Pump Drives

Transfer Cases

DURST transfer cases are heavy-duty and engineered to meet the rugged operational demands of a wide range of mobile off-highway applications. Targeted toward mobile construction, agricultural, forestry and mining equipment, they excel at transferring between two-wheel and four-wheel drive and delivering mechanical power to auxiliary equipment in high and low ranges.

Features

Simplified Mounting — Symmetrical hole pattern provided on the sides of the gearbox perpendicular to the input/output positions.

Fewer Parts — Elimination of parts, such as covers, shims, screws, and sealing compound, provides a design simple to build and service. Potential leak paths have also been removed.

  • Cast Iron and Aluminum Housings
  • Optional Shifting (pneumatic, hydraulic, mechanical)
  • Optional Disconnects
  • Optional Differentials
  • Lube systems available
  • Optional Inputs (mechanical, hydraulics)
  • Yokes & Flanges (optional)
  • Gearing (Helical, Spur)
  • Tapered Roller Bearings (Ball Bearings)

Benefits

High Rating — Gear geometry (AGMA class 10) and large cylindrical bearing design result in high horsepower and torque rating.

Simpler to Service — Does not require pressing shafts through housings and gears in order to assemble. Cylindrical bearings do not require special shimming in order to set end play. Input and output options can be easily changed without disturbing bearings.

Modular Design — Maximizes the use of common components with the Durst new- generation pump drive line to reduce the number of parts to inventory and provide best-in-class delivery.

Availability — Commonality of parts and shorter assembly time result in quicker turnaround.

Competitive Pricing — Result of fewer parts and less assembly time due to the modular design.

Accessories — Broad offering of options available for specific application needs.

Applications

  • Construction
  • Railway Maintenance
  • Forestry
  • Agricultural
  • Oil Field
  • Specialty Trucks

OFF ROAD DUTY CYCLE RATINGS - 75% Low Range-25% High Range Continuous (5000 HRS)

MODEL RATIOS PEAK INPUT TORQUE CENTER DISTANCE INPUT TORQUE (FT-LBS) INPUT HORSEPOWER FLYER
@1800 RPM @2500 RPM @3000 RPM @1800 RPM @2500 RPM @3000 RPM
11D, Two Speed 1.611/4.466 907.6 11.15 340 305 290 117 145 166
2.51/6.83 661.8 330 300 280 113 143 160


ON AND OFF ROAD DUTY CYCLE RATINGS - 50% Low Range-50% High Range Continuous (5000 HRS)

MODEL RATIOS PEAK INPUT TORQUE CENTER DISTANCE INPUT TORQUE (FT-LBS) INPUT HORSEPOWER FLYER
@1800 RPM @2500 RPM @3000 RPM @1800 RPM @2500 RPM @3000 RPM
11D, Two Speed 1.611/4.466 907.6 11.15 385 345 330 132 164 188
2.51/6.83 661.8 370 335 315 127 159 180


ON ROAD DUTY CYCLE RATINGS - 25% Low Range-75% High Range Continuous (5000 HRS)

MODEL RATIOS PEAK INPUT TORQUE CENTER DISTANCE INPUT TORQUE (FT-LBS) INPUT HORSEPOWER FLYER
@1800 RPM @2500 RPM @3000 RPM @1800 RPM @2500 RPM @3000 RPM
11D, Two Speed 1.611/4.466 907.6 11.15 405 370 350 139 176 200
2.51/6.83 661.8 380 375 370 130 179 211




