle beam also helps stiffen
the frame.
Easy Installation - Top or side (outboard, inboard) mounting
options.
Service/Delivery - Excellent service, delivery, lead times and
freight costs are integral to the success of your business. We
provide all of these, giving you the greatest chance for
success.
Five Year Warranty - A five year limited warranty is standard on
the Equalizer beam and suspension components of that beam.
AXLE RANGE CAPACITY
Capacity Range
2,000 lb. Equalizer 500 - 2,000 lbs.
3,500 lb. Equalizer 2,100 - 3,500 lbs.
6,000 lb. Equalizer 3,600 - 6,000 lbs.
7,000 lb. Equalizer 6,100 - 7,000 lbs.
8,000 lb. Equalizer 7,100 - 8,000 lbs.
10,000 lb. Equalizer 8,100 - 10,000 lbs.
Axle Tube
Rubber Cords
Inner Bar (connects to trailing arm)
AXLESTHE EQUALIZER TORSION AXLE
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Note: For replacement purposes the mounting bracket has
diagonally slotted side mount holes. This is to accommodate a
variety of hole patterns in other side mounted torsion axle
systems.Warning: Application of heat to the axle tube will damage
the rubber and void the warranty.
1"
AB
Frame.25"
Top Mounting
.75"
Top Mounting High Profile
C
Frame.50"
Side Mounting w/SideMount Bracket
Side Mounting High Profilew/Side Mount Bracket
Trailing Arms• All measurements are in inches and are calculated
from the bottom of the frame.• A minus sign indicates that the
spindle is above the top of the frame bracket.• Allow an additional
3” above the full load dimensions for fender clearance.• Add .25”
to start angle dimensions for side mounting with kit.• Add .5” to
start angle dimensions for high profile top mounting.• Add .75” to
start angle dimensions for high profile side mounting.
NO LOAD = Position of trailing arm without a load.FULL LOAD =
Position of trailing arm at full capacity load.
AXLE TOP MOUNTED SIDE MOUNTED CAPACITY KIT PART# DIM. A DIM. B
BOLT SIZE KIT PART # DIM. C BOLT SIZE
Mounting Kits And Dimensions
2,000 lb. 2001-B 8” 1” .5” 2001-S 8.28” .5”
3,500 lb. 3501-B 8” 1.25” .625” 3501-S 8.28” .625”
6,000 lb. 3501-B 9” 1.25” .625” 6001-S 9.25” .75”
7,000 lb. 3501-B 9” 1.25” .625” 7001-S 9.25” .75”
8,000 lb. / 10,000 lb. 8001-B 10.5” 1.25” .75” 8001-S 10.5”
.75”
AXLE NUMBER START ANGLE POSITION
2,000 LB. 3,500 LB. 6,000 LB. 7,000 LB. 8,000 & 10,000
LB.
At No Load -.75” -.56” -.28” -.06” .63”
22.5° Above At Full Load -2.75” -2.50” -2.25” -2.00” 2.30”
At Shock Load -3.63” -3.43” -3.15” -2.90” 3.20”
At No Load .25” .44” .75” .94” 1.64”
10° Above At Full Load -1.94” -1.69” -1.44” -1.19” -1.50”
At Shock Load -3.00” -2.75” -2.50” -2.25” -2.56”
At No Load 1.25” 1.50” 1.75” 2.00” 2.70”
0° Level At Full Load -1.00” -.75” -.50” -.25” -.56”
At Shock Load -2.19” -1.94” -1.69” -1.44” -1.75”
At No Load 2.30” 2.50” 2.80” 3.06” 4.25”
10° Down At Full Load 0.00” .25” .50” .75” 1.44”
At Shock Load -1.25” -1.06” -.75” -.50” -.81”
At No Load 3.30” 3.50” 3.80” 4.06” 4.75”
22.5° Down At Full Load 1.06” 1.25” 1.56” 1.80” 2.50”
At Shock Load -.25” -.06” .25” .44” 1.25”
At No Load 4.70” 4.95” 5.20” 5.35” 5.70”
35° Down At Full Load 2.80” 3.00” 3.32” 3.50” 4.20”
At Shock Load 1.50” 1.70” 2.00” 2.26” 2.94”
At No Load 5.50” 5.75” 6.00” 6.25” 6.94”
45° Down At Full Load 3.60” 3.80” 4.12” 4.30” 5.0”
At Shock Load 2.30” 2.50” 2.80” 3.06” 3.75”
SHOCK LOAD = Position of trailing arm at extreme shock.Note:
10,000 lb. axle has same start angle as 8,000 lb.
