Direct drive in a washing machine: what is it, why is it needed, pros and cons

We can say about direct drive in a washing machine that it is a modern device in which the motor and drum are connected without a belt drive. They contact through a clutch, which makes the mechanism more durable and reliable. However, it also has its disadvantages associated with expensive repairs. More details about the features of direct drive and its real advantages are described in this article.

What does direct drive mean?

All washing machines are equipped with an electric motor. It is connected to the drum, and different models have their own type of integration. If the drum and motor are in contact without a belt drive, it is a direct drive washing machine.

In it, the main elements are connected using a special coupling, which performs 2 functions at once:

• gearbox;
• driving mechanism.

Direct drive in a washing machine is a more advanced technology compared to belt drive. This mechanism is also reflected in the characteristics of the engine itself. As a rule, modern models use a three-phase brushless type mechanism. It consists of a rotor and stator, as well as inductors (36 units).

The direct drive washing machine works based on the following device. The rotor is attached to the shaft of the washing drum.Moreover, in this case, the drum shaft and the rotor shaft coincide. The engine is controlled by signals coming from the electronics.

Pros and cons of direct drive

Now it’s clear what direct drive means in a washing machine. This is the name for a connection without a belt, when both elements are in contact through a coupling. This method of fastening has several advantages:

1. There are fewer parts in the connection structure, so the mechanism is durable.
2. Direct drive washing machine models typically last at least 10 years. This is the warranty period provided for engines.
3. The design is more stable, so the drum works in a balanced manner. This increases its wear resistance, as well as the quality of washing.
4. Vibration is almost imperceptible or at least significantly lower than in models with outdated transmission. Thanks to this, a washing machine without a belt drive runs quieter.

But it was not without its drawbacks either. For example, direct transmission is quite sensitive to changes in electrical voltage. Because of this, the risk of breakdowns increases. They can occur almost as often as with conventional models.

Modern devices are controlled by electronics, which are also sensitive to excessively humid air. In this regard, a direct drive washing machine is also more vulnerable. There is also a drawback associated with severe wear of the bearings. The reason is that the mechanism does not have a pulley, which increases the load. Therefore, parts will have to be changed more often.

Finally, there is another disadvantage associated with emergency situations - breakthroughs and leaks. In a direct drive machine, the drum and the motor axis are located on the same shaft. This can damage the seal, causing water to immediately enter the engine.This is a fairly rare but dangerous situation.

Drive repair features

As you can see, the advantages of direct drive in a washing machine are obvious. Due to the reliability of the mechanism, some manufacturers guarantee uninterrupted operation of the engine for a long period of up to 10 years.

But on the other hand, such a proposal has its pitfalls. For example, oil seal leakage may not be included in the list of warranty cases. Therefore, before purchasing, you need to carefully study the documentation.

It should also be understood that in the event of a malfunction, repairing a direct drive model will cost much more than conventional devices. This is due to 2 main reasons:

• the mechanism contains many electronic microcircuits;
• equipment is more resistant to voltage surges;
• The design of the motor mechanism is more complex and consists of more expensive spare parts.

From this review it is clear that direct drive washing machines have pros and cons. Overall, this is truly a more profitable and technically advanced device. But even if the manufacturer provides a long-term warranty, you first need to familiarize yourself with the list of insured events. Then direct drive is truly the best option.