What toys can you think of that require the use of ball bearings? In the context of a yo-yo, ball bearings were introduced in the early 1990’s. They are used to reduce friction while the yo-yo is “sleeping”, a fundamental yo-yo trick.
A universal electric motor is designed to operate on either AC (alternating current) or DC (direct current) power. These motors offer a good power to weight ratio, but are generally less efficient and less reliable than other electric motors.
At San Francisco Airport, ball bearings have been implemented into structures due to earthquakes. Columns sit on bearings that can move with the earth moves and then return to their position.
Did you know that Michael Faraday's biggest breakthrough in electricity was his invention of the first electric motor? He accomplished this by dipping a free-hanging wire into a pool of mercury with a magnet.
The first time a steel ball bearing design was patented was in 1869. It was at that time than a bicycle mechanic named Jules-Pierre Suriray created the bearings to increase the efficiency of the bicycle wheels.
Nearly all electric motors operate on the principle of magnetism. Magnetic fields are formed in the rotor and the stator, generating the force necessary to turn the motor shaft.
Leonhard Euler developed many of the mathematical equations that make modern pumps possible. Euler had numerous problems with eyesight throughout his career, first losing vision in his right eye, then his left. He continued to work using mental calculation.
In additions to roller thrust bearings, tapered roller bearings are one type of bearing that can support large radial and large thrust loads. These are used in car hubs, where they are usually mounted in pairs facing opposite directions so that they can handle thrust in both directions.
There’s a museum called the Spark Museum that is dedicated to teaching the public about electric motors, among other things. It has a wide selection of pictures of the first motors.
It is a common misconception that hollow base bearings are just as strong as solid base bearings, but this is simply not true. Because solid base bearings are made without fillings or cavities, they stand up well against high pressures, and no traps or openings means no bacteria or fungus!
In 1822, mathematician Peter Barlow invented a rotating electromechanical device, which many view as the predecessor to the electric motor. Barlow also developed accurate and comprehensive mathematical tables, which remained in active use until computers rendered them obsolete.
Bearings find their use everywhere from houses to major industrial setups. In fact, you would be amazed to know that the Hubble Telescope and even the Mars Space Rover have been built using bearings.
When choosing the best air compressor for your needs, some things to keep in mind are the maximum operating pressure required, the maximum CFM usage, and whether the machine is portable or stationary.
Did you know that ball bearings are used in a skateboard? The wheels have two bearings, commonly a 608-Z that is a deep groove ball bearing with an eight-millimeter bore diameter.
Electric motor history: Did you know that electrostatic devices have existed for nearly 300 years? Scottish monk Andrew Gordon is believed to have created the devices during the 1740s.
Self-aligning ball bearings are manufactured with the inner ring and ball assembly contained within an outer ring whose raceway is spherical. The construction of self-aligning bearings allows them to tolerate minor shaft or housing deflection misalignment, making them useful as transmission shafts.
AC motors, the second most popular electric motor in electric cars today, are a bit complicated. The car needs a voltage inverter but AC motors can achieve more power, such as the Tesla, which goes from 0 to 60mph in 3.9 seconds.
The turning part of any electric motor is known as the rotor. These contain conductors or permanent magnets that are arranged so that the electromagnetic fields transfer power to spin the rotor. The end of the rotor then connects to the machine.
Did you know Conrad bearings can withstand both axial and radial loads? Unfortunately, they also have a lower load capacity due to the limited number of balls within the assembly. Conrad bearings are still widely used in the mechanical industries.
You would be surprised how many items contain electrical motors. Motors can be found in power tools, industrial fans, but also household appliances and wristwatches. Don’t just throw away a beloved appliance consider having the motor replaced first.
Do you know that precision ball bearings have a tolerance of less than one micron? They are one of the most sought after bearings by watch makers and are used in aerospace as well.
Excessive noise and/or vibration in a motor are usually symptoms of a motor problem. If left unchecked, the vibration itself may cause serious mechanical damage to the motor.
Ball bearings work on simple science: the coefficient of friction. This means that the balls in a rolling element bearing maintain a separation between the bearing races. In simple terms, the rotating balls produce less heat and are more efficient than two flat surfaces sliding against each other.