22.5° ABOVE
10° ABOVE
22.5° DOWN
45° DOWN
35° DOWN
10° DOWN
0° LEVEL
AXLESMOUNTING KITS AND
DIMENSIONS
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2,000 LB.Ideal for BOAT, CAMPING, UTILITY, SNOWMOBILE and
MOTORCYCLE TrailersThis may be the lightest axle manufactured by
Rockwell American, but we have built it to the same high quality
standards as our larger axles. This axle can be configured for a
capacity of 1,000 lbs. to 2,000 lbs. and is commonly used in the
boat, camping, utility and snowmobile trailer industries.
Available in single, tandemor triple axle assemblies.
3,500 LB.Ideal for HORSE, UTILITY, COMMERCIAL, RV and BOAT
TrailersThis is our most popular axle because it is so flexible. An
almost infinite number of configurations make the Rockwell American
3,500 lb. axle the choice for a wide variety of applications, such
as horse, utility, commercial, RV and boat trailers.
Available in single, tandem or triple axle assemblies in either
a straight or drop spindle version.
AXLE TUBE
SPINDLES
HUBS
BRAKES
SPRINGS
2,000 LB. 3,500 LB.
• Standard 1 3/4” high strength round tubing
• BT16 SpindleOptions:• Brake flange located on shoulder for
maximum
braking performance• Posi-Lube™ spindle
• Cast iron hubs and brake drumsAvailable bolt patterns:• 4 on
4.00”• 5 on 4.50”• 5 on 4.50” Wide flanged hub to fit wheels 13”
and over• Wheel mounting studs
• Available with or without Braking Capabilities• Electric 7”x 1
1/2”• Hydraulic 7” x 1 3/4”• Disc 8”
• Double-eye and slipper versions• 1 3/4” wide• Available in
various lengths, capacities and
configurations• Can be ordered complete with u-bolt kit and
hanger
to meet your specific axle requirements
• Standard 2 3/8” high strength round tubing
• #84 SpindleOptions:• Straight or 4” drop forged version• Brake
flange located on shoulder for maximum
braking performance• Posi-Lube™ spindle
• Cast iron hubs and brake drumsAvailable bolt patterns:• 5 on
4.50”• 5 on 4.75”• 5 on 5.00”• 5 on 5.50”• 6 on 5.50”• Hubs and
Drums standardized w/wheel mounting studs
• Available with or without Braking Capabilities• Electric or
Hydraulic 10” x 2 1/4”• Disc 8”• Disc 10”
• Double-eye and slipper versions• 1 3/4” or 2” wide• Available
in various lengths, capacities and
configurations• Can be ordered complete with u-bolt kit and
hanger
to meet your specific axle requirements
AXLES2,000 LB.3,500 LB.
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Ideal for LIVESTOCK, INDUSTRIAL, UTILITYand TRAVEL
TrailersRockwell’s 5,200 lb. axles provide the strength and
durability required for all of your general duty applications, and
our 6,000 lb. axle provides added capacity for those heavier duty
applications.
The 5,200 lb., and 6,000 lb., are available in single, tandem or
triple axle assemblies in either a straight or drop spindle
version. Every axle is available with or without brakes.
5,200 LB. 6,000 LB.
*Posi-Lube™ Spindle option keeps inner and outer bearings
protected from water entry, corrosion and wear.
• Rockwell American offers a complete line of wheels or mounted
tire and wheel assemblies for use on all of our axles. Our wheel
line offers the standard OEM steel to the decorative white spoke,
galvanized spoke and chrome wheels.
