Posted: 1 February 2025
Python Drive – Vibration-Free Marine Driveline System | Lancing Marine Python Drive – Vibration-Free Marine Driveline System
Dramatically Reduce Vibration and Driveline Stress
The Python Drive flexible coupling system is a complete solution for improving comfort, protecting your drivetrain, and simplifying marine engine installation. It isolates the propeller thrust from the engine and transmission, and eliminates vibration through the use of a constant velocity shaft and a hull-mounted thrust bearing unit.
Designed for smooth, quiet propulsion, Python Drive systems help reduce noise and stress in any marine powertrain, making them ideal for both new builds and refits.
The System
The Python Drive system includes three main components working together:
- Soft Engine Mounts (optional): Reduce vibration transfer from the engine to the hull.
- Constant Velocity (CV) Shaft: Transmits torque while allowing for movement in all directions, removing the need for precise engine alignment.
- Thrust Bearing Unit: Bolts to a load-bearing hull structure and absorbs all axial thrust from the propeller shaft, protecting the transmission.
Ideal for New Builds and Refits
Section view of Python Drive showing Shaft, Thrust Bearing, CV Joint and Gearbox Coupling
Model Range & Specifications
| Model | Shaft Torque | Prop Thrust
| Shaft Diameter | Example Application |
| P30-R | 294 Nm | 4.4 kN | 19 - 30 mm | 50 Hp / 3000rpm 2.5:1 |
| P60-B | 588 Nm | 5.7 | 1.25"
- 40 mm
| 70 Hp /
2600rpm 3.5:1
|
| P60-K | 588 Nm | 5.7 | 30 - 40
mm
| 70 Hp /
2600rpm 3.5:1
|
| P80-M | 785 Nm | 8.0 | 30 - 45
mm
| 105 Hp /
3000rpm 3:1
|
| P80-S | 785 Nm | 12.0 | 30 - 45
mm
| 130 Hp /
3400rpm 2:1
|
| P110-S | 1080 Nm | 12.0 | 35 - 45
mm
| 135 Hp /
2700rpm 3:1
|
| P110-T | 1080 Nm | 18.0
| 35 - 50
mm
| 180 Hp /
2400rpm 2:1
|
| P140-T | 1370 Nm | 18.0 | 40 - 55
mm
| 190 Hp /
3400rpm 2:1
|
| P200-T | 1960 Nm | 18.0 | 40 - 60
mm
| 240 Hp /
2300rpm 2.5:1
|
| P200-Q | 1960 Nm | 22.0 | 45 - 60
mm
| 250 Hp /
2800rpm 3:1
|
| P200-W | 1960 Nm | 30.0 | 50 - 60
mm
| 275 Hp /
2500rpm 2.5:1
|
| P501-Q | 4900 Nm | 22.0 | 50 - 60
mm
| 137 Hp /
3400rpm 2:1
|
| P501-W | 4900Nm | 30.0 | 50 - 80
mm
| 400 Hp /
2200rpm 3:1
|
| P501-L | 4900 Nm | 45.0 | 50 - 80
mm
| 500 Hp /
2200rpm 3:1
|
| P755-L | 7355 Nm | 45.0 | 70 - 80
mm
| 600 Hp /
2200rpm 3:1
|
| P1025=L | 9810 Nm | 45/0 | 70 - 80
mm
| 750 Hp /
2000rpm 3:1
|
| P1025-G | 9810 Nm | 60.0 | 70 - 100
mm
| 800 Hp /
1900rpm 3:1
|
| P1500-G | 14715 Nm | 60.0 | 80
- 100 mm
| 950
Hp / 1900rpm 3:1
|
For pricing please view our Price Book Page-64.
Python Drive Sizing & Selection
Choosing the correct Python Drive model depends on your shaft diameter, engine power, and installation space. To assist with model selection and driveline planning, we provide a downloadable sizing chart with torque ratings, thrust limits, and dimensional details.
Python Drive Sizing Schematic
⬇ Download Sizing Chart (Excel)
Python Drive is well suited to engine rooms where space is limited or alignment is difficult. It simplifies installation, removes the need for realignment over time, and reduces wear on transmission and shaft bearings.
Applications
- Motor yachts and pleasure craft: Enhances onboard comfort by reducing vibration and cabin noise, ideal for cruising and leisure environments.
- Workboats and fishing vessels: Improves driveline durability and reduces maintenance in demanding commercial conditions and variable loads.
- Pilot and patrol boats: Handles continuous operation and rapid throttle changes with stable alignment and thrust management.
- Riverboats and narrowboats: Provides quiet propulsion and easy integration in tight engine rooms and shallow-draft installations.
- Custom or OEM driveline configurations: Modular, space-efficient design allows flexible integration in bespoke and production marine propulsion systems.
Python-Drive Application Video
Contact & Support
To request a quote, confirm gearbox compatibility, or get installation advice, contact our technical team today.
Python Drive Kit Components & Spare Parts
Python Drive assembly kit – includes thrust bearing, CV shaft, mounts, hardware and alignment components
Each Python Drive system is supplied as a complete pre-engineered kit, including the constant velocity (CV) joint shaft, hull-mounted thrust bearing unit, fasteners, bushings, and installation hardware. The layout is designed for intuitive fitting and long-term durability, with modular components for easy maintenance or future servicing.
We also maintain extensive factory stock of Python Drive systems and spare parts, ensuring fast availability for both new installations and in-service support. Whether you need a complete unit, a replacement bearing, or individual components such as mounts or CV joints, we can supply them promptly to keep your vessel running smoothly.
Python Drive systems are supported with genuine replacement parts direct from the manufacturer, offering peace of mind for owners, boatbuilders, and commercial operators alike.
| Spare Part Assemblies and Components |
| Rubber block of thrust bearing | Boot kit (without bolt kit) |
| Complete mounting kit for thrust bearing unit | Boot kit (with bolt kit) |
| Hub | CV joint + circlip |
| Clamp coupling | CV Joint + end cover + boot kit + circlip + grease + ½ fastener kit |
| Hub + Clamp Assembly | Intermediate shaft (standard length) |
| Replacement bearing | Complete fastener kit for CV drive shaft |
| Bearing housing + bearing + circlip | Intermediate shaft (standard length) |
| Set of oil seals | Complete fastener kit for CV drive shaft |
| End cover for CV joint | Grease for one CV joint |
| Gasket for end cover/boot | Stud kit for adaptor flange (M10 or M12) |
| Separate rubber boot | Stud kit for adaptor flange (M16 or M20) |
Contact us at data@lancingmarine.com or visit our website for more information.