Core Features
Power Transmission: Transmits the gearbox output torque to the final drive, driving the tracks and adapting to the power requirements of bulldozing, steering, and other working conditions.
Angle Compensation: The universal joint can accommodate installation angle deviations between the gearbox and the final drive, allowing a maximum 15° of sway to avoid interference.
Axial Compensation: The sliding spline allows for axial extension and retraction (compensation amount 15-20 mm), absorbing axial displacement caused by frame deformation and vibration.
Vibration Damping: The universal joint needle roller bearing and dust cover absorb transmission vibration, reduce noise, and protect transmission components.
Protective Sealing: The dust cover blocks dust/mud, preventing wear on the universal joint and spline, and extending component life.
Positioning Connection: The flange and spline precisely fit to ensure slip-free power transmission and reliable installation positioning.
Product Superiority
Original factory precision fit: The shaft tube length, spline specifications, and universal joint fork angle are perfectly matched to the D65/D85 transmission system, allowing for direct replacement without any repairs.
High torque and fatigue resistance: The 42CrMo shaft tube is rolled, welded, and dynamically balanced (residual imbalance ≤5 g・cm), with a rated torque ≥8500 N・m and a fatigue life ≥4000 hours.
High wear resistance of the universal joint: The cross shaft is hardened, and the needle roller bearings are pre-lubricated and sealed, with a clearance ≤0.05 mm, resisting impact and vibration and reducing abnormal noise.
Self-lubricating spline: The sliding spline is coated with molybdenum-based grease, resulting in low expansion resistance, low wear rate, and clearance controlled at 0.02-0.1 mm.
Integrated maintenance: Pre-installed universal joints, splines, dust covers, etc., requiring only 1-2 hours for on-site installation, reducing maintenance time.
Installation and Maintenance Points
Before installation, verify the markings and install according to the original factory positioning to avoid vibration caused by incorrect universal joint fork phase.
Check the spline and universal joint clearance, apply grease, and ensure smooth extension and rotation.
Tighten the flange bolts to the specified torque to prevent loosening; after installation, check the radial runout of the drive shaft to ≤0.75 mm.
Check the dust cover and lubrication every 500 hours; replace/replenish immediately if damaged or insufficient lubrication is found.
Avoid heavy-load starts and frequent sudden stops to reduce drive shaft impact and extend service life.
Fit scenarios and value
Suitable for: Heavy-duty, dusty, and high-vibration working conditions such as mine stripping, large-scale earthmoving, and wetland operations.
Core Value: Reduces vibration and failure risks in the transmission system, minimizes downtime, and improves the overall power transmission efficiency and reliability.
