Compare Model Drawings, CAD & Specs Minimum Incremental Motion Maximum Speed Platform Size Load Capacity Availability Price
$9,916
6 Weeks
BGM120CC 2.0 mdeg 20°/s 120 x 99 mm 200 N
6 Weeks
$9,916
$10,246
6 Weeks
BGM120PE 2.0 mdeg 2°/s 120 x 99 mm 200 N
6 Weeks
$10,246
$15,910
6 Weeks
BGM120PEBV6 2.0 mdeg 2°/s 120 x 99 mm 200 N
6 Weeks
$15,910
$9,809
BGM120PP 2.0 mdeg 20°/s 120 x 99 mm 200 N $9,809
bg series motorized goniometric cradles with 3 goniometer stages shown
$16,884
BGM160CC 2.0 mdeg 20°/s 160 x 130 mm 300 N $16,884
bg series motorized goniometric cradles with 3 goniometer stages shown
$17,077
BGM160PE 2.0 mdeg 2°/s 160 x 130 mm 300 N $17,077
bg series motorized goniometric cradles with 3 goniometer stages shown
$24,765
BGM160PEBV6 2.0 mdeg 2°/s 160 x 130 mm 300 N $24,765
bg series motorized goniometric cradles with 3 goniometer stages shown
$16,186
BGM160PP 2.0 mdeg 20°/s 160 x 130 mm 300 N $16,186
bg series motorized goniometric cradles with 3 goniometer stages shown
$20,439
BGM200CC 2.0 mdeg 20°/s 200 x 200 mm 500 N $20,439
bg series motorized goniometric cradles with 3 goniometer stages shown
$20,365
BGM200PE 2.0 mdeg 2°/s 200 x 200 mm 500 N $20,365
bg series motorized goniometric cradles with 3 goniometer stages shown
$20,227
BGM200PP 2.0 mdeg 20°/s 200 x 200 mm 500 N $20,227
$4,674
In Stock
BGS50CC 0.50 mdeg 10°/s 50 x 50 mm 20 N
In Stock
$4,674
$4,408
In Stock
BGS50PP 0.20 mdeg 4°/s 50 x 50 mm 20 N
In Stock
$4,408
$6,042
In Stock
BGS80CC 0.50 mdeg 20°/s 80 x ? mm 60 N
In Stock
$6,042
$5,512
In Stock
BGS80PP 0.20 mdeg 20°/s 80 x ? mm 60 N
In Stock
$5,512
$9,916
6 Weeks
M-BGM120CC 2.0 mdeg 20°/s 120 x 99 mm 200 N
6 Weeks
$9,916
$10,451
6 Weeks
M-BGM120PE 2.0 mdeg 2°/s 120 x 99 mm 200 N
6 Weeks
$10,451
$14,625
M-BGM120PEBV6 2.0 mdeg 2°/s 120 x 99 mm 200 N $14,625
$9,809
M-BGM120PP 2.0 mdeg 20°/s 120 x 99 mm 200 N $9,809
bg series motorized goniometric cradles with 3 goniometer stages shown
$16,552
M-BGM160CC 2.0 mdeg 20°/s 160 x 130 mm 300 N $16,552
bg series motorized goniometric cradles with 3 goniometer stages shown
$17,419
M-BGM160PE 2.0 mdeg 2°/s 160 x 130 mm 300 N $17,419
bg series motorized goniometric cradles with 3 goniometer stages shown
$24,375
M-BGM160PEBV6 2.0 mdeg 2°/s 160 x 130 mm 300 N $24,375
bg series motorized goniometric cradles with 3 goniometer stages shown
$16,186
M-BGM160PP 2.0 mdeg 20°/s 160 x 130 mm 300 N $16,186
bg series motorized goniometric cradles with 3 goniometer stages shown
$20,848
M-BGM200CC 2.0 mdeg 20°/s 200 x 200 mm 500 N $20,848
bg series motorized goniometric cradles with 3 goniometer stages shown
$20,365
In Stock
M-BGM200PE 2.0 mdeg 2°/s 200 x 200 mm 500 N
In Stock
$20,365
bg series motorized goniometric cradles with 3 goniometer stages shown
$20,227
M-BGM200PP 2.0 mdeg 20°/s 200 x 200 mm 500 N $20,227

M- versions have metric threads. V6 versions are vacuum compatible.


Specifications

Note: Specifications below are common to all products presented. See Individual product details for complete information.

  • Stage Type
    Motorized Goniometer
  • Angular Range
    -45 to +45° (-30 to +30° - BGS50 versions)
  • Graduations
  • Origin
    Optical, at 0°
  • Cable Length
    3 m


Features

Open Rotation Platform

The BGS series stages provide up to ±45° of transverse axis rotation enforced with mechanical limit switches. The stage is designed for maximum free access to the rotating platform, allowing for simplified stacking and mounting.

Precision Worm Gear Drive

Precise rotation is ensured by a precision ground, hardened worm gear drive. In addition to being non-backdrivable, the worm gear drive's advantages include higher MIM, repeatability, and overall accuracy.

Direct Mounting Interface

BG cradles are designed so that two adjacent-sized models mounted orthogonally, such as BGS80 with BGM120, pivot about the same point in space. For a third rotation axis, yaw for example, a rotation stage can be mounted under the assembly. The direct mounting capability saves set-up time, design time, and adapter plate costs.

Ball Bearings with Tool-Steel Races

Single-row ball bearings and precision-ground, hardened tool-steel races ensure smooth rotation with minimal wobble and eccentricity. This allows for higher load capacities, stiffness, and stability.

Performance DC Motor and Encoder Versions

The BG cradles are available in DC motor versions, which results in higher torque and repeatability. All encoders come with index pulses for precision homing. The BGS50CC uses a miniature DC servo motor, kept in a compact, lightweight package. All other models feature a high resolution, worm mounted rotary encoder which bypasses most drive train errors, resulting in improved bi-directional repeatability. The BGM models use high torque DC motors with a built-in tachometer to provide superior speed stability.

Stepper Motor Versions

The PP mini-step drive version are for applications that require higher speeds. For higher torque and vacuum applications, the PE full-step drive version is recommended.

Goniometric Cradle Load Characteristics