TH48-E70 Oilfield Transmission
THE RUNDOWN
Transmission Specifications
| Gross Peak Input Torque | 4422.0ft-lb |
| Rated Input Speed | 2100.0r/min |
| Maximum Turbine Torque | 7442.0ft-lb |
| Gear Type | Straight spur planetary |
| Gears | 7F/0R |
| 1F Gear Ratio | 6.16 |
| 2F Gear Ratio | 4.52 |
| 3F Gear Ratio | 3.33 |
| 4F Gear Ratio | 2.47 |
| 5F Gear Ratio | 1.82 |
| 6F Gear Ratio | 1.36 |
| 7F Gear Ratio | 1.00 |
Dimensions
| Width | 34.1in |
| Height | 43.0in |
| Weight | 3735.0lb |
| Length | 65.2in |
Standard Equipment
Cat Engines for Optimized Power Train
- Cat C27 ACERT
- Cat C32 ACERT
- Cummins QST30 (950-1500 bhp ratings)
Transmission Rotation
- Input rotation — counterclockwise
- Output rotation — counterclockwise(as viewed from rear)
Torque Converter
- Integral torque converter
- Series
- Stall torque ratio
Clutches
- Clutches — electro-hydraulic fully modulated, oil cooled, multidisc
- Clutch modulation control — Cat Electronic Clutch Pressure Control (ECPC)
Installation Connections
- 2 oil cooler lines
- 1 electrical connector
- 1 pump
Oil System
- Cat Transmission/Drive Train Oil-4 (TDTO)
- Sump oil temperatures
- Hydraulic fill capacity — Approx. 114 L (30 gal), subject to cooler size, lines, and installation.
- Filter Type — 6 micron synthetic, cartridge remote mount
Mountings
- Input connection (flywheel) — SAE #0
- Output connections (yoke) — GWB 390.60/GWB 390.65
- Structural application subject to Caterpillar approval
Control System
- Electronic Control Unit (ECU)
- Electronic data link, SAE J1939
- Electrical system 24V
Power Take-Off Drives
- Location
- Mounting type: SAE 8 bolt (J704)
- Rated power
