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MMC108

Moflon MMC108 - Miniature Slip Ring
OD 7.9mm(0.31"),Length 10.8mm(0.425"), 4wires* 1A(signal)
MMC108 slip rings are small and compact with OD 7.9mm * L 10.8mm, standard, off-the-shelf.Color-coded lead wires are used on both the stator and rotor for simplified electrical connections. Using a 90° V-groove ring design for each ring.

MMC1089 is the high-end version corresponding to MMC108, It has higher performace and longer working life, higher speed rotating speed,low noise, Pealse refer to table 2 as below.

MMC108

 

Shared Specifications
Wires 4(see table as above) Current Signal(1A)
Voltage 240 VDC/VAC Max speed 250RPM
Contact Material Precious Metal:gold-gold Contact Resistance <150mOhm(AWG28#,250mm)
Housing Material Plastics Torque 0.02N.m
Working life depends on working speed Electrical noise <10mΩ
Dielectric strength 250VDC@50Hz Lead Wire UL Teflon® Awg30
Insulation resistance 1000MΩ@500VDC Lead Lengths 250mm
Operating Temp. -40°C to 80°C Protection IP51
Mechanical vibratio MIL-SID-810E Humidity 10% to 90% RH
Materials Lead Free,RoHS compliant CE Certified YES

Notes:
1)The operational life of the unit is dependent upon rotational speed, environment and temperature.
2)Lead Wire size: 2A/signal -> AWG30, colored code.
3)Electrical noise is dependent upon the rotating speed and current,voltage. 

TABLE 2:

  Max Speed Working life Torque Housing 
Material
Electrical noise①
@10Rpm
MMC108 250RPM depends on working speed 0.02 N·m Plastics 10mΩ
MMC1089 1000RPM 1depends on working speed 0.005 N·m Metal 4mΩ

Standard drawings:

Lead wire Color codes
Rings# Color Code Rings# Color Code Rings# Color Code
1 BLK 3 RED 5 YEL
2 BRN 4 ORN 6 GRN
 

 

  • If you don't see what you want in this website,let us know; we may already have it designed or we will modify a design to meet your requirements. In many cases the specifications in the catalog can be changed to include bore size, circuits number, higher current/voltage,flange, lead wire length,shielding,connectors,higher speed,IP68,military grade,higher temperature, mixed with pneumatic/hydraulic capability. Please ask if you don't see exactly what you need as only a small fraction of our Moflon slip rings are included in this catalog!
     
  • MMC1089 is the high-end version corresponding to MMC108.
  • Optional flange mounting.
  • Specified connectors and Heat-shrink tube.
  • Longer lead lengths available.
  • High temperature is optional.
  • Military Grade.

Flange Mounting Instructions 

1. Align the mounting holes in the flange to mounting base and install flat washers and thread forming screws (NOT SUPPLIED) for plastic. Securely tighten screws.

2. Route the wiring and make the necessary connections. Do not allow the wiring to restrict free rotation of the slip ring.

3. Position a screw or dowel (NOT SUPPLIED) in the anti-rotation tab to the dimension as shown.

CAUTION: Because of possible geometric mismatching between the customer��s application and the slip ring, 'hard mounting' of both ends of the slip ring (i.e., securing the rotor and stator such that there is NO floating during operation) is not recommended and may cause premature failure





Shaft Mounting Instructions(For Through bore style) 

1.Main shaft mouted units:

A.Position the slip ring in the desired location and tighten both set screws to the shaft.Maximum torque 25Ib-in(DO NOT OVER TORQUE)
B.Route the wiring and make the neccessary connections.Do not allow the wiring to restrict free rotation of the slip ring.Do not constrain wiring such that wire flexing occurs.Doing so will ultimately cause failure(breakage of the wiring).

2.Housing mouted units:

A.Anti-Rotation tap used for connecting the stator of slip ring with the stationary member of euipment
B.Route the wiring and make the neccessary connections.Do not allow the wiring to restrict free rotation of the slip ring. 
 

Typical Application

  • CCTV Monitoring System.
  • Electrical test equipment.
  • Medical equipment.
  • Rotary table
  • Robotics
  • Laboratory equipmen
  • Manufacturing and process control equipment