The greatest obstacle to making electric motors viable was being able to produce and distribute electricity. The first electric motors capable of doing work appeared in the 1830s, and used electricity generated from running water. Their first uses were in running printing presses and power tools.
Did you know that the Allies often targeted ball bearing factories in Germany during bombing raids during World War II? Destroying ball bearings was one way to hamper the German war industry.
In the 1850s, John Gwynne began developing centrifugal pumps for land drainage powered by steam engines of his own design. His company quickly diversified, making small electrical pumps as well as porcelain pumps used to produce and transport chemicals.
Bearings don't just make machines possible here on Earth. Bearings are used in weather and other satellites, the Hubble telescope, and the Mars Space Rover, for example.
Bicycle tires have a specific valve stem (made by Presta) that is different from the valve stem on an automobile tire. Make sure the electric bicycle pump you choose can accommodate the valve on a bicycle.
Ball bearing failure modes are most often the result of not rotating, which causes oscillating forces on the bearing to result in impact damage: called brinelling or false brinelling. Static maximum loads from non-rotating balls also cause component stress fracturing.
The first electrical motor is believed to have been a simple electrostatic motor that was invented by Andrew Gordon in the 1740s. But the electric motor as we know it today was developed by British chemist and physicist Michael Faraday.
One of the worse things you can do for your ball bearings is to lubricate them using cheap or improper lubricants. Mixing lubricants is also unwise, as this can soften or harden the mixture, resulting in an inability to release bearing oil or worse, releasing all of the oil.
The first practical application of an electric motor was demonstrated in 1835 when Dutch inventors Sibrandus Stratingh and Christopher Becker attached a small motor to a model car. The second occurred in 1839 when Moritz Jacobi developed an electric motor that could power a boat.
Do you know that poor sheave and sprocket alignment, along with misalignment are among the major causes of acceleration of failures of power transmission v-belts? V-belts tend to experience sidewall stresses as well due to misalignment.
In an electric motor, the rotating part of the motor is called an "armature" or "rotor." The stator is the housing and coils that make up the exterior of the motor and enable the creation of a stationary magnetic field.
Bearings use materials that are common in other household items. For example, polytetrafluoroethylene, or PTFE, is used in bearings, but it is also what makes pots and pans nonstick.
One benefit of electric motors is their versatility. They are available in a wide range of horsepower sizes, as well as in a variety of enclosures for different environmental conditions, including open-drip proof, weather resistant, totally enclosed fan-cooled, and explosion proof.
From 1725 to 1728, skilled clockmaker John Harrison worked to improve the performance of pendulum clocks with ball bearings. Many of his clocks are still in great working condition today.
Did you know that the fundamental job of a motor controller is to start and stop the motor? This component also provides other functions, including varying the motor speed, current, and torque.
How fast a bearing will spin and how much of a load it can bear depend on its size and shape. In some cases, just ensuring that a bearing can spin is enough. For more complex uses, like providing strength in addition to spinning (like the wheels on rollerblades), other design considerations need to be taken into consideration.
Shallow electric well pumps are designed for use in well applications of 25 feet or less. One feature to look for with this type of pump is overload protection, which will prevent motor burnout over the long term.
Most of the modern products require the use of bearings for proper fittings. In fact, all modern products from heat pumps to cars have bearings fitted inside them.
Electric motors are composed of two main parts. One of these parts is the stator. The stator is a "permanent magnet (or magnets) around the edge of the motor case that remains static," according to the website Explain that Stuff.
Unusual noise made by your machine bearings can be an indication that they need to be replaced. This includes everything from a crunching or chattering sound to squeaks, squeals, or a hissing noise.
Be careful when lubricating the bearings of an electric motor. The excess grease and oil from over-lubrication can create dirt and damage the bearings.
Did you know that the first use of a bearing can be tracked all the way back to ancient Egypt? Here, builders put round logs under heavy stones in order to roll them to the building site.
