Splint, This is what I have, I would think that the motors you have are close to one of these.
Electro-Craft DC Motor 0504-01-031 0540-04-032 0542-03-500
Cont. stall torque (oz-in) 32 32 50
Peak Torque(oz-in) 240 240 350
Max. voltage (V) 60 60 60
Max speed (rpm) 6000 4200 6000
Mechanical
oz-in-sec2 0.0038 0.0038 0.0062
kt Torque constant 9.6 19.2 11.8
Ke Voltage Constant 7.1 14.2 8.6
Winding resistance (OHM) RA 1.23 4.98 1.04
Max pulse current (A) 24 12 29
Armature Induct. (mH) 3.0 12 3.3
Body Length(inch) 4.0 4.0 5.0
Al
The spacing did not come out right on the posting, hopefully you can decifer.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.