Item # DSAC200-20-16, Helical DS Series Aluminum Couplings On Japanese Products Corp.

High torsional stiffness
Low radial loads
Parallel misalignment capability
Low inertia

The DS Series was designed for today's high performance motion control systems. This Series incor porates two helical beams in each of two separate HELI-CAL Flexures, combining greater end-to-end rotational accuracy with radial flexi bility in one design. Available only with integral clamp attachments, the DS Series provides the high torsional stiffness and low inertia necessary for positioning devices, servo motors and lead screws.

The DS Series also provides you with substantial .010-inch parallel offset capability, reducing the need for high-precision alignment during assembly operations. It's your ticket to greater system accuracy and reliability. Available only in 7075-T6 aluminum.

Unit of Measure

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Specifications

Product Type	N/A Coupling
Series	N/A DSAC
Material	N/A 7075-T6 Aluminum Alloy
Finish	N/A Clear Anodize
Outside Diameter Designator	N/A 200
Outside Diameter (D)	N/A 2 in
Length (L)	N/A 2.50 in
Size (+0.002 in/-0.000 in)	N/A 0.625 in15.88 mm
Bore Designator	N/A 20
Momentary Dynamic Torque	N/A 215 lb·in
Torsional Rate	N/A 0.020
Inertia¹	N/A 9.5 x 10^-5 lb.in.sec²
Screw Size²	N/A 1/4 - 20
Seating Torque	N/A 120 lb·in
Center Line	N/A 0.26 in
Min. Size	N/A 0.500 in12.70 mm
Max. Size	N/A 0.750 in19.05 mm
Max. Bore Diameter	N/A 1.280 in32.50 mm
Bore Depth	N/A 0.68 in17.27 mm
Features	N/A High torsional stiffness Low radial loads Parallel misalignment capability Low inertia The DS Series was designed for today's high performance motion control systems. This Series incorporates two helical beams in each of two separate HEU-CAL Flexures, combining greater end-to-end rotational accuracy with radial flexibility in one design. Available only with integral clamp attachments, the DS Series provides the high torsional stiffness and low inertia necessary for positioning devices, servo motors and lead screws. The DS Series also provides you with substantial 0.010-inch parallel offset capability, reducing the need for high-precision alignment during assembly operations. It's your ticket to greater system accuracy and reliability. Available only in 7075-T6 aluminum.
Note	N/A Shaft misalignments: Angular 3 degrees Parallel Offset 0.010 in. Axial Motion: ±0.008 in. Manufacturing dimensional tolerances unless otherwise specified are: fraction ± 1/64 x.xx ± .01 in.