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  2. Artistic roller skating - Wikipedia

    en.wikipedia.org/wiki/Artistic_roller_skating

    Ball bearings are placed in wheels and allow them to roll. Typically, 7mm bearings are used on quad artistic skates, but 8mm bearings can be used on certain plates that have an 8mm axle. Most inline skates use 8mm bearings. The ABEC rating determines the tolerances in the bearing; [12] the higher the ABEC rating, the more tolerance. Steel ball ...

  3. Roller skates - Wikipedia

    en.wikipedia.org/wiki/Roller_skates

    The first roller skate was an inline skate design, effectively an ice skate with a line of wheels replacing the blade. In modern usage, the term typically refers to skates with two pairs of wheels on shared axles like those of skateboards (early versions of which were made using roller skate parts). Skates with this configuration are also known ...

  4. Inline skates - Wikipedia

    en.wikipedia.org/wiki/Inline_skates

    Urban skates Hockey skates. Inline skates are boots with wheels arranged in a single line from front to back, allowing a skater to roll along on these wheels. Inline skates are technically a type of roller skate, but most people associate the term roller skates with quad skates, another type of roller skate with a two-by-two wheel arrangement similar to a car.

  5. Powell Peralta - Wikipedia

    en.wikipedia.org/wiki/Powell_Peralta

    Skateboarding, quad roller skates: Predecessor: Powell Corporation (2005) [1] Founded: 1978; 47 years ago () Founder: George Powell and Stacy Peralta: Successor: Powell Corporation (1991) Products: Skateboard decks, skateboard wheels, quad roller skate wheels, bearings and accessories: Website: powell-peralta.com

  6. Roller skating - Wikipedia

    en.wikipedia.org/wiki/Roller_skating

    1863: The four-wheeled turning roller skate, or quad skate, with four wheels set in two side-by-side pairs (front and rear), was first designed, in New York City by James Leonard Plimpton in an attempt to improve upon previous designs. The skate contained a pivoting action using a rubber cushion that allowed the skater to skate a curve just by ...

  7. Roller Derby (brand) - Wikipedia

    en.wikipedia.org/wiki/Roller_Derby_(brand)

    Roller Derby Skate Corp is an American manufacturer and distributor of sporting goods, specializing in quad skates, inline skates, ice hockey skates, skateboards, skating accessories, and recently, through its acquisition of 360 Inc., sporting goods for water sports including body boards, surfboards and swim products. Roller Derby sells ...