Full specification
| Parameter | Value |
|---|---|
| DOF | 21 |
| Sensing | 16 potentiometers |
| Actuation | 5 servo actuators for force simulation |
| Accuracy | 0.08° |
| Force output | 3.5 kg·cm |
| Weight | 390 g |
| Rate | wired 100 Hz · wireless 30 Hz |
| Wireless range | indoors, up to 5 m |
| Power | 5 V USB Type-C · can draw power from the TA teleoperation arm |
| Structure | Hybrid — linkage sensing with servo-driven force feedback |
Source: Linker FFG (LFFG1-02/03) product manual and the Linker glove range documentation. Figures verified November 2026 — confirm the exact variant against the datasheet issued with your order.
When this is the right choice
- Operator-side force feedback. Five servos resist finger motion proportionally to the remote contact force — the difference between watching a grasp and feeling one.
- Highest fidelity in the range. 21 DOF at 0.08° leaves almost nothing unmeasured in the hand.
- Deterministic when wired. 100 Hz over the cable, with power taken from the teleoperation arm — no battery on the operator’s wrist during a long session.
- Pairs with a sensed hand. An O30 or L30 Pro on the robot side plus an FFG on the operator side closes the loop that produces usable demonstration data.
When it is the wrong choice
- Fatigue. 390 g on the hand plus a cable is real weight over an eight-hour shift; schedule rotations or plan short sessions.
- Wireless is a compromise. 30 Hz and its own battery; if the loop matters, keep it wired.
- Overkill for kinematics only. If you are recording joint angles and nothing else, the MCG or EG does it for less money and less weight.
Alternatives at a similar level
- Linker EG (LEG1-02) — 15 sensors, 0.1°, 190 g, under 10 ms — capture without force
- Linker MCG (LMCG1-01) — Seven sensors, about 6 h untethered, lowest weight
- Linker TA (LTA1) — 14-DOF chest-mounted teleoperation arm, the natural power source for the FFG
Quote this model
Model, quantity and destination is enough to start — we come back with price, availability and the datasheet.
Linker FFG (LFFG1-02/03) FAQ
How does the force feedback actually work?
Five servo actuators drive the finger mechanisms against the operator. The tension is set from the remote hand’s contact estimate, so an object that resists on the robot side resists on the operator side. It is force simulation, not a torque-sensor loop through the whole chain.
Can it run off the teleoperation arm?
Yes. The FFG can take 5 V from the TA arm over the same cable, which removes the battery and keeps the wired 100 Hz path. That is the configuration we quote for a capture station.
Wired or wireless?
Both: 100 Hz wired, 30 Hz wireless with its own battery. For bilateral work, wired.
How long does it take to ship?
Confirmed per order at quotation — it depends on quantity and on the left/right configuration (LFFG1-02 and LFFG1-03 are the two hands). The quotation carries the date we are working to.
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