Single Speed Transfer Cases

T-Case Model Speeds Shafts Nominal Input Torque ft-lb Center Distance In. Ratios (No.) Disconnects Interaxle Differential Outputs Input Style
ML3 1 or 2 3 125 8.350 13.75-2.20(24) NO NO 1 or 2+ M,H
MM3 1 or 2 3 300 10.000 20.35-1.02(15) NO YES 50/50 1 or 2+ M, H
819 1 4 550 25.500 1.00 NO NO 1 E
MM5 1 3 600 10.000 6.63 YES NO 1 or 2+ M, H
MP3 1 or 2 3 685 11.080 5.23 NO NO 1 or 2+ M, H
651 1 or 2 3 700 11.086 5.197-1.667(4) NO NO 1 or 2+ M, H
337 1 3 1,140TH 1,750CH 16.000 1.00 YES NO 1, 2, 3+ M, H
237 1 2 1,290TH 1,920CH 8.000 1.00 YES NO 1, 2, 3+ M, H
813 1 3 1,400 11.080 2,967 NO NO 1 or 2+ M
808 1 2 1,750 10.9169 4.375-5.048 NO NO 1 E
815 1 3 1,900 18.607 4.49-6.62 NO NO 1 or 2+ E
817 1 3 1,900 16.250 6.33 NO NO 1 or 2+ M
816 816 1 5,250 8.100 1.00 YES NO 1 or 2+ M
807 1 or 2 3 6,000 12.402 0.74-2.47(5) YES YES 50/50 1 or 2+ M
810 1 2 8,600TH, 11,000CH 8.100 1.00 YES NO 1 or 2+ M
814 1 3 9,000 16.250 1.0 & 4.00 YES YES 50/50 70/30 1 or 2+ M
803 1 or 2 3 9,100 16.250 0.98-6.999(5) YES YES 50/50 70/30 1 or 2+ M
747 1 or 2 2 13,400 12,941 1.00, 2.00 YES YES 50/50 70/30 1 or 2+ M
Reversing Box
802 1 2 or3 8,000 In-Line 1.00 YES NO 1 M
818 1 2 or 3 630 8.100 1.45 NO NO 1 M
Power Divider
748 1 3 1,700 16.838 0.6 & 0.8 PTO Clutch NO 1 + PTO E


Two Speed Transfer Cases

T-Case Model Speeds Shafts Nominal Input Torque ft-lb Center Distance In. Ratios (No.) Disconnects Interaxle Differential Outputs Input Style
ML3 1 or 2 3 125 8.350 13.75-2.20(24) NO NO 1 or 2+ M,H
MM3 1 or 2 3 300 10.000 20.35-1.02(15) NO NO 1 or 2+ M, H
MP5 4 4 300 16.000 7.49, 4.14, 2.33, 1.28 NO NO 1 or 2+ m, H
MP3 1 or 2 3 685 11.080 6.23-1.63(4) NO NO 1 or 2+ M, H
651 1 or 2 3 700 11.086 5.197-1.667(4) NO NO 1 or 2+ M, H
807 1 or 2 3 4,500 12.402 .74-2.47(5) YES YES 50/50 1 or 2+ M
792 1 or 2 3 5,000 22.100 2.346, 1.025 NO YES 1 or 2+ M, H
758 2 3 6,500 16.202 1.0-2.88(4) YES NO 1 or 2+ M
794 2 3 9,100 12.670 1.0-2.016 YES NO 1 or 2+ M, H
803 1 or 2 3 9,200TH
13,000CH		 16.250 1.0-6.999(4) YES YES 50/50 70/30 1 or 2+ M
3658 2 3 10,000 8.100 0.442-4.06(11) YES NO 1 or 2+ M, H
814 1 or 2 3 10,000 16.250 1.0 & 2.0 YES YES 50/50 70/30 1 or 2+ M, H
655 1 or 2 4 12,000 25.900 1.00 YES YES 50/50 70/30 1 or 2+ M, H
747 1 or 2 2 13,400 12.941 5.197-1.0, 2.0 YES YES 50/50 70/30 1 or 2+ M
PR6029 1 or 2 2 14,300 10.094 1.0 & 2.25 YES NO 1 or 2+ M, H
Axle Drive
788 2 3 1,720 18.958 27.77-5.94(6) NO NO 1 M, H