We provide a fully compatible 1:1 replacement mechanism for the MRA-G130-105D3 wire-draw unit, engineered for a 6 mm shaft servo flange. This solution supports a measuring range of 0–5 m and offers precise, repeatable performance. With typical reproducibility of ≤ 0.2 mm and a compact design, it seamlessly substitutes the original component while minimizing system redesign.
The replacement mechanism features a lightweight polymer housing, paired with a highly flexible 1.4401 stainless-steel stranded measuring wire. The wire pulls out approximately 385 mm per revolution, making it ideal for long-stroke linear feedback applications. A spring return force ensures the wire reliably retracts, paired with a durable mechanical structure rated for long-term use.
Designed for industrial environments, this replacement supports ambient temperatures from –30 °C to +70 °C and provides consistent performance across a wide working range. Rated at IP50, it is suitable for relatively clean indoor settings. This 1:1 replacement ensures that systems using high-precision wire-draw encoders can continue to operate reliably without modification.
Replacement solution image
Technical details
| Description | EcoLine wire draw mechanism for servo flange with 6 mm shaft, measuring range 0 m ... 5 m |
| Items supplied | Without encoder |
| Measurement range | 0 m ... 5 m |
| Reproducibility | ≤ 0.2 mm |
| Linearity | ≤ ± 2 mm |
| Hysteresis | ≤ 0.4 mm |
| Weight | 800 g |
| Wire draw mechanism Weight (measuring wire) | 1.2 g/m |
| Measuring wire material | Highly flexible stranded steel 1,4401 stainless steel V4A |
| Housing material | Plastic, Noryl |
| Housing material, wire draw mechanism | Plastic, Noryl |
| Length of wire pulled out per revolution | 385 mm |
| Actual wire draw length | 5.2 m |
| Spring return force | 4.5 N ... 7 N 1) |
| Measuring wire diameter | 0.55 mm |
| Wire acceleration | 4 m/s² |
| Operating speed | 3 m/s |
| Resolution | To calculate the resolution of the system please use following formula: length of wire draw per revolution / steps per revolution = resolution of the combination of wire draw + encoder |
| Ambient operating temperature | –30 °C ... +70 °C |
| Enclosure rating mechanic | IP50 |
| Life of wire draw mechanism | Typ. 1,000,000 cycles 2) 3) |
