Multipole Ring Magnet Part No.: HS-MR10-128
Magnetisation Grade: BMNP-8L
Material: Plastic bonded Strontium Ferrite SrFe.
Magnet Shape: Ring
Magnet Size: inner diameter =38.5mm, outer diameter =42.5mm, thickness =1.5mm
Pole Length: 1.0 mm
Poles No.: 128 Poles
This specification defines the dimensional and magnetic properties of a multipole magnetic ring for use with the linear position magnetic encoder for off-axis rotary applications.
One side mangetized Plastic Bonded Strontium Ferrite Multipole Ring Magnet, The sensor magnet contains only the magnetic ring (see picture on the right), the metal carrier is shown for illustration purposes only.
Marking
The magnet ring has two marks at the backside:
One mark shows the number of poles (128) the other mark shows a single digit letter (A…F), which is of no relevance.
Mounting the Magnet Ring
The magnet ring may be mounted directly on magnetic or non-magnetic surfaces. When magnetic surfaces are used, the ring may be mounted on top of the surface, but not immersed in a cavity, as this may weaken the magnetic field of the magnet. When mounting the magnet on a non-magnetic surface, either method is acceptable.
Depending on the carrier material, there are several adhesives available to glue the ring to the surface. For general ruggedness and vibration demands, the use of two-component-adhesive (binder + hardener) has proven to be successful in most cases.
For more rigid demands, As magnet supplier HSMAG offer customized solutions where the magnet material is directly overmolded on the carrier, e.g. a shaft, bushing, plate, etc.
magnetic multipole ring 128 poles drawing
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