Magnetisation Grade:         N38M
Material: Neodymium-Iron-Boron (NdFeB), Neodymium and Steel 
Magnet ID:              NPCB-50-N38M-Zn
Plating / Coating: Zinc / Zn    
Shape: Ring / with Cylindrical Borehole (Hole)   
Pot Magnet Size: 
Pot Total Diameter (D):        50 mm
Pot Total Height (H):         10 mm
Borehole Top (d1):         7 mm
Borehole Bottom (d2):         12.5 mm
Cylindrical Depth (h):         7 mm 
Tolerance:         ±0.1 mm
Magnetisation Direction:   Axial / Radial  
Residual Magnetic Flux Density (Br): 12.2-12.6 KGs (T):  1.12-1.26 T 
Energy Density (BH)max:              35-39 MGOe   279-310 KJ/m³   
Coercivity Force (Hcb):              ≥11.5 KOe  ≥916 KA/m   
Intrinsic Coercivity Force (Hcj):    ≥14 KOe    ≥1114 KA/m   
Maximum Operation Temperature: 100 °C
Delivery Time:           14-35 days   
Measurements:

More options for your choice and what you may have further interest in:
1.More grade of    rare earth neodymium countersunk magnet , We can supply N35~N52, N30M~N50M, N30H~N48H, N30SH~N45SH, N28UH~N40UH, N28EH~N38EH,  etc.   
 2.More Shapes of    rare earth neodymium countersunk magnet : All  Nd-Fe-B magnet can be customized into different shapes like Special shape neodymium strong magnet, Cylinder neodymium strong magnet, Bar neodymium strong magnet, Round neodymium magnet, Disc neodymium strong magnet, Big ring  neodymium strong magnet, Tile segment neodymium strong magnet, sphere (ball) cylinder neodymium strong  magnet, even some Special shape Tile Sintered neodymium strong magnet
3.More magnetization ways of   rare earth neodymium countersunk magnet : with axial, radial, radiation magnetization.   
4.More coating or plating: gold, silver, Ni, Zn, Epoxy, Parylene, etc
5. Except for     rare earth neodymium countersunk magnet , we work well with our cooperative factories to manufacture and supply other magnets like bonded Sintered NdFeb  magnet, Ferrite magnet, AlNiCo magnet, SmCo magnet, Flexible magnet, therapy magnet as well as magnetic assemblies like permanent magnet lifters, etc.
rare earth neodymium countersunk magnet