PRODUCT FAMILY
©2009 AxleTech International

PLANETARY RIGID AXLES
PRA352 SERIES

PRODUCT SUMMARY

AxleTech International planetary rigid axles are tough and versatile for good reasons-your rough workload.
These heavy-duty axles feature a wide selection of gear ratios, load capacities, brakes and vehicle mountings
to best serve your demanding, routine tasks.

The PRA352 series rigid drive axles support vocations that require 11,000-33,000 lbs.(5,000-15,000 Kgs.)load
capacities. Typical applications include lift trucks, loaders, reach trucks, compactors, backhoe loaders,
and excavators.

A central steel housing contains all mechanical components (spiral bevel design main carrier gearing differential, planetary reduction gears, and wet disc brakes)
which in turn allow greater clearance at the wheel ends and more choice of axle lengths.

The oil immersed 9" (229mm) diameter wet disc brakes are insulated from external contaminants and
yield longer life and less downtime and maintenance. The brakes are available in hydraulic apply/spring
release or spring apply/hydraulically release configurations. Optional wet disc brake forced cooling
ports are available for the most severe duty vocations. Multiple wet disc brake plate configurations are available that will allow the brake to be "customized" to the your specific OEM vehicle vocational requirements.

Options for the PRA352 include: cast integral pad, mast type mounting, "high pin" trunnion mounting or
less cast mounting pads, 4-Bolt "D" hydraulic -motor input, limited slip differential and yoke/ flange
options. The limited slip differential has a theoretical 2.0:1.0 bias ratio. Planetary gear pinion options are
vocation dependant.

AxleTech planetary rigid axles are tough, dependable and thoroughly proven under the most severe conditions.

AxleTech International is the former Rockwell® Off Highway and European Specialty Products Group.
Additional Documentation
FEATURES
BENEFITS
Spiral bevel gearing standard. Provides greater OEM flexibility in ration options and torque requirements.
Precision forged differential gears standard. Higher strength gears than “Cut” differential gears.
Outboard mounted face seals. Provide greater protection in adverse environment.
9” (229mm) axle shaft speed wet disc brakes. Maximum life, minimum maintenance. Sealed environment protects
against contaminants for optimal brake performance in severe conditions.
Wet brake piston return springs standard. Retracts piston from friction discs reducing drag.
High capacity taper roller bearings. Used throughout for heavy load carrying capacity.
Modular cast housing arms. Flexible configurations to meet OEM requirements.
Available differentials include: Standard, No Spin, and Limited Slip. Provides flexibility to meet OEM differential requirements.
Planetary gearing (supported on a double row of needle bearings). Deep gear reduction with optional 3 or 4 planetary pinion
configurations to tailor to specific applications.
Optional integral park brake in axle housing with
mechanical release.		 Compact installation on vehicle.
Optional Axle Housing Mountings available. Permits greater OEM flexibility in design. Housing pad, Mast Mount,
Top Pin, Less Pads designs available.
Optional 4-bolt S.A.E. “D” Hydraulic Motor Mount. Provides flexibility in OEM vehicle installation.
Optional Metric or S.A.E. thread wheel studs. Provides OEM wheel rim mounting flexibility.
Wet disc brake options include service, Hydraulic Apply/Spring
Release or Spring Apply/Hydraulic Release.		 Permits OEM to select brake options for vocation required.

TYPICAL AXLE WEIGHT:
Range=793-1,040 Lbs. (360-472Kgs.)
PRA352 with 61.1" (1,552.6 mm) Hub Flange to Flange and 2 plate hydraulic apply/spring release brake=870lbs. (395Kgs)
PRA352 with 43.7" (1,110 mm) Hub Flange to Flange and 2 plate hydraulic apply/spring release brake=811lbs. (368Kgs)
PRA352 with 81.0" (2,057mm)Hub Flange to Flange and 4 plate spring
apply/hydraulic release park brake=1,367 Lbs. (620Kgs)

Example:
Oil capacity Range for axle assembly=30 42.6 pints (14.3-20.3 Liters)
PRA352 with 61.1" (1,552.6mm) Hub Flange to Flange=30 pints (14.3 Liters)
PRA352 with 81.0" (2,057.0mm) Hub Flange to Flange=42.6 pints (20.3 Liters)

A) Axle Mounting Centers
B) Hub Flange to Flange
C) Carrier Standout:
Axle with 6C input yoke =12.62" (320.6mm)
Axle with adapter-motor mounting =15.16" (385.1mm)

(1)
AXLE CAPACITY Pounds (kg) 		AVAILABLE DIFFERENTIALS DIFFERENTIAL RING
GEAR DIAMETER AND FACE WIDTH Inches (mm)		 AVAILABLE
OVERALL
RATIOS
Lift Truck 33,000 (15,000)
Loader/Backhoe 11,000 (5,000)
Loader 15,000 (6,800)
Vibratory Roller 11,000 (5,000)
Standard Limited Slip,
or No Spin (2)
PRA352 Carrier Fast Ratios
9.5" (241.3)
1.7" (43.2)
Slow Ratios
11.0” (279.4)
1.7” (43.2)
13.86 -32.57:1.0

(A) AXLE MOUNTING CENTERS Inches (mm) (B)
HUB FLANGE
TO FLANGE Inches (mm)		 TIRE SIZE
Inches (mm)		 BRAKES
Inches (mm)		 INPUT BOX
RATIO
24.8" (628.7)

24.8" (628.7)

36.2" (920.3)

39.0" (990.7)
43.7" (1,110)

46.5" (1,180)

61.1" (1,552.6)

63.9" (1,622.6)
8.25"x15"
(210x381)
20" Rail
(508)
13.00"x24"
(330x610)
28"x12"x22"
(711x305x559)
28"x14"x22"
(711x356x559)
9.0" x W2M
(229)
9.0" x W2H
(229)
6.0:1.0
*Other Dimensions Available
(1) Approval required on all applications.
(2) No Spin is a registered trademark of Tractech, Inc.