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  2. Weight plate - Wikipedia

    en.wikipedia.org/wiki/Weight_plate

    Weight machines commonly use specialized sets of plates (called "weight stacks"), consisting of a set of rectangular plates mounted on rails. Through a cable and pulley system, the burden is transferred to the machine's user. By placing a pin in the stack that causes the cable to pull on each plate above the pin, the weight is selected.

  3. BUR Barbell Company - Wikipedia

    en.wikipedia.org/wiki/BUR_Barbell_Company

    185 Pound Set – This "Deluxe" set was sold during the 1930s and 1940s under the BUR-BEL brand and included 155 pounds of plates, a standard bar, dumbbell handles with collars, and – unlike later sets – kettlebell handles and iron boots. [13] BUR-130 – Sometime in the early-1950s, the "BUR-130" became the only barbell set offered. It set ...

  4. Weight machine - Wikipedia

    en.wikipedia.org/wiki/Weight_machine

    A weight machine is an exercise machine used for weight training that uses gravity as the primary source of resistance and a combination of simple machines to convey that resistance to the person using the machine. Each of the simple machines (pulley, lever, wheel, incline) changes the mechanical advantage of the overall machine relative to the ...

  5. Rack unit - Wikipedia

    en.wikipedia.org/wiki/Rack_unit

    Rack with sample component sizes including an A/V half-rack unit. A rack unit (abbreviated U or RU) is a unit of measure defined as 1 + 3 ⁄ 4 inches (44.45 mm). [1] [2] It is most frequently used as a measurement of the overall height of 19-inch and 23-inch rack frames, as well as the height of equipment that mounts in these frames, whereby the height of the frame or equipment is expressed ...

  6. Dumbbell - Wikipedia

    en.wikipedia.org/wiki/Dumbbell

    Selectorized dumbbells A set of fixed-weight dumbbells. By the early 17th century, the familiar shape of the dumbbell, with two equal weights attached to a handle, had appeared. [8] There are currently three main types of dumbbell: Fixed-weight dumbbells are weights created in a dumbbell shape.

  7. Barbell - Wikipedia

    en.wikipedia.org/wiki/Barbell

    A barbell is a piece of exercise equipment used in weight training, bodybuilding, weightlifting, powerlifting and strongman, consisting of a long bar, usually with weights attached at each end. Barbells range in length from 1.2 metres (4 ft) to above 2.4 metres (8 ft), although bars longer than 2.2 metres (7.2 ft) are used primarily by ...

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