SPEED IS 5400 RPM AT 12 VOLTS....PERFECT FOR HIGH GEARED LOCOS

SPEED IS 3000 RPM AT 6 VOLTS

VOLTAGE IS 1.5V - 12V

SHAFT DIAMETER IS 2MM....A VERY COMMON SIZE

SHAFT LENGTH FRONT END IS 19MM

SHAFT LENGTH BACK END IS 9MM

OVERALL LENGTH TIP OF SHAFT TO TIP OF SHAFT 55MM

THE PHOTO OF THE INSTALLED MOTOR IS OF AN HO BRASS AKANE 4-6-2 WHICH IS TOO HIGH GEARED AND THIS MOTOR SLOWS THE OVERALL SPEED WAY DOWN.  IT RUNS LIKE A DREAM, SMOOTH, SLOW AND VERY REALISTIC.

 IF YOU INSTALL THE FLYWHEEL ON THE REAR YOU DON'T NEED TO PRESS IT ON WITH A PRESS OR USE ANY THREAD LOCKER AS THE PLASTIC INSERT YOU SEE IN THE PHOTOS TAKES A FIRM GRIP ON THE SHAFT AND YOU CAN REMOVE IT EASILY IF YOU WANT.

I'M STARTING TO PUT THESE IN MY OLD BRASS ENGINES AND THEY WORK GREAT.  THEY EVEN PUSH AN OLD HEAVY EARLY MANTUA 2-8-2 WITH A CAST TENDER AND CONSIST VERY WELL.

THE MOTOR HAS A VARISTER IN IT AND CAN GENERATE ENOUGH POWER TO LIGHT AN LED IF YOU WANTED TO USE THE MOTOR IN THAT WAY.  MYSELF,  I'M INTERESTED IN POWERING HO/Sn3 LOCOS.

Check my other listing for an example of usage with just the motor at $8.99 WILL SHIP WORLDWIDE Here are some additional measurements that have been requested....The motor across the flats is 14.92mm wide, across the flats in the area of the yellow hookups is 16.85mm and the diameter of the motor in the rounded area is 19.82mm.........The flywheel is 15.77mm in diameter and the length is 16.88mm.....I have installed this motor/flywheel installation in Akane 4-6-2, Akane 2-8-2, United 4-6-2 Southern Railway various Mantua 4-6-2's and 2-8-2's (with gearbox) and a couple that don't come to me right now. It's been a little tight on a couple but for a "130" size motor is fairly narrow and that's good. Good low RPM topend and good torque.