SHA CG Actuator
High torque, hollow shaft servo actuators with direct drive motor performance in an extremely compact size. The SHA-CG offers superior rotary positioning accuracy and an output flange with a surface run-out less than 10 microns. The SHA-CG actuators feature a compact, hollow shaft configuration for design versatility in demanding applications. Ideal for machine tool applications, the SHA Series of brushless actuators provide high torque for fast acceleration and positioning. SHA-CG actuators are composed of a Harmonic Drive® CSG zero-backlash gear combined with a brushless servomotor with an encoder resolution at the output up to 20,971,520 pulse/rev. The actuators are also available with an optional brake. Positional accuracy better than 1 arc-min and repeatability better than ±5 arc-sec is achieved while delivering up to 3,400 N m of torque. A robust cross-roller bearing allows mounting of large loads directly to the actuator without the need for additional support. The SHA-CG has a Torque to Weight ratio as much as 8 times greater than comparable housed direct drive motors, and a Torque to Volume ratio as much as 6 times greater. This allows for a more compact and light-weight machine design. SHA-CG Specifications: High Accuracy: Zero-backlash Harmonic Drive® gear reducer Hollow Shaft diameter: 17-45mm Available in 4 sizes, 20, 25, 32, 40 Maximum speed up to 120 rpm Design: Compact, flat, hollow shaft Known for its expert engineering and manufacturing, Harmonic Drive LLC products are relied upon every day throughout the manufacturing community. APPLICATIONS for Harmonic Drive products: Machine Tool: Milling Head, Tool Changer, Rotary Table, Grinding, B & C Axis Robotics: Industrial, Semiconductor & Flat Panel, Humanoid, Mobile Robots Energy: oil exploration, drilling and positioning, wind power, solar Defense: Unmanned Vehicles, Remote Weapon Stations, Antenna Pointing Medical: Surgical Robots, Medical Imaging, Therapeutic, Prosthetics, Exoskeletons, Lab Automation Aerospace: Solar Array Drives, Antenna Pointing, Valve Actuators, Lunar and Interplanetary Rovers
Key Specifications
Variant configuration | SHA-CG mechanical variant explicitly compared in updated SHA family review |
Applications and Industries
Industrial machine and automation integration
Industrial automation
Review Summary
SHA is a candidate for compact rotary machinery where a central passage and an integrated motor-and-gear arrangement reduce mechanical selection work. Its practical value depends on the exact output load, mounting accuracy and amplifier interface. Treat the mechanical series and drive-specific ordering version as separate parts of the selection.
Price and Configuration
Request a quote for the selected configuration,quantity and delivery schedule. Confirm the exact model,options,integration scope and support terms.