AXLETUBE
HUBS
SPINDLES
BRAKES
SPRINGS
WHEELS
• Available in 3” high strength wall round tubing
• Cast iron hubs and brake drums• Available in 6 on 5.50” bolt
pattern• Wheel mounting studs
• #42 Spindle • Straight or 4” drop forged version • Brake
flange located on shoulder for maximum braking performance •
Industry standard inner bearing journal dimension of 1 3/4” and
outer bearing
journal dimension of 1 1/4” • *Posi-Lube™ spindle available and
oil bath on the 8 bolt Auto adjust Electric or Hydraulic 12”x 2”,
12” Disc
• Double-eye and slipper versions• 1 3/4” or 2” wide• Available
in various lengths, capacities and configurations• Can be ordered
complete with u-bolt kit and hangers to meet your specific
axle requirements
• Available in 3” high strength round wall tubing
• Cast iron hubs and brake drums• Available in 6 on 5.50” or 8
on 6.50”
bolt pattern• Wheel mounting studs
AXLES5,200 LB.6,000 LB.
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Ideal for HORSE, LIVESTOCK, UTILITY and AGRICULTURAL
TrailersDesigned and manufactured with extra strength and
durability for a wide variety of applications.
7,000 LB. 8,000 LB.
*Posi-Lube™ Spindle option keeps inner and outer bearings
protected from water entry, corrosion and wear.
• Rockwell American offers a complete line of wheels or mounted
tire and wheel assemblies for use on all of our axles. Our wheel
line offers the standard OEM steel to the decorative white spoke,
galvanized spoke and chrome wheels.
AXLETUBE
HUBS
SPINDLES
BRAKES
SPRINGS
WHEELS
• Available in 3” HD High Strength wall tubing
• Cast iron hubs and brake drums• Available in 8 on 6.50” bolt
pattern• Wheel mounting studs 1/2“ with
9/16” stud option
• #42 Spindle• Straight or 4” drop forged version• Brake flange
located on shoulder for maximum braking performance• Industry
standard inner bearing journal dimension of 1 3/4” and
outer bearing journal dimension of 1 1/4”• *Posi-Lube™ spindle
and Oil bath also available
• Electric or Hydraulic 12”x 2”
• Double-eye and slipper versions.• 1 3/4” or 2” wide• Available
in various lengths, capacities and configurations• Can be ordered
complete with u-bolt kit and hangers to meet your
specific axle requirements
• Available in 3.5” HD High Strength wall tubing
• Cast iron hubs and brake drums• Available in 8 on 6.50” bolt
pattern• Wheel mounting studs 9/16” with
5/8” stud option
• Electric or Hydraulic 12”x 3.5”
POSI-LUBE
GalvanizedDust Cap
Grease Flow
Spring LoadedDouble Lip Seal
TaperedRoller
Bearings
GreaseFitting
Rubber Plug
Continuous Bearing Protection
The most efficient and economical way to keep inner and outer
bearings protected from water entry, corrosion and wear.
AXLES7,000 LB.8,000 LB.
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MADE IN USA
Rockwell American Manufacturing &
Home Offices
FENDER MFG PLANT633 NW ParkwayAzle, TX 76020
MFG PLANT3804 Sydney RoadPlant City, FL 33567
CORPORATE HQ604 West MainAzle, TX 76020
Phone: (800) 243-4883Fax: (800) 243-5549
[email protected]
SPRING MFG PLANT306 West Simonds Road
Seagoville, TX 75159
AXLE MFG PLANT1012 Industrial DriveRoyse City, TX 75189
Contact Your Local Rockwell American BranchFor More
Information
Or visit us online:
www.rockwellamerican.com
Birmingham, AL Ph: (800) 874-4292
Phoenix, Arizona Ph: (888) 999-8233
Fresno, California Ph: (800) 742-6203
Aurora, Colorado Ph: (800) 307-5944
Plant City, FL Ph: (800) 289-2953
Angola, IN Ph: (877) 730-3748
Freeport, Minnesota Ph: (888) 325-1485
Kansas City, Missouri Ph: (866) 724-9950
Wilsonville, Oregon Ph: (800) 914-9116
New Holland, PA Ph: (800) 497-0986
Florence, SC Ph: (800) 238-3903
Azle, Texas Ph: (800) 242-4882
Mount Pleasant, Texas Ph: (800) 635-1354
San Antonio, Texas Ph: (800) 854-8058
Rockwell American Branch Offices
184949
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MO.
IN.
PA.
MN.OR.
CA. CO.
AZ.
TX.
AL.SC.
FL.
