Precision Direct Drive Rotary Table > Precision Mechanical Rotary Table
The MHRS75 high-rigidity precision direct drive rotary table, with its high-performance coreless torque motor and precision-tuned angular-contact sliding-friction bearing system, provides the system with control resolution up to 0.02 arc sec. The extremely low, nearly linear sliding-friction resistance guarantees micro-step incremental motion, delivering outstanding positioning capability (steady-state error) better than ±0.08 arc sec and fast settling time (steady-state time) better than 25 ms. The MHRS75 uses a segmented coreless torque motor that reduces periodic torque ripple; this precision direct drive rotary table offers resolution up to 0.001 arc sec, ultra-smooth velocity stability comparable to high-quality brushed DC motors, and excellent low-speed performance: even at extremely low speeds below 0.01°/s (36 arc sec/s), the position following error remains better than ±0.5 arc sec. The MHRS75 precision mechanical rotary table uses brushless direct drive motor technology to maximize positioning performance and dynamic response, requiring no brush replacement and no maintenance of gear trains or belts; compared with gear- or belt-driven mechanisms, direct drive also provides faster acceleration and higher response speed. The MHRS75 high-payload precision direct drive rotary table uses two large-diameter angular contact bearings; the unique wide-span design greatly reduces motion axis runout and improves system rigidity and repeatability, while the large-diameter bearings can withstand greater payloads without affecting performance.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Tabletop Diameter | 110.5 mm |
| Aperture | 75 mm |
| Height | 130 mm |
| Bi-Directional Repeatability | <1 arc secnm |
| Axial Error Motion (2) | <2 um |
| Radial Error Motion (2a) | <2 um |
| Max Speed (No Load) | 300 rpm |
| Maximum Torque (Continuous) (4) | 5.99 N-m |
| Inertia (Unloaded) | 0.022 kg-m2 |
| Load Capacity - Axial (5) | 45 kg |
| Load Capacity - Radial (5) | 30 kg |
| Total Mass | 22.6 kg |
| Traceability For Calibration | ISO230-2 or GB17421,往返5次,≥10Plot/360° |
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