MMC - Miniature Slip Rings

MMC108

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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.

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.