Harmonic Drive CSF-2A and CSF-2A-LW Component Sets
Harmonic Drive CSF-2A and CSF-2A-LW Component Sets
CSF-2A and CSF-2A-LW are cup-type strain-wave gearing component sets for integration into an OEM mechanism. The lightweight LW version reduces the gearing mass, while the customer supplies the housing, output support, motor and drive. The three-element reduction mechanism should be treated as part of a designed rotary axis, with alignment and lubrication requirements that a complete housed gear unit normally helps to contain.
Review Summary
Choose CSF-2A-LW when low moving mass and control over the surrounding structure justify designing the mechanical interfaces. Choose a complete gear unit when a supplied output-bearing arrangement and established mounting interfaces offer greater value. Compare the exact size and ratio; lightweight gearing does not establish the mass or stiffness of the completed joint.
Mechanism Wave generator, cup-shaped flexspline and circular spline Construction Component set; customer-designed housing and machine-load support Lightweight offering Current manufacturer page lists four sizes for CSF-2A-LW CSF-20-100-2A-GR 40 Nm rated L10; 82 Nm repeated peak; 147 Nm momentary peak CSF-20-100-2A-GR-LW Same listed 40 / 82 / 147 Nm torque entries for this exact size and ratio Size 20, ratio 100 mass 0.28 kg standard component set; 0.14 kg LW component set Size 20, ratio 100 positioning entries 1 arcmin standard accuracy; 4.5 Nm backdriving torque in current tables Torque terminology Rated, repeated peak and momentary peak are separate limits Drive scope No servomotor, controller or fieldbus included Price Request a quote for exact component code and integration scope Applications and Industries
Custom rotary joints, compact positioning mechanisms and mass-sensitive automation axes
Industrial automation
Request a quote for the exact configuration,quantity and delivery schedule.
| Mechanism | Wave generator, cup-shaped flexspline and circular spline |
| Construction | Component set; customer-designed housing and machine-load support |
| Lightweight offering | Current manufacturer page lists four sizes for CSF-2A-LW |
| CSF-20-100-2A-GR | 40 Nm rated L10; 82 Nm repeated peak; 147 Nm momentary peak |
| CSF-20-100-2A-GR-LW | Same listed 40 / 82 / 147 Nm torque entries for this exact size and ratio |
| Size 20, ratio 100 mass | 0.28 kg standard component set; 0.14 kg LW component set |
| Size 20, ratio 100 positioning entries | 1 arcmin standard accuracy; 4.5 Nm backdriving torque in current tables |
| Torque terminology | Rated, repeated peak and momentary peak are separate limits |
| Drive scope | No servomotor, controller or fieldbus included |
| Price | Request a quote for exact component code and integration scope |






















