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BGM120 Goniometer, ±45° Travel Range, Micro-step drive
The BGM120PP Goniometer features a worm mounted rotary encoder for improved accuracy and repeatability. The encoder also provides a method for detecting motor stalling, an important feature for applications with high loads or torques. This PP mini-step drive version enables high angular speeds up to 20°/sec .BG Series goniometric cradles rotate on a transverse axis above the platform. Compared to full 360° rotation stages, they offer maximum free access to the rotating part and allow construction of very compact multi-axis rotation assemblies. BG cradles are designed so that orthogonal mounting of two adjacent-size cradles (e.g., BGS50 and BGS80) provides two perpendicular rotational axes intersecting at about the same point in space. Mounting a rotation stage under the assembly adds a third orthogonal rotation axis through the same point. Precision rotation is ensured by a precision ground, hardened worm gear drive. Single row ball bearings and precision ground tool-steel races ensure smooth rotation with minimal wobble and eccentricity. A home switch, conveniently located at the center of travel, facilitates the return of the platform to a level position.
Resources & Downloads
3D Product Models
2D Product Drawings
BGM120PP_Drawing(374.9 kB, PDF) ESP301 and High Friction Stepper Motor Stages(103.9 kB, PDF) BG Goniometric Cradles User Manual(2.1 MB, PDF) BG Data Sheet.pdf(3.4 MB, PDF)