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2. Ball bearing motor - Wikipedia

   en.wikipedia.org/wiki/Ball_bearing_motor

   A ball bearing motor is an unusual electric motor that consists of two ball-bearing-type bearings, with the inner races mounted on a common conductive shaft, and the outer races connected to a high current, low voltage power supply. An alternative construction fits the outer races inside a metal tube, while the inner races are mounted on a ...

3. List of auto parts - Wikipedia

   en.wikipedia.org/wiki/List_of_auto_parts

   Electric motor. Induction motor; Synchronous motor; High voltage battery pack; ... Grooved ball bearing; Needle bearing; Roller bearing; Sleeve bearing; Wheel bearing ...

4. DC motor - Wikipedia

   en.wikipedia.org/wiki/DC_motor

   This has restricted the practical application of this type of motor. Ball bearing motor – A ball bearing motor is an unusual electric motor that consists of two ball bearing-type bearings, with the inner races mounted on a common conductive shaft, and the outer races connected to a high current, low voltage power supply. An alternative ...

5. Computer fan - Wikipedia

   en.wikipedia.org/wiki/Computer_fan

   Ball bearings: Though generally more expensive than fluid bearings, ball bearing fans do not suffer the same orientation limitations as sleeve bearing fans, are more durable at higher temperatures, and are quieter than sleeve-bearing fans at higher rotation speeds. The typical lifespan of a ball bearing fan may be over 60,000 hours at 50 °C ...

6. Coupling - Wikipedia

   en.wikipedia.org/wiki/Coupling

   A sleeve coupling consists of a pipe whose bore is finished to the required tolerance based on the shaft size. Based on the usage of the coupling a keyway is made in the bore in order to transmit the torque by means of the key. Two threaded holes are provided in order to lock the coupling in position. Sleeve couplings are also known as box ...

7. NTN Corporation - Wikipedia

   en.wikipedia.org/wiki/NTN_Corporation

   NTN BEARPHITE (TM) bearings are fluid hydrodynamic bearings made from sintered material whose sliding bore surface has hydrodynamic grooves shaped like herringbones, which permit higher rotational accuracy at faster speeds. Such bearings are used in audiovisual equipment, automotive electrical equipment, household appliances and office ...