Oilfield drilling rig

Valves, Pumps and Hydraulic Components

852XBAKP-F6XS Hydraulic Power Take-Off

Parker Chelsea 852 Series heavy-duty, hydraulically shifted PowerShift PTO for 8-bolt transmission openings. This configuration combines pressure lubrication with an SAE C pump output for demanding oilfield and mobile hydraulic applications.

Series: Parker Chelsea 852Model: 852XBAKP-F6XSType: Hydraulic PowerShift PTO
Parker Chelsea 852XBAKP-F6XS hydraulic power take-off

Product Overview

Heavy-duty 8-bolt PowerShift PTO for hydraulic drive systems

The Chelsea 852 Series uses a cast-iron housing, a large clutch pack and heavy-duty output-shaft ball bearings. Pressure lubrication is standard, supporting long service life in high-load mobile equipment where the transmission drives a hydraulic pump or other auxiliary equipment.

8-boltStandard transmission mounting
678 N·m500 lb-ft intermittent torque
SAE C4-bolt flange and 1-1/4 in, 14-tooth shaft
40 kgApproximate series weight

Typical applications

Oilfield equipment, bulk transporters, fire and rescue vehicles, and other heavy-duty mobile hydraulic systems requiring reliable auxiliary power from the transmission.

Configuration control

The complete model code defines the mounting, gear ratio, input gear, lubrication, shift arrangement, assembly arrangement and output interface. Quote and replacement selection must use the full code—not only “852 Series.”

Compatibility confirmation

Before ordering, confirm the transmission make and model, 8-bolt aperture, mounting orientation, vehicle voltage, hydraulic control arrangement, pump interface, required output speed and duty cycle.

Verified Configuration

852XBAKP-F6XS Model Code

The Russian product page spells the model with Cyrillic lookalike letters. The manufacturer-format Latin code is 852XBAKP-F6XS.

852
Basic model

Chelsea 852 Series

X
Mounting option

Standard mount

B
Gear ratio code

18/32

AK
Input gear

AK designator

P
Lubrication

Pressure lubrication

F
Shift option

No valve supplied

6
Assembly arrangement

Left: gear rear, shaft rear, bulge down; right: gear rear, shaft rear, bulge up

XS
Output option

SAE C 4-bolt flange; SAE C 1-1/4 in–14T shaft

Input cluster gear5-P-29632-tooth spur gear
Ratio gear18 teethB ratio configuration
Output / spider gear2-P-26532 teeth
Assembly reference328115X852*BAK application

852 Series Ratings

Performance and Construction

Series ratings are application limits for selection; final suitability depends on transmission speed, duty cycle and driven equipment.

Intermittent torque500 lb-ft678 N·m
Power at 500 rpm48 hp36 kW
Power at 1,000 rpm95 hp71 kW
Approximate weight88 lb40 kg
Shift typePowerShiftHydraulic
HousingCast ironHeavy-duty ball bearings

Technical reference: Parker Chelsea PTO Applications Catalog, 852 Series product literature and 852 Series parts list.

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