Disc coupling Servoflex SFC SA2

compactaluminumfor servo motors

Overview
The Single Flex SA2 version of the Servoflex SFC series is a lamella (disc) coupling designed for very high torsional stiffness while providing axial, angular and parallel misalignment compensation. Hubs are made from a high‑strength aluminium alloy to minimize mass moment of inertia, making the coupling suitable for servo drives and dynamic applications.

Features

• Hubs made from high‑strength aluminium alloy
• Very low moment of inertia
• High torsional stiffness
• Axial, angular and parallel misalignment compensation
• RoHS compliant
• Torque range: 0.25 to 250 Nm (model dependent)
• 3D CAD data available for individual models

Technical data — summary

• Torque range: 0.25–250 Nm depending on model
• Torsional stiffness: from approx. 190 Nm/rad up to values in the 100,000s Nm/rad depending on size
• Moment of inertia: approx. 0.06×10^-6 kg·m^2 up to approx. 1891×10^-6 kg·m^2 across the range
• Maximum speeds: model dependent (examples: 10,000–140,000 min^-1)
• Misalignment limits: see model data for parallel, angular and axial limits

Dimensions (selected examples)
Detailed dimensions are available per model in the full datasheet and 3D files. Representative examples: SFC-002SA2 — d1 3–5 mm, D 12 mm, L 12.35 mm, mass 0.003 kg; SFC-100SA2 — d1 32–45 mm, D 104 mm, L 69.8 mm, mass 1.202 kg. Contact for complete dimension tables and model selection.

Applications / Industries

• Machine tools
• Servomotor, robotics and handling automation
• Mechanical engineering and special machines

Specifications

• Series: Servoflex SFC SA2
• Material: hubs from high‑strength aluminium alloy
• Torque range: 0.25–250 Nm (model dependent)
• High torsional stiffness with low inertia — optimized for servo drives
• Misalignment capability: axial, angular and parallel compensation (model dependent)
• Max. rotational speed: see model data
• RoHS compliant
• 3D CAD files available for individual models