Why did my Yamaha R1 rotor magnet fail?
The 2004 onwards R1 and FZ1 model had issues with the charging system rotor magnets breaking off the epoxy and completely destroying the stator and sending metal particles all through the oil. It isn’t an “if” it’s a “when” it’ll happen as the epoxy gets brittle over heat cycles.
Is it possible to rebuild a Bosch magneto?
Earlier articles on magneto rebuilding are here and here and here . Three magneto armatures, from 1910’s Bosch units. The left one is the original Bosch parts. The middle is a very good modern rebuild, the right unit is a GREAT modern rebuild.
Which is the best rebuild of a magneto?
The middle is a very good modern rebuild, the right unit is a GREAT modern rebuild. Knowing the differences between these three is difficult, but will help the rider to understand the quality of the work. #1 Is a serviceable unit, and still works ok. But the capacitor/condenser is slowly dying.
What kind of magnets are used in hit and miss engines?
Most magnetos on hit and miss engines used magnets that were made of quench hardened steel alloyed with chrome, cobalt, or tungsten. Magnets of this material were made from rolled stock by forming or cutting into the shape of a horseshoe or long bar.
Most magnetos on hit and miss engines used magnets that were made of quench hardened steel alloyed with chrome, cobalt, or tungsten. Magnets of this material were made from rolled stock by forming or cutting into the shape of a horseshoe or long bar.
Where are the magnets located in a BLDC motor?
There are two basic BLDC motor designs: inner rotor and outer rotor design. In an outer rotor design, the windings are located in the core of the motor. The rotor magnets surround the stator windings as shown here.
Why are inner rotors used in BLDC motors?
The primary advantage of an inner rotor construction is its ability to dissipate heat. A motor’s ability to dissipate heat directly impacts its ability to produce torque. For this reason, the overwhelming majority of BLDC motors use an inner rotor design.
What are the advantages of an inner rotor motor?
In an inner rotor design, the stator windings surround the rotor and are affixed to the motor’s housing as shown here. The primary advantage of an inner rotor construction is its ability to dissipate heat. A motor’s ability to dissipate heat directly impacts its ability to produce torque.