# TQ-RoboDrive ILM85x23 Frameless Servo Kit

![TQ-RoboDrive ILM85x23 Frameless Servo Kit](https://parts.trymaglev.com/img/mo-tq-robodrive-ilm85x23.webp)

85 mm ILM stator-rotor kit (DLR-derived) with 52 mm rotor bore; a benchmark high-torque-density frameless motor for robot joints.

- Maglev ID: mo-tq-robodrive-ilm85x23
- Brand: TQ-RoboDrive
- MPN: ILM85x23
- Category: motors / Frameless BLDC Torque Motors
- Origin: DE (maker HQ, factory not confirmed)
- Maker: TQ-Systems GmbH (brand, DE)
- NDAA: unknown · Blue UAS: unknown · FCC: n/a
- HTS: 8501.31.40.00 (typical)
- MOQ: 1 · Lead time: 10-12 weeks (maker page); TQ shop states 7-9 weeks shipping time
- Confidence: VERIFIED

## Price
- 1+: ≈$707.58 (list, 2026-10-30, https://robodriveshop.tq-group.com/en/ILM85x23-VSS/311567-286841; converted from EUR 633.94 net (excl. VAT, shipping) qty 1-10 at 1.1162 USD/EUR (https://open.er-api.com/v6/latest/EUR), not a USD quote; variant ILM85x23 VSS (star serial))
- 11+: ≈$643.24 (list, 2026-10-30, https://robodriveshop.tq-group.com/en/ILM85x23-VSS/311567-286841; converted from EUR 576.30 net qty 11-50 at 1.1162 USD/EUR, not a USD quote; 51+ on request)

## Specifications
- Peak torque: 8.3 Nm
- Continuous torque: 2.57 Nm nominal
- Outer diameter: 85 mm stator OD
- Axial length: 36.9 mm stator; rotor 25.1 mm
- Voltage: 48 V nominal (star-serial data)
- Mass: 620 g
- Rotor ID: 52 mm
- Torque constant: 229 mNm/A
- No-load speed: 1728 rpm (theoretical, at rated voltage, star-serial)
- Power: 465 W
- Nominal current: 11.3 A
- Terminal resistance: 300 mOhm
- Pole pairs: 10

## Links
- Product: https://www.tq-group.com/en/products/tq-robodrive/motors-drive-solutions/motor-kits/ilm85x23/
- Datasheet: https://www.tq-group.com/filedownloads/files/products/robodrive/extended_data-sheets/DRVA_DB-ILM-Kits_ILM85x23_Rev201.pdf
- CAD: https://www.tq-group.com/en/products/tq-robodrive/motors-drive-solutions/motor-kits/ilm85x23/

## Works with
- ODrive Pro High-Power BLDC Controller (mo-odrive-pro)

## Sources
- https://www.tq-group.com/en/products/tq-robodrive/motors-drive-solutions/motor-kits/ilm85x23/ (maker product page: specs (star-serial), delivery time 10-12 weeks, datasheet links)
- https://www.tq-group.com/filedownloads/files/products/robodrive/extended_data-sheets/DRVA_DB-ILM-Kits_ILM85x23_Rev201.pdf (maker extended datasheet PDF: motor parameters)
- https://robodriveshop.tq-group.com/en/ILM85x23-VSS/311567-286841 (TQ RoboDrive web shop: tiered net EUR prices, 7-9 week shipping time)
- https://open.er-api.com/v6/latest/EUR (EUR/USD rate used for conversion (30 Oct 2026))