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 Stamina Avari Folding Magnetic Resistance Manual Treadmill NEW 2011 FREE SHIP $199.00 Time Remaining: 15d 1h 52m Buy It Now for only: $199.00 |
 EXERCISE BIKE Magnetic Resistance Bike Gym Indoor Bicycle Fitness DAILY BUY DEAL $109.99 Time Remaining: 6d 23h 28m Buy It Now for only: $109.99 |
 Sunny Pro Health Fitness Magnetic Resistant Indoor Cycling Exercise Bike SF B910 $144.50 Time Remaining: 2d 5h 17m Buy It Now for only: $144.50 |
 Stamina Magnetic Resistance 5325 Upright Exercise Bike $199.00 Time Remaining: 6d 21h 40m Buy It Now for only: $199.00 |
 Stamina Magnetic Resistance Stationary Cycling Upright Exercise Bike 5325 NEW $199.00 Time Remaining: 17d 17h 2m Buy It Now for only: $199.00 |
 New Phoenix Magnetic Resistance Upright Exercise Bike A $189.99 Time Remaining: 6d 4h 16m Buy It Now for only: $189.99 |
 LifeCORE HRT Rower Ultra compact Rower Providing Air Magnetic Resistance 67lbs $819.99 Time Remaining: 9h 35m Buy It Now for only: $819.99 |
 2011 Stamina Avari Magnetic Resistance Recumbent Cardio Exercise Bike A150 200 $199.00 Time Remaining: 7d 4h 53m Buy It Now for only: $199.00 |
 Nautilus NE 3000 NE3000 Magnetic resistance brakegenerator $99.99 Time Remaining: 22d 12h 26m Buy It Now for only: $99.99 |
 New Stamina Magnetic Resistance Upright Exercise Bike $179.00 Time Remaining: 26d 23h 27m Buy It Now for only: $179.00 |
 Stamina 4825 Magnetic Resistance Recumbent Bike $150.00 Time Remaining: 13d 3m Buy It Now for only: $150.00 |
 New EXERCISE BIKE Sunny MAGNETIC Resistance Upright $139.99 Time Remaining: 2d 54m Buy It Now for only: $139.99 |
 Stamina 1300 Magnetic Resistance Upright Bike Exercise Home Gym Equipment $180.96 Time Remaining: 25d 17h 21m Buy It Now for only: $180.96 |
 Stamina 1350 Magnetic Resistance Recumbent Bike Exercise Home Gym Equipment $191.87 Time Remaining: 25d 17h 21m Buy It Now for only: $191.87 |
 Stamina 4825 Magnetic Resistance Recumbent Bike Assemb $74.95 Time Remaining: 5d 17h 5m Buy It Now for only: $74.95 |
 NEW Crescendo Magnetic Resistance Recumbent Exercise Bike with On Board Computer $259.99 Time Remaining: 7d 22h 31m Buy It Now for only: $259.99 |
 Stamina Magnetic Resistance 5325 Upright Bike 15 5325 $168.78 Time Remaining: 26d 7h 14m Buy It Now for only: $168.78 |
 Marcy Magnetic Resistance Upright Bike $100.00 Time Remaining: 27d 23h 43m Buy It Now for only: $100.00 |
 NEW Stamina Magnetic Resistant Programmable Recumbent Exercise Fitness Bike 4825 $269.50 Time Remaining: 28d 16h 7m Buy It Now for only: $269.50 |
 Stamina Magnetic Resistance Recumbent Exercise Bike NEW 15 1350 $199.00 Time Remaining: 14d 15h 10m Buy It Now for only: $199.00 |
 Confidence Fitness Space Saving X Bike w Adjustable Magnetic Resistance System $197.38 Time Remaining: 5d 20h 52m Buy It Now for only: $197.38 |
 SUNNY SF B904 MAGNETIC RESISTANCE FITNESS INDOOR CYCLING EXERCISE BIKE MSRP 594 $266.99 Time Remaining: 22d 1h 29m Buy It Now for only: $266.99 |
 Stamina Magnetic Resistance Upright 1300 Exercise Bike $194.00 Time Remaining: 6d 21h 39m Buy It Now for only: $194.00 |
 Stamina Programmable Magnetic Resistance Recumbent Exercise Bike 15 4825 NEW $239.00 Time Remaining: 10d 21h 9m Buy It Now for only: $239.00 |
 Stamina 1300 Magnetic Resistance Upright Bike w oversized cushioned seat NEW $163.98 Time Remaining: 3d 9h 50m Buy It Now for only: $163.98 |
 NEW Crescendo Fitness Exerrcise Folding Magnetic Resistance Power Rower $384.99 Time Remaining: 7d 22h 31m Buy It Now for only: $384.99 |
 Marcy ME 708 Upright Magnetic Resistance Bike NIB $109.99 Time Remaining: 24d 15h 59m Buy It Now for only: $109.99 |
 Marcy Upright Magnetic Resistance Exercise Bike New $169.95 Time Remaining: 19d 14h 44m Buy It Now for only: $169.95 |
 Elite Fitness Magnetic Resistance Upright Bike with Pulse EB 480 $150.99 Time Remaining: 18d 8h 35m Buy It Now for only: $150.99 |
