Radial magnetic rings

Radial magnetic rings

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  • MR031 radial ring
  • MR040 radial ring
  • MR047 radial ring
  • MR050 radial ring
  • MR057 radial ring
  • MR075 radial ring
  • MR122 radial ring
  • MR324 radial ring
  • MR406 radial ring

Magnetic rings for use in harsh environments

The robust RLS magnetic rings consist of a vulcanised elastoferrite layer securely attached to a steel hub. The elastoferrite layer is magnetised with 2 mm or 5 mm long alternating magnetic poles which form an incremental magnetic pattern.


Additionally, reference mark magnetic signature can be added to incremental magnetic pattern. Unique, multiple or distance coded reference marks are available.

 

Compatible with RLS readheads

Magnetic incremental rings are compatible with RLS standard LM1X family or component level RoLin readheads, which bring reliable operation due to non-contact design. Industry standard incremental or analogue output types are available.

 

Improved safety and reliability

To assure safety and reliability at high speeds and temperatures the rings can optionally be covered with a protective steel foil. This protective layer also minimises the influence of ageing and possible chemical degradation of the ring’s elastoferrite layer.

 

Easy installation for various shaft diameters

Various diameters are supported for radial rings from 30 mm to 406 mm. Radial rings allow heating up to 160 °C,  which makes them ideal for shrink fit installation. Due to high precision machining, the rings can also be press-fitted. 

 

Applications

The magnetic incremental rings bring reliable solutions to tough, hard-working applications including spindles, lathes, other machine tool applications. 

 

Radial rings - Features and compatibility
MR031E link
MR031G link
MR040E link
MR040G link
MR047B link
MR050E link
MR057E link
MR057R link
MR075E link
MR080R link
MR100F link
MR122E link
MR162Q link
MR324E link
MR406E link

 

For ring speed tables with LM13 encoder please contact sales@rls.si.

You can find speed tables for rings with LM10, LM15, RLM, RLC2IC, RLC2HD and RLB encoders bellow:

MR031E Radial magnetic ring
Outer Diameter 31.85 ±0.1 mm
Inner Diameter 20 H7 mm
Number of poles
50 poles 20 poles
Max speed (rpm) for MR031E ring
see table >> see table >>
With protection cover - Option H
see table >> see table >>
MR031G Radial magnetic ring
Outer Diameter 31.85 ±0.1 mm
Inner Diameter 20 H7 mm
Number of poles
50 poles 20 poles
Max speed (rpm) for MR031G ring
see table >> see table >>
MR040E Radial magnetic ring
Outer Diameter 40.8 ±0.1 mm
Inner Diameter 30 H7 mm
Number of poles
64 poles 26 poles
Max speed (rpm) for MR040E ring
see table >> see table >>
With protection cover - Option H
see table >> see table >>
MR040G Radial magnetic ring
Outer Diameter 40 mm
Inner Diameter 30 mm
Number of poles 64 poles
Max speed (rpm) for MR040G ring see table >>
MR047B Radial magnetic ring
Outer Diameter 47.5 ±0.1 mm
Inner Diameter 40 ±0.1 mm
Number of poles
76 poles 30 poles
Max speed (rpm) for MR047B ring
see table >> see table >>
MR050E Radial magnetic ring
Outer Diameter 50.1 ±0.1 mm
Inner Diameter 40 H7 mm
Number of poles
80 poles 32 poles
Max speed (rpm) for MR050E ring
see table >> see table >>
With protection cover - Option H
see table >> see table >>
MR057E Radial magnetic ring
Outer Diameter 57.3 ±0.1 mm
Inner Diameter 45 H7 mm
Number of poles
90 poles 36 poles
Max speed (rpm) for MR057E ring
see table >> see table >>
With protection cover - Option H
see table >> see table >>
MR057R Radial magnetic ring
Outer Diameter 57.5 ±0.1 mm
Inner Diameter 51 ±0.1 mm
Number of poles 90 poles
Max speed (rpm) for MR057R ring see table >>
With protection cover - Option H see table >>
MR075E Radial magnetic ring
Outer Diameter 75.4 ±0.1 mm
Inner Diameter 60 H7 mm
Number of poles
120 poles 48 poles
Max speed (rpm) for MR075E ring
see table >> see table >>
With protection cover - Option H
see table >> see table >>
MR080R Radial magnetic ring
Outer Diameter 80.3 ±0.1 mm
Inner Diameter 74 mm
Number of poles 128 poles
Max speed (rpm) for MR080R ring see table >>
With protection cover - Option H see table >>
MR100F Radial magnetic ring
Outer Diameter 100.5 ±0.1 mm
Inner Diameter 84.77 ±0.05 mm
Number of poles 160 poles
Max speed (rpm) for MR100F ring see table >>
MR122E Radial magnetic ring
Outer Diameter 122 ±0.1 mm
Inner Diameter 90 H7 mm
Number of poles 194 poles
Max speed (rpm) for MR122E ring see table >>
With protection cover - Option H see table >>
MR162Q Radial magnetic ring
Outer Diameter 80.3 ±0.1 mm
Inner Diameter 74 mm
Number of poles 256 poles
Max speed (rpm) for MR162Q ring see table >>
With protection cover - Option H see table >>
MR324E Radial magnetic ring
Outer Diameter 325.1 ±0.2 mm
Inner Diameter 240 mm
Number of poles 512 poles
Max speed (rpm) for MR324E ring see table >>
With protection cover - Option H see table >>
MR406E Radial magnetic ring
Outer Diameter 406.7 ±0.2 mm
Inner Diameter 360 H7 mm
Number of poles 640 poles
Max speed (rpm) for MR406E ring see table >>
With protection cover - Option H see table >>

