# Harmonic Drive SHF-25-100-2A-GR Silk-Hat Component Set

Benchmark size-25 100:1 standard-torque silk-hat (hat-type) component set with large hollow bore; 0.48 kg.

- Maglev ID: ac-harmonicdrive-shf-25-100-2a-gr
- Brand: Harmonic Drive
- MPN: SHF-25-100-2A-GR
- Category: actuators / Strain-Wave (Harmonic) Reducers
- Origin: JP (maker HQ, factory not confirmed)
- Maker: Harmonic Drive LLC / Harmonic Drive Systems (brand, JP)
- NDAA: unknown · Blue UAS: unknown · FCC: n/a
- HTS: 8483.40.50.10
- MOQ: unknown · Lead time: unknown
- Confidence: VERIFIED

## Price
- No public price. Request a quote via POST /api/rfq or the order pad.

## Specifications
- Ratio: 100:1
- Rated torque: 67 N·m at 2,000 rpm input
- Peak torque (repeated / momentary): 157 N·m repeated (start/stop) / 284 N·m momentary
- Backlash: Zero backlash (maker claim; no arcsec figure published)
- Outer diameter: unknown
- Hollow shaft: yes (silk-hat, large hollow bore)

## Links
- Product: https://www.harmonicdrive.net/products/component-sets/silk-hat/shf-2a
- Datasheet: https://www.harmonicdrive.net/_hd/content/documents1/SHG-SHF_Component.pdf
- CAD: none

## Equivalents
- KOFON KB-HO-25-100 Hollow Hat-Type Strain-Wave Reducer (ac-kofon-kb-ho-25-100)

## Sources
- https://www.harmonicdrive.net/products/component-sets/silk-hat/shf-2a (SHF-2A table: SHF-25-100-2A-GR torques, mass)