RLS RM44 / RM58 Rotary Magnetic Shaft Encoder
RLS · MPN RM44 / RM58 (configured) · Maglev ID ac-rls-rm44
SI Maker in Slovenia, factory not confirmed unknown VERIFIED
44 mm or 58 mm housed magnetic encoder with its own shaft and bearings; an industrial-format output-side encoder when the joint has a stub shaft to couple.
Specifications
| Resolution | up to 14 bit absolute SSI; up to 16,384 cpr incremental |
|---|---|
| Accuracy | typ. ±0.5°; hysteresis 0.18° |
| Max speed | 30,000 rpm (electrical, per datasheet tables); page states 60,000 rpm |
| Interface | SSI; BiSS C; incremental RS422 / open collector / push-pull; analogue sin/cos; linear voltage |
| Form | on-axis module: housed shaft encoder, Ø44 mm (RM44) or Ø58 mm (RM58) body |
| Sensing | Hall (on-axis) |
| Supply | 5 V ±5 % or 8 V to 26 V (24 V version) |
| Bore / ring ID | n/a |
| Operating temp | -40 °C to +125 °C (IP64) / -40 °C to +85 °C (IP68) |
Who makes it
MakerRLS merilna tehnika d.o.o. (Renishaw associate)
Based inSlovenia
RoleBrand owner
Need a different shaft, connector, firmware or enclosure, or a price at 1,000 units? Maglev takes the catalog part to the factory and comes back with a custom version and one fixed price.
Landed cost in the US
CN
37.5%
TW
10%
VN
12.5%
IN
10%
JP
12.5%
KR
12.5%
DE
10%
MX
10%
US
0%
Total US duty on this part by where it is made (2026-10-29). Mexico shown before USMCA preference; qualifying goods enter duty free. Your factory choice, not the shipping port, sets the origin.
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Compliance
| HTS classification | 9031.80.80.85 typical, not a ruling |
|---|---|
| NDAA | unknown |
| Blue UAS | unknown |
| FCC | n/a |
Equivalents from other makers
Sources
- https://www.rls.si/eng/rm44-rm58specs, image
- https://cdn.rls.si/documents/datasheets/RM4458D01_01.pdfdatasheet: accuracy, hysteresis, resolution, supply variants
Record confidence: VERIFIED. VERIFIED means the maker's own documents; REPORTED means a credible third party; UNVERIFIED means a single weak source. Anything we could not confirm says unknown.