---
title: "EC frameless 90 flat (260 W) vs TQ-RoboDrive ILM85x26"
description: "Compare EC frameless 90 flat (260 W) and TQ-RoboDrive ILM85x26: catalog torque, mass, speed, price and source/revision caveats. Not a matched-condition test or compatibility recommendation."
canonical: https://actuatorlist.com/comparisons/maxon-ec-frameless-90-flat-260w-vs-tq-robodrive-ilm85x26
last-updated: 2026-11-01T14:05:43.000Z
---
# EC frameless 90 flat (260 W) vs TQ-RoboDrive ILM85x26

Compare EC frameless 90 flat (260 W) and TQ-RoboDrive ILM85x26: catalog torque, mass, speed, price and source/revision caveats. Not a matched-condition test or compatibility recommendation. Unknown means not documented, not zero.

## EC frameless 90 flat (260 W)

Photo unavailable.

[Catalog and sources](/actuators/maxon-ec-frameless-90-flat-260w)

## TQ-RoboDrive ILM85x26

![TQ-RoboDrive ILM85x26: illustrative catalog photo; revision/variant unconfirmed](/actuator-images/tq-robodrive-ilm85x26.webp)

[Catalog and sources](/actuators/tq-robodrive-ilm85x26)

## Specifications

| Specification | EC frameless 90 flat (260 W) | TQ-RoboDrive ILM85x26 |
| --- | --- | --- |
| Peak torque (catalog) | 9.76 N·m | 9.37 N·m |
| Rated torque (catalog) | 1 N·m | 2.9 N·m |
| Maximum speed (catalog) | 5000 rpm | 5400 rpm |
| Mass | 814 g | 670 g |
| Gear ratio | 1:1 | 1:1 |
| Voltage | 48 V | 48 V |
| Price (catalog, not a live quote) | 437 USD | 810 USD |
| Encoder (resolution is not accuracy) | None (frameless rotor/stator kit; add own sensor) | None (frameless stator/rotor kit; add own sensor) |
| Complete actuator efficiency | Unknown: not documented | Unknown: not documented |
| Cooling / thermal duty | Unknown: not documented | Unknown: not documented |
| Loaded repeatability | Unknown: not documented | Unknown: not documented |
| Calibrated simulation model | Unknown: not documented | Unknown: not documented |

Sensor bits do not establish loaded accuracy. CAD geometry is not a calibrated simulation model. Verify thermal conditions, duty and exact revision before engineering use.

Catalog photo; illustrative. Confirm hardware revision/variant.

Catalog headline specs spot-checked: confirm revision. The legacy verified flag is a catalog spot-check, not verification of every field, installed revision or independent performance validation. Catalog entry only; confirm the exact revision and operating conditions with the linked source.

## Arithmetic from catalog values

Differences are subtraction of retained catalog values, not measured advantages. Ratings may have different test conditions. Unknown means not documented; manufacturer claims and catalog spot-checks are not independent validation.

- Peak torque: EC frameless 90 flat (260 W) (9.76 N·m) minus TQ-RoboDrive ILM85x26 (9.37 N·m) = 0.39 N·m.
- Rated torque: EC frameless 90 flat (260 W) (1 N·m) minus TQ-RoboDrive ILM85x26 (2.9 N·m) = -1.9 N·m.
- Maximum speed: EC frameless 90 flat (260 W) (5000 rpm) minus TQ-RoboDrive ILM85x26 (5400 rpm) = -400 rpm.
- Mass: EC frameless 90 flat (260 W) (814 g) minus TQ-RoboDrive ILM85x26 (670 g) = 144 g.

## Catalog source links

### EC frameless 90 flat (260 W) / catalog sources

[Catalog-linked product page](https://www.maxongroup.com/maxon/view/product/542099) · [Catalog-linked datasheet](https://datasheets.globalspec.com/ds/maxon-motor-ag/542099/abc9aff5-cce5-4b70-a592-8dbb20e40d6b)

### TQ-RoboDrive ILM85x26 / catalog sources

[Catalog-linked product page](https://www.tq-group.com/en/products/tq-robodrive/servo-kits/ilm85x26/) · [Catalog-linked datasheet](https://www.tq-group.com/filedownloads/files/products/robodrive/data-sheets/en/DRVA_DB_Servo-Kits_ILM_EN_Rev0414_Web.pdf)

## Related catalog comparisons

Catalog specifications and source caveats, not compatibility recommendations.

- [RI80 V2.0 KV75 vs EC frameless 90 flat (260 W)](/comparisons/cubemars-ri80-v2-kv75-vs-maxon-ec-frameless-90-flat-260w)
- [RI80 V2.0 KV75 vs TQ-RoboDrive ILM85x26](/comparisons/cubemars-ri80-v2-kv75-vs-tq-robodrive-ilm85x26)

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