Parts: 1.608.834.1292durst@pjpower.com      
  Service: 1.800.341.4334 | service@pjpower.com      
  Applications 1.608.834.4791 | engineering@pjpower.com      
Durst Pump Drives 

Durst Modular Pump Drives

 
Durst pump drives run cooler, last longer and are quick and easy to service. Durst's patented pump pad design keeps oil constantly flowing through the bearing and provides for wet spline operation, even at startup. All Durst pump drives incorporate class 10 spur gears that run on heavy-duty ball bearings. They also feature an internal spline, which, with a spline adaptor, are compatible with any SAE pump shaft and offer quieter operation.

 

  

 


 

 

 
Features
  • Patented Modular Design
  • Patented Spline lubrication feature built into cast iron housings
  • AGMA Class 10 Gears for quieter operation
  • One-piece Gear and Shaft (solid-on-shaft) Design
  • Large Ball Bearings and SOS Gears simplify assembly and service
  • All Viton Seals and O-rings
  • Drop-in Replacement for competitors' drives
  • Fewer Parts
  • Reduced Lead Time
Applications
  • Construction
  • Agricultural
  • Offshore Oil
  • Forestry
  • Marine Decking
  • Material Handling
  • Railway Maintenance
Modular Design
Patented Design

Durst's Modular Designs are built tough to perform reliably in all operating environments.
Durst's patented pump pad design keeps oil constantly flowing through the bearing and provides for wet spline operation, even at startup.

Product Details

Pump Pads

Durst pump pads do not contain bearing cups. The advantage of this approach is that pump pads can be removed without disrupting the internal workings and alignment of the bearings and gears inside the gearbox.



 
 
Drive Plates
 
Durst pump drives now use a four-disk drive plate. By using four thin disks, the drive plate becomes slightly wider and increases the rating. Thin disks are much more flexible. When put together, multiple disks absorb more engine vibrations than a single thick disk. The drive plate is no longer captured on the input shaft; instead, it is able to automatically adjust if any engine flywheel misalignment occurs, resulting in smoother operation and longer gearbox life.
 
Splines
 
Durst pump drives have a 29T-12/24 internal spline on the gears, allowing a spline adapter to be used on any SAE pump shaft. Since the pump shaft mating spline is not integral to the output gear, the mating pump shaft spline adapter can be replaced without the need to remove or replace the output gear. Plus the 29T-12/24 spline significantly reduces wear on both gears and spline adapters.
 
 
Oil Circulation
 
Durst pump drives feature special oil port locations and oil directing ribs that cause the oil to flow into the pump pad area, lubricating the spline adapters and bearings without the need for external pumps. Oil flows into the pump pad area, and then our patented cast-in recesses causes the oil to flow across the spline for wet spline operation.
 
Input Shaft

The Durst pump drive input shaft engages the input gear through a 29T-12/24 spline. The input shaft is retained within the gearbox and allows the drive plate or torsional coupling hub to ride free on the input shaft, reducing misalignment stresses from the engine flywheel and the gearbox. It can be removed or replaced without disturbing the internal workings of the gearbox.
 

 
Heavy Duty Ball Bearings
 
The heavy-duty ball bearings placed directly in the housing halves don’t require shimming, which drastically simplifies assembly. Any adapter can be easily attached without disturbing the gears or bearings in the gearbox. The gearbox can easily be split for servicing without removing the adapters.

 

SINGLE PUMP DRIVE (DIRECT)
MODEL
HP @
2500 RPM
MAX TORQUE
(FT-LB)
INPUT
STYLE
FLYWHEEL HSG. STYLE
RATIO INC.
OR DEC.
PUMP
ADAPTERS
PUMP CENTER
DISTANCE
CHARTED DWGS
FLYER
CLUTCH DRIVEN
DRIVE PLATE
IND. INPUT
Zero Offset Direct Drive
595
1,250
P
2,3,4,5,6
N/A (direct)
A,B,C,D,E
N/A
N/A
N/A
1751D
595
1,250
P
1,2,3,4,5
N/A (direct)
A,B,C,D,E
N/A
N/A
N/A
 
