http://www.la-toupie.de/ebay/motor.htm

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- Engineman -"This motor was specially made for IBM
by ElectroCraft
From the specifications ES0543-02-012:
max terminal voltage 45V
max cont speed 4000 (no load)
max peak torque 180 oz-in (.38 Nm)
max cont stall torque 54 oz-in
max peak current 12A
max cont current 4.1 A
max winding temp 155 C