hmmmm my google search failed . . .
since you have the motor, you can always run tests on it.
for example, to determine full load current, get out some plyers and hold the shaft still while measuring current on a lab bench power supply.
or by putting weights on the plyers you can determine full load torque.
voltage on that motor is probably between 6V and 12V, and should probably be written on the motor. if the motor overheats, you are applying too much voltage.