Comparison between Linear and Rotary Motors

	Aerotech DC linear BLMX-502	Kollmorgen DC rotary B-808C	WEG AC rotary 404TS Frame
Force (N)	4744	5064	4930
Theoret. Acc (G)	109	156	24
Cost	2 x $5200	2 x $6100	2 x $4900
Amps pk-pk (=> ampl. size)	100 A	190 A	230 A
Data Sheets	BLMX Series	Kollmorgem	100 HP
Gearing Ratio (rad/m)	N/A	12	5

These values are calculated with the aid of the Rotary Calculator.

A pinion inertia of .05 kg-m^2 was added to the Kollmorgen's .017 kg-m^2 inertia, but no equivalent rack mass. A pinion intertia of .03 kg-m^2 was added to the WEG's .825 kg-m^2 inertia, but no equivalent rack mass. On the WEG data sheet, the inertia has no units label, but is in lbm-ft^2.