Available Options
The M-BGM120PEBV6 Metric 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. The PE full-step version with a reduction gear provides a higher torque and is recommended for high inertia payloads and vacuum applications. 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.
Due to the various feed-through configurations and preferences of customers, the cable supplied with the stage is not vacuum compatible.
Can be ordered with a vacuum compatible 25pin SubD connector.
feature | |
Accuracy, Typical | ±25 mdeg |
Angular Range | -45 to +45° |
Axial Stiffness | 10 N/µm |
Bi-directional Repeatability (Typical) | ±12 mdeg |
Cable Length | 3 m |
Centered Load Capacity | 200 N |
Connectors | DB25M |
Encoder Resolution | 0.001° |
Limit Switches | Mechanical, at ±45° |
Maximum Speed | 2°/s |
Maximum Torque | 10 Nm |
Minimum Incremental Motion | 2.0 mdeg |
MTBF | 20,000 h (25% load, 10% duty cycle) |
Origin | Optical, centered |
Origin Repeatability | ±2.5 mdeg |
RoHS | Compliant |
Thread Type | M6 |
Transversal Compliance | 10 µrad/Nm |
Travel Range | 120 mm |
Uni-directional Repeatability (Typical) | ±2.0 mdeg |
Vacuum Compatibility | 10-6 hPa |
Weight | 8.5 kg |
Wobble, Typical | ±100 µrad |