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Sorry, this product is no longer offered for sale. The recommended replacement product is BGM120BPP.
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.
Specifications
- Angular Range-45 to +45°
- Centered Load Capacity200 N
- Minimum Incremental Motion2.0 mdeg
- Maximum Speed20°/s
- Maximum Torque6 Nm
- Wobble, Typical±100 µrad
- Accuracy, Typical±25 mdeg
- Uni-directional Repeatability (Typical)±2.0 mdeg
- Bi-directional Repeatability (Typical)±12 mdeg
- Transversal Compliance10 µrad/Nm
- OriginOptical, centered
- Origin Repeatability±2.5 mdeg
- FeedbackWorm mounted rotary encoder with index pulse, 2,000 cts/rev
- Encoder Resolution0.001°
- Limit SwitchesMechanical, at ± 45°
- ConnectorsDB25M
- Cable Length3 m
- Weight8.5 kg
- Thread Type1/4-20
- MTBF20,000 h (25% load, 10% duty cycle)
- RoHSCompliant
Resources & Downloads
3D Product Models
2D Product Drawings
BGM120PP_Drawing(374.9 kB, PDF)
Technical Notes
ESP301 and High Friction Stepper Motor Stages(103.9 kB, PDF)
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