New Aerotech Precision Rotary Stage 360° 2.54 Arc Sec Tabletop ARS-301 ARS301-UF

Description

4298SD3G.2.47
New Aerotech Precision Manual Rotary Stages, 360° Rotation, 2.54 Arc Second Thimble Graduation, With ARS301TT Tabletop, Part Number ARS301-UF.  Each bid quantity is for One (1) Rotary Stage.  You may bid / buy any number, up to the total quantity available above.
These were purchased at an unclaimed freight liquidation earlier this year, and they are brand new in the original factory plastic sleeves with matching serial numbers.  We do not know what the "UF" suffix of the part number represents.  A drawing from the manufacturer's datasheet with dimensions of the ARS301 is shown in Picture #12.
According to the manufacturer
:
ARS301 Series
Mechanical Bearing Manual Rotary Stage
360° rotation
Excellent thermal stability
Patented sub-arc-second resolution drive
The ARS301 stage is a precise rotary positioner featuring Aerotech’s patented sub-arc-second resolution drive mechanism. By depressing the release plunger, the rotary ring of the ARS301 can be quickly positioned to the approximate desired angle. It can then be fine-tuned with either the coarse or fine adjustment knob over a range of 10 degrees or 30 minutes, respectively. The fine thimble has a 32-division reference scale for convenience in positioning. An engraved dial with a six-minute vernier is standard on all tabletops. Due to the absence of any gearing in the ARS301’s drive mechanism, the stage is backlash free.
The ARS301 has a 68 mm (2.68 in) clear aperture. If a solid mounting surface is required, the ARS301 is available with English or metric mounting holes. The ARS301 is made of aluminum with a black anodized finish and weighs 1.36 kg (3 lb).
ARS301
Thimble Graduation 2.54 arc second
Max Load Horizontal 11.36 kg (25 lb), Vertical 6.82 kg (15 lb)
360° Dial and 6 Minute Vernier Standard
Clear Aperture 68.07 mm (2.68 in)
Stage Mass 1 kg (2.2 lb)