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2. The Most Comfortable Swivel Chairs of 2024, Vetted by ... - AOL

   www.aol.com/most-comfortable-swivel-chairs-2024...

   The easiest choice is to use glides instead of casters for stationary chairs, however, where these reduce the most risk when it comes to floor damage. The 20 Most Comfortable Accent Chairs of 2024 ...

3. Caster - Wikipedia

   en.wikipedia.org/wiki/Caster

   However, the larger the diameter of a caster wheel, the higher the caster support arm must be. Either the base of a low-hanging object must be lifted higher above the wheels, or the casters must hang out to the sides straddling the low-hanging supported object. While rotating around the vertical shaft, swivel caster wheels sweep out a space.

4. List of polyurethane applications - Wikipedia

   en.wikipedia.org/wiki/List_of_polyurethane...

   Industrial Insulation. Rigid polyurethane foam is used in various industries to provide thermal insulation to installations and pipes. In particular, the piping for district heating systems in Europe is primarily insulated using a pre-insulated pipes sandwich assembly composed of a steel heat service pipe, an insulating layer (polyurethane foam) and a polyethylene (PE) casing, which are bonded ...

5. Thermoplastic polyurethane - Wikipedia

   en.wikipedia.org/wiki/Thermoplastic_polyurethane

   Thermoplastic polyurethane (TPU) is any of a class of polyurethane plastics with many properties, including elasticity, transparency, and resistance to oil, grease, and abrasion. Technically, they are thermoplastic elastomers consisting of linear segmented block copolymers composed of hard and soft segments.

6. Centreless wheel - Wikipedia

   en.wikipedia.org/wiki/Centreless_wheel

   The Skatecycle is a device similar to a caster board, but with hubless wheels and a 2-axis twisting axle replacing the function of the casters. The central axle connects two standing platforms surrounded by 9" polyurethane hubless wheels, giving said wheels the appearance of stirrups. In order to move the unit, the rider rotates their feet ...

7. Penny board - Wikipedia

   en.wikipedia.org/wiki/Penny_board

   Wheels: Penny board wheels are made from Polyurethane, with a plastic core. The wheels on 22-inch (55.9 cm) and 27-inch (68.6 cm) Penny boards have a diameter of 59 mm (2.323 inches), while Penny longboard wheels have a larger diameter of 69 mm (2.717 inches). All Penny wheels are rated at 83A. [7]