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Product code: 13010
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This ferrite ring magnet has an outside diameter of 145mm, an inside diameter of 75mm and a thickness of 20mm. It has a pull force of 8.1kg and a Y30BH grade. It is identified by the AMF Magnetics part number 13010.
Our ferrite ring magnets are often used in loudspeakers and also in resonance imaging and torque drives. One popular application for children is the fishing game, tied on a piece of string to pick up pins and needles. The ferrite rings offer reduced magnetic strength, due to the hole, but the inexpensive pricing makes them a firm favourite. Some applications are: holding, door closures, joinery, light fixture.
I'm floating mine too, they work well as a friction reduced bearing/flywheel.
Used to float a rotating gyroscope. Worked well as field was uniform and strong. shielded packaging was superb.
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NB: Ranges are indicative for product category, please check individual products for specific values within that range.
The Pull Force listed for each magnet is based on lifting 10mm thick steel from a horizontal surface. Magnets on a vertical surface (of 10mm thick steel) are generally able to hold around only 30% of the pull force listed in the product description. This is due to the effects of gravity and the lack of friction between the surface and the shiny magnet. Read More