RZ0X84 - Neodymium Ring Magnet - 3" Dia x 1 1/2" ID x 1/4" Thi

• Dimensions: 3" od x 1 1/2" id x 1/4" thick
• Tolerances: ±0.004" x ±0.004" x ±0.004"
• Material: NdFeB, Grade N42
• Plating/Coating: Ni-Cu-Ni (Nickel)
• Magnetization Direction: Axial (Poles on Flat Ends)
• Weight: 5.75 oz. (163 g)
• Pull Force, Case 1: 56.72 lbs
• Pull Force, Case 2: 287.3 lbs
• Max Operating Temp: 176ºF (80ºC)
• Brmax: 13,200 Gauss
• BHmax: 42 MGOe

These large rings are very strong and good for a variety of applications and experiments. They must be handled with care as they will pinch fingers and probably break if they are allowed to slam together.