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Email:info@pr-drives.com
Gearbox
Introduction
Main parameters
| Series | ZJ604 |
High load-bearing capacity
Heavy-load design: Designed for the frequent heavy-load conditions of the crane, it can withstand large impact loads and torque.
High gear strength: Made of high-quality alloy steel gears, processed by carburizing and quenching, the tooth surface has high hardness and strong wear resistance.
High transmission efficiency
Optimized gear meshing: The gear pair is precision-machined, and the transmission efficiency can reach more than 95%, reducing energy loss.
Low heat design: By optimizing the lubrication and heat dissipation structure, the temperature rise during operation is reduced.
Smooth operation and low noise
High-precision gear processing: Reduce tooth surface errors, vibration and noise (usually ≤75dB).
Dynamic balance test: Key components are dynamically balanced to ensure stability during high-speed operation.
Reliability and long life
Good sealing performance: Multiple seals (such as oil seals and labyrinth seals) are used to prevent lubricating oil leakage and impurity intrusion.
Anti-fatigue design: The life of bearings and gears has been strictly calculated to adapt to frequent start-stop and variable load conditions.

The Crane Gearbox are usually used in conjunction with overhead cranes, gantry cranes, jib cranes and electric hoists, and are widely used in the following scenarios:
Industrial crane, Engineering crane, civil crane, Construction crane.
parameter
| Parameter item | Parameter value/description |
| Applicable institutions | Lifting mechanism |
| Rated output torque | 45,000 |
| Rated input power | 45 |
| Rated input speed | 1500 |
| Transmission ratio | 40 |
| Job level | M6 |
| Service factor | 1.25 |
| Center distance | 315 |
| Installation form | Flange type (I type) |
| Input shaft form | Solid shaft with flat key |
| Output shaft form | Shrink disk hollow shaft |
| Gear type | Helical gear |
| Gear accuracy grade | ISO class 6 |
| Lubrication method | splash lubrication |
| Lubricating oil type | L-CKD 320 |
| Lubricating oil quantity | 42 |
| Working environment temperature | -20°C to +45°C |
| Protection class (IP) | IP55 |
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