Radial rings with readheads LM10, LM13 and LM15 encoders

Temperature
Readhead
Operating –10 °C to +80 °C (cable under non-dynamic conditions: –20 °C to +85 °C)
Storage -40 °C to +85 °C
Ring
Operating and storage

HNBR: -40 °C to +160 °C
NBR: -40 °C to +105 °C

Environmental sealing IP68 (according to IEC 60529)
EMC Immunity IEC 61000-6-2 (particularly: ESD: IEC 61000-4-2; EM fields: IEC 61000-4-3; Burst: IEC 61000-4-4; Surge: IEC 61000-4-5; Conducted disturbances: IEC 61000-4-6; Power frequency magnet fields: IEC 61000-4-8; Pulse magnetic fields: IEC 61000-4-9)
EMC Interference IEC 61000-6-4 (for industrial, scientific and medical equipment: IEC 55011)
Vibrations (55 Hz to 2000 Hz) 300 m/s2 (IEC 60068-2-6)
Shocks (11 ms) 300 m/s2 (IEC 60068-2-27)
RoHS Compliant with EU Directive 2002/95/EC

 

Radial rings with readheads RLM, RLC2IC, RLC2HD and RLB encoders

Temperature
Readhead
   RLB, RLC2IC and RLC2HD RLM
Operating –30 °C to +85 °C

With flex cable:
–20 °C to +85 °C
Without flex cable:
–40 °C to +125 °C

Storage  –40 °C to +85 °C –40 °C to +125 °C
Ring
Operating and storage

HNBR: -40 °C to +160 °C
NBR: -40 °C to +105 °C

Environmental sealing NA
EMC Immunity IEC 61000-6-2 (particularly: ESD: IEC 61000-4-2; EM fields: IEC 61000-4-3; Burst: IEC 61000-4-4; Surge: IEC 61000-4-5; Conducted disturbances: IEC 61000-4-6; Power frequency magnet fields: IEC 61000-4-8; Pulse magnetic fields: IEC 61000-4-9)
EMC Interference IEC 61000-6-4 (for industrial, scientific and medical equipment: IEC 55011)
Vibrations (55 Hz to 2000 Hz) 300 m/s2 (IEC 60068-2-6)
Shocks (11 ms) 300 m/s2 (IEC 60068-2-27)
RoHS Compliant with EU Directive 2002/95/EC
Moisture level
RLM RLC2IC RLC2HD RLB
- - MSL6 (IPC/JEDEC-J_STD_020) -

Features

  • Radial rings
  • Excellent dirt immunity
  • Bi-directional reference mark
  • High reliability from proven noncontact sensing technology
  • Industry standard digital outputs

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Lead time up to: 10 working days

Total price:

$13.02

Availability: In stock

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