Harmonic micro-gearbox CSF 11

coaxialpinion shaft0.1 - 0.2 Nm

Introduction
The CSF-mini series miniature harmonic drive is developed for applications with strict volume and weight constraints. It features a cup-style flexspline and is supplied as pre-assembled modular units for immediate integration. The main bearing uses compact four-point contact ball bearings to directly support external loads. Two configurations are available: motor-mount type (2XH) and shaft-input type (1U), the latter supporting input via belts, gears or couplings. Select the model and gear ratio that match your mechanical design and performance requirements.

Features

• Cup-style flexspline for reduced envelope and low mass
• Coaxial input and output for compact drivetrain integration
• High rotational accuracy and positioning precision with low backlash
• Pre-assembled modular form for fast installation

Specification (table)
Model | Gear Ratio | Rated torque at input 2000 r/min [N·m] | Permissible peak torque during starting and stopping [N·m] | Maximum allowable value of average load torque [N·m] | Maximum instantaneous permissible torque [N·m] | Maximum allowable input speed [r/min] | Allowable average input speed [r/min] | Gear Backlash (arcsec) | 1/4GD [kg·cm2] | Mass (kg)
CSF Series - 03 | 30 | 0.06 | 0.13 | 0.10 | 0.22 | 10000 | 6500 | ≤20 | 5.3x10-7 | 0.017
CSF Series - 03 | 50 | 0.11 | 0.21 | 0.13 | 0.41 | 10000 | 6500 | ≤20 | 5.3x10-7 | 0.017
CSF Series - 05 | 30 | 0.25 | 0.50 | 0.38 | 0.90 | 10000 | 6500 | ≤20 | 2.5x10-4 | 0.039
CSF Series - 05 | 50 | 0.40 | 0.90 | 0.53 | 1.80 | 10000 | 6500 | ≤20 | 2.5x10-4 | 0.039
CSF Series - 05 | 80 | 0.52 | 1.35 | 0.84 | 2.50 | 10000 | 6500 | ≤20 | 2.5x10-4 | 0.039
CSF Series - 08 | 30 | 0.90 | 1.80 | 1.40 | 3.30 | 8500 | 3500 | ≤20 | 3.2x10-3 | 0.106
CSF Series - 08 | 50 | 1.80 | 3.30 | 2.30 | 6.60 | 8500 | 3500 | ≤20 | 3.2x10-3 | 0.106
CSF Series - 08 | 80 | 2.20 | 4.30 | 2.90 | 8.00 | 8500 | 3500 | ≤10 | 3.2x10-3 | 0.106
CSF Series - 08 | 100 | 2.40 | 4.80 | 3.30 | 9.00 | 8500 | 3500 | ≤10 | 3.2x10-3 | 0.106
CSF Series - 11 | 30 | 2.10 | 4.10 | 3.10 | 8.20 | 8500 | 3500 | ≤20 | 1.4x10-2 | 0.20
CSF Series - 11 | 50 | 3.50 | 8.30 | 5.50 | 17.00 | 8500 | 3500 | ≤20 | 1.4x10-2 | 0.20
CSF Series - 11 | 80 | 4.50 | 10.20 | 8.50 | 22.00 | 8500 | 3500 | ≤10 | 1.4x10-2 | 0.20
CSF Series - 11 | 100 | 5.00 | 11.00 | 8.90 | 25.00 | 8500 | 3500 | ≤10 | 1.4x10-2 | 0.20

Technical specifications

• Series: CSF-mini
• Product types: Motor-mount (2XH) and shaft-input (1U)
• Flexspline: Cup-style flexspline for compact, lightweight applications
• Main bearing: Compact four-point contact ball bearings to directly support external loads
• Product form: Pre-assembled modular units for immediate use
• Supported input forms (1U): belts, gears, couplings
• Configuration: Coaxial input and output
• Performance ranges: rated torque ≈0.06–5.0 N·m; peak and instantaneous torques and permissible speeds as listed in the table
• Backlash: typically ≤20 arcsec (≤10 arcsec for certain sizes/ratios)
• Typical maximum allowable input speeds: up to 10,000 r/min depending on model