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  2. Spindle (tool) - Wikipedia

    en.wikipedia.org/wiki/Spindle_(tool)

    A main component of this spindle is the motor, stored internally. Internal Motor: limited power and torque due to restricted space within the spindle housing; Speed Range: 20,000 [3]-60,000 RPM [2] (top speed according to design) Advantage: high top speed expands application use; Disadvantage: sensitive life range according to use

  3. Speeds and feeds - Wikipedia

    en.wikipedia.org/wiki/Speeds_and_feeds

    A slower feed rate usually results in a finer surface as more cuts are made for any length of wood. Spindle speed becomes important in the operation of routers, spindle moulders or shapers, and drills. Older and smaller routers often rotate at a fixed spindle speed, usually between 20,000 and 25,000 rpm.

  4. Glossary of mechanical engineering - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_mechanical...

    However, glossaries like this one are useful for looking up, comparing and reviewing large numbers of terms together. You can help enhance this page by adding new terms or writing definitions for existing ones. This glossary of mechanical engineering terms pertains specifically to mechanical engineering and its sub-disciplines.

  5. Hard disk drive performance characteristics - Wikipedia

    en.wikipedia.org/wiki/Hard_disk_drive...

    The spindle motor speed can use one of two types of disk rotation methods: 1) constant linear velocity (CLV), used mainly in optical storage, varies the rotational speed of the optical disc depending upon the position of the head, and 2) constant angular velocity (CAV), used in HDDs, standard FDDs, a few optical disc systems, and vinyl audio ...

  6. Grinding (abrasive cutting) - Wikipedia

    en.wikipedia.org/wiki/Grinding_(abrasive_cutting)

    Ultra-high speed grinding (UHSG) can run at speeds higher than 40,000 fpm (200 m/s), taking 41 s to remove 1 in 3 (16 cm 3) of material, but is still in the research-and-development (R&D) stage. It also requires high spindle power and high spindle speeds.

  7. Technical FAQ: AXS chain roller size explained, AXS/11-speed ...

    www.aol.com/news/technical-faq-axs-chain-roller...

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  8. 21 Vintage Photos of Christmas Window Displays From the Last ...

    www.aol.com/21-vintage-photos-christmas-window...

    Dolls float high above a baby carriage and other doll accessories and furniture in this early 20th century display from Macy's. Some dolls back then cost $1 , which is roughly $35 today. Library ...

  9. Mechanical engineering - Wikipedia

    en.wikipedia.org/wiki/Mechanical_engineering

    Various machine components used in mechanical engineering. Mechanical engineering is the study of physical machines that may involve force and movement. It is an engineering branch that combines engineering physics and mathematics principles with materials science, to design, analyze, manufacture, and maintain mechanical systems. [1]