In article ,
Bart D. Hull wrote:
Johan,

[ ... ]

Servalite's number is 1-800-447-6760. Only interesting note is that the
brushes come in packs of 5. Hmmmm everything I've wanted to put brushes
in needs 2. Is this like the hot dog bun packaging vs hot dog packaging
conspiracy? ;-)

Well ... some DC servo motors (with tach feedback) have four
brushes, two for the motor and two for the tach generator feedback.
This allows you to drop, crush, or otherwise lose or destroy one and
still have enough for the job. And if your machine uses five servos (X,
Y, Z, rotary table, and knee lift perhaps?) four packs will do the job,
baring damage to one of the brushes. :-)

Enjoy,
DoN.

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