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ServoBelt Rotary Stages
SKU
sbr-series
Product Details
The ServoBelt™ Rotary series offers a range of compact, high-torque motorized rotary stages, providing large through hole sizes and high speeds at a fraction of the cost of comparable direct-drive rotary tables.
Versatile Through Hole Configurations: The ServoBelt Rotary is available in various through hole sizes to suit diverse needs. Choose from large through holes measuring 50, 100, or 200 mm, ideal for accommodating extensive bundles of power, signal, and pneumatic conductors, and simplifying integration with laser and optical systems. For applications requiring fewer utilities, our standard models with 16- or 25-mm through holes provide a cost-effective solution.
High-Performance Drive: Engineered for compatibility with NEMA 23 and 34 motors, these stages deliver speeds of up to 1,000 rpm, continuous torque up to 6.6 N-m, and high precision with resolution as fine as 0.16 arc-sec, utilizing Renishaw ring encoders or tape scales for partial rotations.
Flexible Applications: Perfect for both continuous rotation and variable indexing tasks, ServoBelt Rotary stages adapt to a wide range of applications.
Durable and Maintenance-Free: Featuring robust, lubed-for-life bearings with large full duplex, angular contact bearings, these stages boast moment and load capacities well beyond typical requirements, ensuring an extended bearing life under virtually any condition.
Cost Efficiency: Offering great value, the ServoBelt Rotary stages are ideal for medium-duty rotary motion tasks, including driving carousel tables in packaging and assembly lines, and adding fourth-axis motion in laser cutting and mini CNC machines.
Customized Solutions: Beyond individual stages, we offer comprehensive solutions like gantry-mounted electromechanical assemblies and cartesian robots with extended travel lengths. Our turnkey systems are designed to optimize space, motion control, and integration according to your specific requirements.
SBR Technical Specifications
Technical Specifications |
SBR-16-31 |
SBR-50-31 |
SBR-25-51 |
SBR-100-51 |
SBR-200 |
| Type | NEMA 23 3:1 Belt Drive Rotary | NEMA 23 5:1 Belt Drive Rotary | NEMA 23 or 34 11:1 Belt Drive Rotary | ||
| Bearing Type | Preloaded duplex angular contact | ||||
| Stage Diameter/Height (mm) | 100/50 | 100/54 | 165/54 | 165/60.6 | 275/69.2 |
| Through Hole | 16.0 mm (0.63 in.) | 50.8 mm (2.00 in.) | 25.4 mm (1.00 in.) | 101.6 mm (4.00 in.) | 203.2 mm (8.00 in.) |
| Accuracy (±arc-sec) Deviation from commanded angle. |
16KCPR: 90 Ring: 36 |
16KCPR: 75 Ring: 48 |
16KCPR: 60 Ring: 66 |
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| Kinematic Wobble (±arc-sec) Tilt of rotary axis irrespective of table flatness or physical run-out of table top. |
8 | 16 | 10 | ||
| Kinematic Radial Run-out (µm TIR) In-plane wander of rotational centerline irrespective of table roundness or physical run-out of table top OD. |
13 | 20 | 30 | ||
| Table Top Parallelism to Base (µm TIR) Total indicated worst-case parallelism top to bottom. |
80 | 80 | 125 | ||
| Bi-Directional Repeatability (±arc-sec) With motor encoder versions only, assumes 0.2 degrees lost motion at pinion, divided by ratio. |
16KCPR: 120 Ring: Control Dependent, 1 count possible |
16KCPR: 40 Ring: Control Dependent, 1 count possible |
16KCPR: 100 Ring: Control Dependent, 1 count possible |
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| Uni-Directional Repeatability (±arc-sec) Angular conversion of 10µm at bull gear radius. |
16KCPR: 30 Ring: Control Dependent, 1 count possible |
16KCPR: 12 Ring: Control Dependent, 1 count possible |
16KCPR: 15 Ring: Control Dependent, 1 count possible |
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| Resolution Choices | 16k @ motor Ring: 1μm, 0.5μm, 0.2μm, 0.1μm (100mm ring) |
16k @ motor Ring: 1μm, 0.5μm, 0.2μm, 0.1μm (150mm ring) |
16k @ motor Ring: 1μm, 0.5μm, 0.2μm, 0.1μm (225mm ring) |
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| Table Resolution (KCPR) Measured in thousands of pulses per revolution of the table (KCPR). |
16KCPR: 48 Ring: 314.9, 629.8, 1574, 3149 |
16KCPR: 80 Ring: 472, 944, 236, 4720 |
16KCPR: 176 Ring: 800, 1600, 4000, 8000 |
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| Speed Limit (rpm)> Note that maximum speed for ring encoder units decreases as resolution increases. |
16KCPR: 1300 Ring: 1300-134 |
16KCPR: 800 Ring: 764-66 |
16KCPR: 360 Ring: 374-52 |
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| Continuous Torque, N-m (motor) RMS torque allowed at table. Assume peak torque to be 3 times RMS torque for no longer than 3 seconds. |
1.3(-1), 2.4(-2), 3.0(-3), 4.0(-4) | 2.1(-1), 4.1(-2), 5.4(-3), 6.6(-4) | NEMA 23: 9.0(-2), 11.9(-3), 14.5(-4) NEMA 34: 20.0(-2), 30.0(-3), 38.0(-4) |
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| Load Capacity Axial/Radial (kN) Load capacity are for L10 rating life of 1 million table revolutions. Load capacity is not equivalent to payload. The ability to servo control a given payload is dependent on inertia, motion profile, duty cycle and control architecture. |
14.0/26.0 | 7.0/4.0 | 48.0/39.0 | 14.0/8.0 | 21.0/12.0 |
| Max. Moment (N-m) Moment loads are for L10 rating life of 1 million table revolutions. |
480 | 120 | 1150 | 434 | 1050 |
| Rotational Inertia (kg-m2) Rotational inertia of table. |
16KCPR: 0.00048 Ring: 0.00093 |
16KCPR: 0.00051 Ring: 0.00096 |
16KCPR: 0.0033 Ring: 0.0050 |
16KCPR: 0.0060 Ring: 0.0070 |
16KCPR: 0.0037 Ring: 0.0046 |
| Stage Weight (kg, less motor) | 1.55 | 1.32 | 3.2 | 2.8 | 7.5 |
Compact, high-torque motorized rotary stages with large through holes and high speeds. Ideal for diverse applications, ensuring durability and cost-efficiency.
Sample image only. Product may differ
