Blmc Tolerances; Figure 2-6: Blmc Straightness And Flatness Tolerances - Aerotech BLM Series Hardware Manual

BLM

2.6.3. BLMC Tolerances

With the forcer aligned as in
either side of the forcer. The straightness can deviate left or right ±0.38 mm (0.015 in) from the
centerline. For example, a deviation can result in an 0.38 mm (0.015 in) air gap on one side and 1.14
mm (0.045 in) on the other side.
The nominal forcer height out of the track is 1.3 mm (0.050 in). The flatness can deviate up an
additional 0.38 mm (0.015 in) for a total of 1.65 mm (0.065 in) from the track edge to the forcer edge.
The flatness can also deviate down 0.38 mm (0.015 in) for a total of 0.89 mm (0.035 in) from the track
edge to the forcer edge.
Figure 2-6: BLMC Straightness and Flatness Tolerances
48
Figure 2-6, the air gap in the magnet track is 0.76 mm (0.030 in) on
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