small, high torque motor

[GVMOGUL]

My electrical supply couldn't come up with anything on this one. I found a 24V DC brushless, 100-2500 RPM, 1/25 HP, 15:1 gearmotor from Oriental. The great thing about it is the 20 mm distance of the output shaft centerline to the edge of the gearmotor. I'm trying to do away with a belt drive, so the 20 mm dimension allows me the clearance to do that. The next biggest motor I find has 30 mm from the shaft centerline to edge of case and that's way too much. The problem is, my existing machine uses a 1/8 HP motor, so I would feel more comfortable with a little more power. Maybe someone knows of a source for longer gearmotors.

 

[waross]

How about a shaft extension?

Bill
--------------------
"Why not the best?"
Jimmy Carter

 

[GVMOGUL]

Yes, that configuration would provide the clearance. But the complications due to the length necessary would be about as bad as staying with a belt. I'm thinking that I should probably look a little bit at right angle gearheads, too. The ideal would be a longer motor, which might be hard to find.

 

[itsmoked]

Often a "slightly bigger motor" leads to a 'fully broken machine'..

Keith Cress
kcress -

http://www.flaminsystems.com

 

[waross]

Been there, done that, Keith. I changed a 20 HP for a 25 HP, (with a much greater stall torque) and the next time it jammed, it broke instead of stalling. Shut the plant down for three shifts of production, and then took Saturday and Sunday to effect repairs. The damage was done to the end of a conveyor that extended into an old "Bee-Hive" burner and it took until Saturday morning to put the fire out before repairs could be started.
My wage as head of the electrical department was less than $4.00 an hour. Mill down-time in excess of 20 minutes per shift was reckoned at $50.00 per hour.
All I ever heard: A week or so later, my supervisor said;
"I kind of wish that you hadn't changed that motor."
But they beefed up the conveyor and left the motor.

Bill
--------------------
"Why not the best?"
Jimmy Carter