 BRAND NEW Stamina 5325 Magnetic Resistance Upright Exercise Bike Pulse Sensor $197.77 Time Remaining: 3d 4h 3m Buy It Now for only: $197.77 |
 NEW Crescendo Fitness Magnetic Resistance Exercise Bike with On Board Computer $249.99 Time Remaining: 7d 22h 31m Buy It Now for only: $249.99 |
 Stamina 4825 Magnetic Resistance Recumbent Bike Exercise Home Gym Equipment $999.00 Time Remaining: 25d 17h 21m Buy It Now for only: $999.00 |
 Stamina 1300 Magnetic Resistance Upright Bike $155.00 Time Remaining: 18d 1h 41m Buy It Now for only: $155.00 |
 NEW Stamina Magnetic Resistant Fusion Recumbent Exercise Fitness Bike 4545 $218.50 Time Remaining: 28d 17h 48m Buy It Now for only: $218.50 |
 NEW Stamina 4825 Magnetic Resistance Recumbent Bike NEW $204.99 Time Remaining: 17d 5h 35m Buy It Now for only: $204.99 |
 Stamina 5325 Magnetic Resistance Upright Exercise Bike NEW $197.98 Time Remaining: 3d 9h 47m Buy It Now for only: $197.98 |
 NEW SEALED Stamina 5325 Magnetic Resistance Upright Exercise Bike Pulse Sensor $197.50 Time Remaining: 9d 3h 40m Buy It Now for only: $197.50 |
 SALE Marcy Magnetic Resistant Recumbent Exercise Fitness Bike ME 709 8 Levels $174.99 Time Remaining: 8d 4h 6m Buy It Now for only: $174.99 |
 Rowing Machine Rower New Home Body Craft Air Magnetic Resistance VR100 Folding $749.00 Time Remaining: 11d 19h 11m Buy It Now for only: $749.00 |
 Stamina Magnetic Resistance Recumbent Bike $206.95 Time Remaining: 15d 21h Buy It Now for only: $206.95 |
 Stamina Easy Shape Trainer Magnetic Resistance Upright Exercise Bike Cycle $172.93 Time Remaining: 9d 18h 39m Buy It Now for only: $172.93 |
 Phoenix New Magnetic Recumbent Exercise Bike with Ultra Quiet Resistance System $254.95 Time Remaining: 14h Buy It Now for only: $254.95 |
 NEW Magnetic Resistance Exercise Bike with Computer $269.99 Time Remaining: 27d 52m Buy It Now for only: $269.99 |
 Graber Mag Indoor Bicycle Trainer Exercise Equipment Magnetic Resistance Cycle $179.99 Time Remaining: 19d 16h 52m Buy It Now for only: $179.99 |
 Stamina Magnetic Resistance Upright Bike $182.95 Time Remaining: 16d 23h 35m Buy It Now for only: $182.95 |
 CREASCENDO Magnetic Resistance Elliptical Cross Trainer $290.63 Time Remaining: 4d 17h 27m Buy It Now for only: $290.63 |
 STAMINA MAGNETIC RESISTANCE UPRIGHT 1500 EXERCISE BIKE $165.50 Time Remaining: 5d 16h 42m Buy It Now for only: $165.50 |
 BodyCraft VR100 Quality Air Rower Magnetic Resistance $749.00 Time Remaining: 16d 3h 5m Buy It Now for only: $749.00 |
 Crescendo 80210 Magnetic Resistant Recumbent Exercise Fitness Bike w Monitor $259.50 Time Remaining: 8d 4h 13m Buy It Now for only: $259.50 |
 Exerpeutic Magnetic Resistant Indoor Folding Exercise Bike 400XL 8 Levels $184.99 Time Remaining: 2d 15h 18m Buy It Now for only: $184.99 |
 NEW Stamina 5325 Magnetic Resistance Upright Exercise B $186.81 Time Remaining: 10d 16h 10m Buy It Now for only: $186.81 |
 Stamina 1300 Magnetic Resistance Upright Bike $158.99 Time Remaining: 18d 12h 24m Buy It Now for only: $158.99 |
 Stamina Magnetic Resistance Upright 1300 Exercise Bike $190.00 Time Remaining: 12d 19h 31m Buy It Now for only: $190.00 |
 Crescendo Fitness Magnetic Resistance Exercise Bike with On Board Computer $229.95 Time Remaining: 18d 23h 44m Buy It Now for only: $229.95 |
 Stamina 5325 Magnetic Resistance Upright Exercise Bike $208.95 Time Remaining: 17d 23h 6m Buy It Now for only: $208.95 |
 Stamina 5325 Silent Magnetic Resistance Upright Bike $219.99 Time Remaining: 13d 13h Buy It Now for only: $219.99 |
 Stamina Magnetic Resistant Upright Exercise Fitness Bike 5325 8 Levels Adj Seat $196.99 Time Remaining: 2d 3h 57m Buy It Now for only: $196.99 |
 Magnetic Resistance Exercise Bike w on Board Computer $299.99 Time Remaining: 7d 15h 59m Buy It Now for only: $299.99 |
 SALE Marcy Magnetic Resistant Recumbent Exercise Fitness Bike NS1003R 8 Levels $234.99 Time Remaining: 14d 16h 2m Buy It Now for only: $234.99 |
