Bought 2 of these for $18 each from Herbach & Rademann and I
am only using 1. They are good motors for compact barndoors, since
they require shorter lever arms than faster rotating motors for the
proper tracking rate. Lever arm is about 3.5" for a 1/2-13 thread,
and about 2.2" for a 1/4-20. Rotation is CW facing the shaft, so
a threaded rod attached to the shaft unscrews in a threaded
receptacle as the motor runs. Motor rated at 4 Watts.
Paypal instant fund transfer is the only payment method I can
accept for this item. Price includes First Class Mail delivery in
the continental US. Other reasonable offers considered. Shipping
address must be Paypal confirmed. US addresses only, please.
Thanks for looking.