With so many motor types available, you probably want to know the 550 vs. 775 motor differences and similarities. Well, these motors have different shaft lengths and diameters besides differing in overall size and weight. The two units also contrast in operating voltage, torque, amperage, and power output.
Despite their numerous differences, the 550 and 775 motors share many similar features. For instance, they both have the same rated voltage. In addition, the motors boast identical applications.
So, which is better, a 550 or a 775 motor? This guide has all the answers to your queries regarding these two motors.
550 vs 775 Motor Comparison Chart
Below, we will look at the 550 vs. 775 motor specifications, so you can know what each unit offers.
| Specifications | 550 Motor | 775 Motor |
| Operating voltage | 6 – 14.4 volts | 6 – 36 volts |
| Rated voltage | 12 volts | 12 volts |
| Rated current | 0.8A – 1.4A | 0.5A – 1.2A |
| Speed | 8600 to 19300 rpm | 10000 to 20000 rpm |
| Horsepower | 200 watts | 80 to 300 watts |
| Shaft length and diameter | 7.62 mm and 3.2 mm | 14 to 17mm and 5 mm |
| Weight | 7.8 ounces | 12.3 ounces |
What Is A 550 And 775 Motor?
The 550 is the standard motor available in most power-wheel cars. In other words, this is the motor that most electric toy cars, including monster trucks, come with.
Meanwhile, the 775 is an upgraded motor with high torque output, unlike the 550 engines. Thus, the 775 number is the size ID of the motor, which is its outer body frame standard size. Typically, the motor is 42mm in diameter, 66.7mm in height, and 98mm in length.
You can also watch the video below to learn more about the specs of these motors:
What Are The Differences Between 550 vs 775 Motor?
While you can use the 550 and 775 motors for similar applications, these units differ in many ways. So, without further ado, let’s check out their differences.
Operating voltage
The operating voltage of the 550 motor ranges between 6 to 14.4 volts. Even so, this motor is capable of handling up to 20 volts. For example, the Traxxas 21 Turn 550 motor is rated at 14v, but you can run it at 18-20v with no issues.
Besides, its operating voltage ranges from 6 to 36 volts with the 775 motors. This means you can run it at 6v, 12v, 18v, 24v, and 36v without any problems. Therefore, with our top pick, you can enjoy more torque boost compared to a 550 motor.
Speed
In terms of speed, this varies depending on the voltage you choose to run the 550 or 775 motors. For instance, at 12v, you will find a 550 faster than a 775 despite its large size.
However, if you run a 775 motor at 18v, your power wheel car will be as fast as one using a 550 appliance. Meanwhile, you will find a 775 motor faster than a 550 unit operating at 18v, 24, or 36v.
Power output
The power wattage of a 550 motor is approximately 200 watts depending on the operating voltage. For example, an EMAXX Titan 550 can output 190 watts of power at 16.8v.
On the other hand, the power output of a 775 motor ranges between 80 and 300 watts. So, at 24 or 36v, your RC car with a 775 engine may go faster than a 550 motor.
Motor and shaft size
Overall, a 550 motor is relatively smaller in size compared to its 775 counterparts. It measures 36mm in diameter and has a length ranging from 55mm to 90mm. Likewise, the diameter of the shaft is 3.2mm, and the length is 7.62mm.
On the other hand, a 775 motor measures 42mm in diameter, 98mm in length, and 66.7mm in height. Its shaft is also longer than that of a 550 motor at 14 to 17mm in length and 5mm in diameter.
Weight
Because of the small size of a 550 motor, this unit is light in weight at only 7.8 ounces. However, you will find a 775 engine, relatively heavy, weighing approximately 12.3 ounces.
Price
The price difference between a 550 motor and a 775 motor is not significant. This is because the prices vary based on the manufacturer, operating voltage, and RPM of the motor. While the 550 motors are slightly cheaper, you can get a high-quality 550 or 775 motor for less than 20 bucks.
Any Similarities Between The 550 and 775 Motor?
Despite their differences, the 550 and 775 motors have much in common. Read on to find out how similar these motors are.
Rated voltage
While both motors are available in many operating voltages, they have the same rated voltage. The rated voltage for the two engines is 12v.
Type of motor
You can get the 550 and 775 motors in the brushed or brushless type. The brushed type has brushes and is mechanically driven, while the brushless motors are electronically driven.
Applications
Both motors have a wide range of uses. You can use them to power RC toy cars, grinders, RC boats, robotics, CNC machines, and office automation equipment. Also, either motor may replace a wide range of 3/8-inch drills and various outdoor and cordless tools.
Noise level
The 550 and 775 motors operate at low noise. So, you will hardly hear the motors running.
550 Vs. 775 Motor: Which Is Better?
The 775 motor is a better choice, especially if you want to increase the speed of your power wheel cars. However, a 550 motor will run at better speeds than the 775 motors at only 12 volts. In this case, this motor is our recommendation.
In addition to that, the best thing about 775 motors is they run cool at different voltages compared to the 550s. Apart from running at 12 and 18 volts, 775 engines can operate at 24 and 36 volts, ensuring better power output.
FAQs
Now let’s quickly look at some commonly asked questions regarding the 550 vs. 775 motor differences.
What materials are the 550 and 775 motors made of?
Both motors are made of metal. However, they are made of different metals, including stainless steel, copper, and iron.
Is a 550 motor faster than a 775 motor?
Yes, but when operating it at 12 volts. When you run a 775 motor at 18v, 24v, or 36v, it will be faster than a 550 motor.
Conclusion
Knowing the differences between 550 and 775 motors can help you easily choose the right one for your needs. This is because both engines have several similarities, including low noise levels. Not to mention, they are also made of high-quality metal materials and boast similar applications.
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