# Leadshine FM2-08523KTN256 Frameless Motor

![Leadshine FM2-08523KTN256 Frameless Motor](https://trymaglev.com/parts/img/mo-leadshine-fm2-08523.webp)

Largest FM2 store size: 85 mm, 23 mm stack, 10.8 Nm peak for humanoid hip and knee joints.

- Maglev ID: mo-leadshine-fm2-08523
- Brand: Leadshine
- MPN: FM2-08523KTN256
- Category: motors / Frameless BLDC Torque Motors
- Origin: CN (maker HQ, factory not confirmed)
- Maker: Leadshine Technology (雷赛智能) (brand, CN)
- NDAA: unknown · Blue UAS: unknown · FCC: n/a
- HTS: 8501.31.40.00 (typical)
- MOQ: 1 · Lead time: 1-2 weeks for shipment after order confirmation (store page)
- Confidence: VERIFIED

## Price
- 1+: $239 (list, 2026-11-03, https://store.leadshine.com/products/fm2-08523-frameless-motor; USD 239.00 (sale; regular USD 249.00))

## Specifications
- Peak torque: 10.8 Nm
- Continuous torque: 2.9 Nm rated (store page; FM2 catalog table lists 2.56 Nm)
- Outer diameter: 85 mm (catalog outline Φ85 x 34 mm)
- Axial length: 34 mm (catalog outline)
- Voltage: 48 V DC link (catalog 24-70 V)
- Mass: 500 g
- Stator core length: 23 mm
- Rotor inner diameter: 58.5 mm (Ø58.5 +0.046/0, rotor bore)
- Torque constant: 0.149 Nm/A
- Rated speed: 2500 rpm @ 48 V DC link
- No-load speed: 3550 rpm (catalog 'No-load speed'; drawing/store 'Maximum Speed'), 48 V

## Links
- Product: https://store.leadshine.com/products/fm2-08523-frameless-motor
- Datasheet: https://store.leadshine.com/cdn/shop/files/FM2_catalog.pdf?v=13189285410893735797
- CAD: https://store.leadshine.com/products/fm2-08523-frameless-motor

## Sources
- https://store.leadshine.com/products/fm2-08523-frameless-motor (price, rated/peak torque, mass, electrical specs, availability; Rated speed (researched 2026-11-03); price USD 239.00 (sale; regular USD 249.00) (seen 2026-11-03))
- https://store.leadshine.com/cdn/shop/files/FM2_catalog.pdf?v=13189285410893735797 (FM2 catalog: outline diameter x length, model code (stator core length); No-load speed (researched 2026-11-03))
- https://store.leadshine.com/cdn/shop/files/FM2-08523KTN256.pdf?v=2219017517873666592 (Rotor inner diameter (researched 2026-11-03); Torque constant (researched 2026-11-03))