figNoggle Designs: Variable Frequency Drive Or Variable DC Controlled Motor?

Variable Frequency Drive Or Variable DC Controlled Motor? · Jan 2, 11:18

After having to constantly change belts, it’s now time to look into replacing the stock setup with a VFD arrangement or a variable speed DC controller and matched motor.

We’re looking into SurplusCenter.com’s basemount di-directional (CW/clockwise and CCW/counterclockwise) DC motors:

http://surpluscenter.com/item.asp?item=10-1723
$89.95
New, PACIFIC SCIENTIFIC catalog number SR3644-4963-7-1. Permanent magnet DC motor with brushes. Originally made for use in treadmills. Dual shafts.
SPECIFICATIONS
HP 1-1/2
111 VDC
7.6 Amps
3,100 RPM
Rotation reversible
Duty: treadmill (2-4 hrs. under full load) Four bolt base mount on 3” x 5” centers
Shafts 5/8” dia. x 2-1/2” w/keyway
Size 13” x 4-3/4” x 5-3/4”
Shpg. 30 lbs

http://surpluscenter.com/item.asp?item=10-1906
$79.95
130 VDC 2.0 HP MOTOR
New, IMAGE model 4632D-1A permanent magnet motor. Dual output shafts.

SPECIFICATIONS2.0 Hp
130 VDC
Draws 15 Amps
3,210 RPM
Continuous duty
OFC enclosure
Reversible rotation Two shafts 1: 5/8” dia. x 1”, smooth 2: 5/8” dia. x 1-5/16” w/ 1/2”-13 L.H. threaded end
Four bolt base mount on 2-3/4” x 4-1/4” centers
Size 8” x 7” x 7”
Shpg. 24 lbs.

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