WPDKZ Series Worm Gearboxes

WPDKZ Series Worm Gearboxes
WPDKZ series single-stage worm gearbox has smooth transmission, low vibration, impact, noise, large reduction ratio, wide versatility. Used with various mechanical equipment. Single-stage transmission can obtain a larger transmission ratio and compact structure. Most types of reducers have better self-locking properties. For mechanical equipment with braking requirements, the braking device can be omitted. The WPDKZ series worm gearbox should have sufficient rigidity to avoid deformation after loading, thereby affecting transmission quality and performance.

Product Specifications

Common Faults and Causes of Worm Gearboxes

To improve efficiency, WPDKZ Series Worm Gearboxes (worm gear reducers) generally use non-ferrous metals as worm gears, and worms use more rigid steel.
1. The reducer heats up and leaks oil. Due to the sliding friction transmission, more heat will be generated during operation, which will cause differences in thermal expansion between the parts of the reducer and the seal, thus forming gaps in each mating surface. The lubricating oil will become thinner due to the increase in temperature, which is easy to cause leakage. There are four main reasons for this situation.

First, the matching of materials is unreasonable; second, the quality of the meshing friction surface is poor; third, the selection of the amount of lubricating oil added is incorrect; fourth, the assembly quality and use environment are poor.

2. The worm gear is generally making of tin bronze, and the paired worm material is hardenning to HRC4555 with 45 steel. 40Cr hardened to HRC5055 and then ground to a roughness of Ra0.8μm by a worm grinder.

The reducer wears very slowly during regular operation; some reducers can work for more than ten years. If the wear rate is fast, it is necessary to consider whether the selection is correct, whether it is overloaded. And the material of the worm gear, the quality of assembly, or the use environment.

3. The transmission of small helical gear is worn. It generally occurs on vertically installed reducers, mainly related to the amount of lubricating oil added and the type of oil. When installed vertically, it is easy to cause insufficient lubricating oil. When the reducer is started, the gears are mechanically worn or damaged due to inadequate lubrication. When the reducer stops running, the transmission gear oil between the motor and the reducer is lost, and the gears cannot be properly lubricated and protected.
4. The worm bearing is damaged. When a failure occurs, even if the gearbox is well sealed, it is often found that the gear oil in the gearbox is emulsified, and the bearings are rusted, corroded, and damaged. This is because the condensed water generated after the gear oil temperature rises and cools after the reducer runs for some time is mixed with water. Of course, it is also closely related to the bearing quality and assembly process.

Packing and Transportation

• Packaging: To ensure the integrity of product appearance, we will choose cartons, wooden pallets, and wooden pallets according to customer needs.

• Delivery time: Each gearbox is manufactured and tested by strict and fixed procedures to ensure the correct quality before leaving the factory and delivering on time.

• Transportation mode: We will choose the most suitable mode of transportation for our customers according to the weight and size of the goods. We can also choose the mode of transportation according to the needs of our customers.

• Receiving and after-sales service: After receiving the goods, please check whether they are in good condition. We will provide customers with perfect after-sales service.