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From precision applications under a meter to transfer robots over 50 meters, ServoBelt™ Linear actuators offer a new approach to belt drives, reducing positioning errors and speed limitations.
Key Features:
High Performance, Low Cost: Speeds up to 4 m/s, accuracy to ± 4 µm per meter, and bi-directional repeatability of ± 1 encoder count.
Limitless Scalability: Engineered for travel distances up to 50 meters using Bosch-Rexroth T-slot extrusions, ideal for large-format motion systems.
Multiple Carriages and Axes: Supports multiple, independently-controlled carriages on a single axis for complex motion control tasks.
Operating Principles:
ServoBelt Linear uses a unique dual-belt system with a static gear set molded into the chassis and an active steel-reinforced belt. A motorized pinion in the moving carriage interacts with both sets to move the carriage.
Drive Styles:
Standard Drive
The active belt runs the length of the axis, traveling over the drive pinion and idler rollers.
LoopTrack Drive
Features a shorter drive belt looped within the carriage, avoiding belt sag and supporting multiple carriages on the same axis.
Applications:
Cartesian Robots: Custom EOAT and advanced sensing for efficient machine tending and transfer operations.
Gantry Systems: Suitable for small lab systems to large packaging lines, offering high performance at a lower cost.
Long Travel Linear Motion: Supports travel lengths over 50 meters with the ability to perform multiple independent operations on a single axis.
Technical Specifications:
Technical Specifications
Light Duty
Medium Duty
Heavy Duty
Type
Rotary Drive Linear, NEMA 23 or user motor
Rotary Drive Linear, NEMA 23, 34 or user motor
Rotary Drive Linear, NEMA 34 or user motor
Maximum Linear Force (lbs) Recommended | Ultimate
50 | 100
100 | 200
500 | 1000
Linear Travel Per pinion revolution time (mm) | Pitch Diameter
75 | 0.940
200 | 2.506
Bearing Type
Preloaded 4-row recirculating ball, standard or corrosion resistant
Maximum Length
5.5 m with single-piece chassis. Virtually limitless travel distances with chassis splices.
Motor Type
3-phase brushless servo or user supplied of any type
Uni-Directional Repeatability (µm) Achievable under ideal conditions.
±10.0
±15.0
Bi-Directional Repeatability (µm)
±25 to ±125 depending on deceleration profile
±80 to ±130 depending on deceleration profile
Angular Deviation (±arc-sec) Yaw angle maximum in the plane of the base. Most chassis are flexible enough that this value is generally the achievable number when the unit is straightened on user surface.
±20
Encoder Type and Resolutions: Linear (μm), Rotary (CPR) (µm)
16 KCPR (NEMA 23) rotary motor encoder; 1 μm magnetic linear; 1 μm, 0.5 μm, 0.2 μm, 0.1 μm optical linear
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