Ceramic Magnets Polarity Options

Single opposite poles

Single opposite poles on each face
(Standard)
Generally used with steel pole pieces; Backplate, Cup, or Sandwich assemblies.

Single opposite poles

Multiple poles

Multiple poles on one face
(Optional)
Greater magnetic concentration. A backplate will increase holding force.

Multiple poles



General Information

Tolerances: As sintered size

Dimensions at right angles to direction of pressing:
Tolerance: ± 1-1/2% or ± .010", whichever is greater.

Dimensions parallel to direction of pressing:

Dimensions Tolerances
0 - 5/8" ± 1/64"
Over 5/8" to 1-1/2" ± 1/32"

Finished Sizes (f):

Finished (f) Surface Roughness: 125 microinches

Dimension Tolerance
Any plane ground ± .005"
Centered or centerless ground 0-1.5" ± .002"
Centered or centerless ground over 1.5" ± .005"

Squareness:
Between 2 unfinished surfaces: 90° ± 1°
Between 1 finished (f) and 1 unfinished surface: 90° ± 1°
Between 2 finished surfaces: 90° ± 30'

Parallelism of Finshed (f) Parallel Surfaces:
Surfaces to be parallel to within one half the total tolerance on the dimension between the surfaces.

Concentricity Between Inside and Outside Surfaces Unfinished Surfaces:
Within 1-1/2% of nominal wall thickness F.I.R., or .010" F.I.R., whichever is greater.

Warp:
Maximum allowable warp - .011" per inch of length.

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