 Stamina 4825 Magnetic Resistance Recumbent Bike $236.99 Time Remaining: 15d 17h 42m Buy It Now for only: $236.99 |
 Sunny Pro Health Fitness Magnetic Resistant Indoor Cycling Exercise Bike SF B901 $304.99 Time Remaining: 2h 21m Buy It Now for only: $304.99 |
 Crescendo Magnetic Resistance Elliptical Cross Trainer $373.83 Time Remaining: 7d 15h 10m Buy It Now for only: $373.83 |
 Phoenix Magnetic Recumbent Exercise Bike Cardio Resistance Fitness Workout NEW $199.99 Time Remaining: 18d 10h 4m Buy It Now for only: $199.99 |
 Stamina Magnetic Resistance Recumbent Exercise Bike $199.99 Time Remaining: 5d 21h 12m Buy It Now for only: $199.99 |
 Stamina Magnetic Resistance Upright Exercise Bike $179.99 Time Remaining: 5d 21h 12m Buy It Now for only: $179.99 |
 Stamina Magnetic Resistance 5325 Upright Exercise Bike $199.99 Time Remaining: 5d 21h 13m Buy It Now for only: $199.99 |
Magnetic Resistance
Rare Earth Magnets: Properties And Perils
If you are in the market to buy rare earth magnets, it might be a good idea to take a refresher course on their properties, benefits, and disadvantages over other types of magnets. Ordering magnets online is easy if you know how they will be used and what properties to select. They come in all shapes and sizes with varying functions and special coatings. All you have to do is choose the one best suited to your needs.
Made from alloys of rare earth elements, rare earth magnets are strong, permanent magnets that create their own persistent magnetic fields. There are two types: 1) neodymium and 2) samarium-cobalt magnets. Samarium-cobalt magnets are more costly and have a weaker magnetic field that the neodymium magnets. Their advantage is that they are more resistant to oxidation and the Curie temperature (the temperature at which they lose their magnetism). Made of the alloy combination of neodymium, iron, and boron, neodymium magnets are stronger and more affordable, making them an effective replacement for Alnico and ferrite magnets. Many people have had the opportunity to buy rare earth magnets, since they are used in the production of computer hard drives, audio speakers and headphones, bicycle dynamos, fishing reel brakes, and permanent magnet motors in cordless tools like self-powered flashlights.
Rare earth magnets formed from alloys of rare earth elements (lanthanides) and transitional metals like iron, nickel, and cobalt are more stable because their Curie temperatures are far above room temperature. They have the advantage of high magnetic anisotropy, or direction dependence, which means that they magnetize in one direction but not in the opposite direction, retaining high magnetism as long as they are in a solid state. Their strength is further demonstrated by the resistance of the magnetic field to demagnetization and by the density of their magnetic energy.
The advantages of rare earth magnets are undeniable but their hazards are not well known. The fact is that any piece larger than a few centimeters can cause injuries to body parts caught between the magnet and a piece of metal. Magnets can attract one another with such a force that they chip one another, sending brittle material through the air that could injure eyes and soft tissue. In addition, if two magnets are swallowed, they can pinch a fold of intestine, causing distress and eventually leading to death. These magnets can also erase magnetic media like hard drives and credit cards that have even been known to magnetize CRT monitors at a significant distance.
Finally, before you buy rare earth magnets, remember that its pull force depends on many variables and environmental conditions. Surface conditions and the type of material being pulled against can change that force. The presence, or absence, of lateral and/or rotational forces, as well as plating composition can also lessen the pull strength.
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Stamina 1350 Magnetic Resistance Recumbent Bike