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Gearbox
Introduction
Main parameters
| Series | 520/660-700/715 |
The crane reducer is the core transmission component in the lifting machinery. It is mainly used to reduce the speed of the motor and increase the output torque, so as to drive the lifting, running and slewing mechanism to run smoothly. Its working characteristics are strong load-bearing capacity, high transmission efficiency, and can adapt to frequent start-stop and impact loads. Common types of reducers include gear reducers, worm gear reducers and planetary reducers. Choose the appropriate model according to the specific needs of the crane.
Reducers are usually composed of housings, gears, bearings and sealing devices, and achieve deceleration and torque increase through multi-stage gear meshing. The high-speed rotation of the motor is transmitted to the reducer through the input shaft. After the gear pair is gradually reduced, the required low-speed and high-torque power is output by the output shaft. To ensure reliability, the reducer needs to have a good lubrication system and use high-strength materials to withstand heavy loads and impacts.
Crane reducers are widely used in ports, construction, metallurgy and other fields, and their performance directly affects the safety and efficiency of the equipment. Daily maintenance requires regular inspection of the lubricating oil status, gear wear and sealing to avoid failures caused by poor lubrication or foreign matter intrusion. High-quality reducers can significantly extend the service life of the crane and reduce maintenance costs.

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
The crane hooks, crane wheels, crane pulleys,crane drums, crane couplings, crane electricalaccessories,crane slings and other accessoriesproduced by Weihua Crane are widely used inmajor brands and various types of IndustrialCrane products.
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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