Durst Pump DriveSINGLE PUMP DRIVE (GEARED)
MODEL
HP @ 2500 RPM
MAX TORQUE (FT-LB)
INPUT STYLE
FLYWHEEL HSG. STYLE
RATIO INC. OR DEC.
PUMP ADAPTERS
PUMP CENTER DISTANCE
CHARTED DWGS
FLYER
CLUTCH DRIVEN
DRIVE PLATE
IND. INPUT
1PD06
495
1,040
P,C,S
0,1,2,3,4
1:1, 1.06, 1.18, 1.25, 1.32, 1.40, 1.48, 1.57, 1.67
A,B,C,D,E,F
6.00
 
1PD09
815
1,710
P,C,S
0,1,2,3,4
1:1, 1.12, 1.20, 1.30, 1.40, 1.70, 2.00
A,B,C,D,E,F
9.00

Durst Pump DriveTHREE PUMP DRIVE
MODEL HP @ 2500 RPM MAX TORQUE (FT-LB) INPUT STYLE FLYWHEEL HSG. STYLE RATIO INC. OR DEC. PUMP ADAPTERS PUMP CENTER DISTANCE CHARTED DWGS FLYER
CLUTCH DRIVEN DRIVE PLATE IND. INPUT
3PD06

495

1,040

P,C,S

0,1,2,3,4

1:1, 1.17, 1.29, 1.36, 1.52 INC, 1.67 INC

A,B,C,D

8.49 x 12.38

 

3PD08

725

1,525

P,C,S

0,1,2,3,4

1:1, 1.13, 1.23, 1.34, 1.40, 1.53 INC

A,B,C,D,E,F

13.29 x 12.00

 

3PD10

950

1,995

P,C,S

0,1,2,3,4

1:1, 1.21, 1.29, 1.33, 1.38

A,B,C,D,E,F

15.91 x 18.00


Durst Pump DriveFOUR PUMP DRIVE
MODEL
HP @ 2500 RPM
MAX TORQUE (FT-LB)
INPUT STYLE
FLYWHEEL HSG. STYLE
RATIO INC. OR DEC.
PUMP ADAPTERS
PUMP CENTER DISTANCE
CHARTED DWGS
FLYER
CLUTCH DRIVEN
DRIVE PLATE
IND. INPUT
4PD08
725
1,525
P,C,S
0,1,2,3,4
1:1, 1.13, 1.23, 1.34, 1.40, 1.53 INC
A,B,C,D,E,F
11.08 x 11.54
 
4PD09
815
1,710
P,C,S
0,1,2,3,4
1:1, 1.12, 1.20, 1.30, 1.40, 1.70 INC
A,B,C,D,E,F
12.18 x 13.25
 
4PD11
1,025
2,150
P,C,S
0,1,2,3,4
1:1, 1.16, 1.31, 1.39, 1.57 INC


Durst Pump DriveINLINE FOUR PUMP DRIVE
MODEL
HP @ 2500 RPM
MAX TORQUE (FT-LB)
INPUT STYLE
FLYWHEEL HSG. STYLE
RATIO INC. OR DEC.
PUMP ADAPTERS
PUMP CENTER DISTANCE
CHARTED DWGS
FLYER
CLUTCH DRIVEN
DRIVE PLATE
IND. INPUT
4PD10L
950
1,995
S
N/A
1:1, 1.14, 1.21, 1.29, 1.38
A,B,C,D,E,F
21.00
N/A
N/A
N/A

SIX PUMP DRIVE
MODEL HP @ 2500 RPM MAX TORQUE (FT-LB) INPUT STYLE FLYWHEEL HSG. STYLE RATIO INC. OR DEC. PUMP ADAPTERS PUMP CENTER DISTANCE CHARTED DWGS FLYER
CLUTCH DRIVEN DRIVE PLATE IND. INPUT
806

600

1,260

P,C,S

1,2 or 3

1.43 INC, 1.68 INC, Dual Ratios (1.31 INC, 1.68 INC)

A,B,C,D or E

8.00 to 18.75

N/A

N/A

N/A

Application Data Form (pdf)            Service Manual (pdf)



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