Tempco: Rotating Electrical Connectors

Multi-Pin Rotating Connectors Offer Superior Performance
Slip rings require maintenance and lose signal quality over time due to wear and debris on the brushes and commutator. Tempco’s Rotating Electrical Connectors are maintenance free. They last much longer than slip ring assemblies, and the signal does not degrade over time. Slip rings introduce electrical noise into the signal being transmitted, as shown on the oscilloscope below. Tempco’s Rotating Electrical Connectors transmit with near zero electrical noise, so the same connector style can be used for power and signal transmission, saving money.	Slip rings typically last for a few million revolutions. Tempco’s Rotating Electrical Connectors typically last hundreds of millions of revolutions. In many applications they can last over a billion revolutions. The superior performance of Tempco’s Rotating Electrical Connectors is attributable to the unique design of the connector. The electrical conduction path is a liquid metal that is molecularly bonded to the contacts. This creates a connection that is constant and unchanged for the life of the connector.
	Typical Applications Heating Elements Lamps Thermocouples Signs Rotating Antennas Displays Turntables Packaging Equipment Cable Reels Robotics Instrumentation Strain Gauges Testing and Control Devices Heated Rollers

Technical Information

Mounting

Rotating connectors may be used in any position between vertical and 90° horizontal. The UP arrow should not point below horizontal.
Model 110, 110-T, 205 and 305 connectors use the knurled receptacle inserted into the rotating member for mounting. This receptacle holds the rotating connector.
Larger rotating connectors use either the body or the plastic collar for mounting to the rotating member.
In horizontal applications, mount the connector with the body rotating to reduce mechanical loads on the bearing.
Limit mounting eccentricity to a maximum of .005" TIR.
Rotating connectors are not designed to carry mechanical loads. One end should be allowed to float, attached only by the connecting wires.

Connection

Use stranded wires of ample length and flexibility for the connection in order to avoid mechanical loads.
Terminal accessories are push-on quick disconnects which crimp onto the connecting wires and push onto the connector tabs.
Do not solder wires to the connector or bend tabs as such misuse will cause connector failure and void the warranty.
Provide overload protection to the electrical circuit containing the rotating electrical connector.
If wire wrapping occurs from too much connector torque, it is suggested to use a torque arm positioned to float against a fixed stop.

Temperature

Provide thermal insulation where necessary to prevent the connector temperature from exceeding 140°F (60°C). Rotating electrical connectors contain plastic materials that are sensitive to heat.
Overheating will cause connector failure and voids the warranty.

Vibration/Shock

Vibration or mechanical shock will reduce connector life or cause failure.
If vibration or shock is present, we suggest a flexible isolating mounting.

Food Applications

Rotating electrical connectors are factory sealed but do contain mercury and other fluids.
As a precaution, a protective housing is suggested to isolate the rotating connector from the food product.

Boot Kit

The boot kit is not watertight or intended for waterproofing but is designed to give protection to the wire terminals from splashing water or dust. The protection rating is IP51.

Recycling

Rotating electrical connectors contain mercury and should not be disposed of in the trash but only through mercury recycling programs. Tempco offers a mercury recycling service for this purpose. Ship spent connectors to our facility by UPS ground enclosed in a plastic bag. Include paperwork stating, “for recycling” with your company name, phone and fax numbers. Do not send through the U.S. Mail.

Mounting Information

Suggested Mounting Methods:

Models 110, 110-T, 205, 305 are typically mounted to the knurled metal receptacle.

Receptacle Mount Hole Dimensions
Model	Hole Diameter Ø	Depth
591, 592, 5920, 594	.283" (7.19)	.35" (8.89)
593	.408" (10.36)	.35" (8.89)

Inches (mm)
Tolerances Ø:
+.001" (+.025) -.000" (-.000)

Typical Body Mount:

*Minimum additional depth for
disconnect clearance is 1.4" (35.5).

Body Mount Hold Dimensions
Model	Hole Diameter Ø	Depth
230, 331	.998" (25.35)	.80" (20)
330. 430, 1250	1.248" (31.70)	.80" (20)
630	1.575" (40.00)	.80" (20)
435, 830	1.772" (45.00)	.80" (20)

Inches (mm)
Tolerances Ø:
+.001" (+.025) -.000" (-.000)

Collar Mount Hold Dimensions

*Minimum additional depth for
disconnect clearance is 1.4" (35.5).

Collar Mount Hold Dimensions
Model	Hole Diameter Ø	Depth
230, 331	.500" (12.70)	.40" (10)
330, 430	.625" (15.88)	.40" (10)
430 w/ plug	.625" (15.88)	1.40" (36)
630	.875" (22.23)	.40" (10)
830	1.125" (28.58)	.40" (10)
435	1.250" (31.75)	.80" (20)
1250 Stud	3/8"-16 UNC	.81" (20.5)
1250-metric Stud	10 x 1.5 metric	.81" (20.5)

Inches (mm)
Tolerances Ø:
+.001" (+.025) -.000" (-.000)

Insulating Collar Mount:

Mounting with an insulating collar
may be required to insulate connector
from conducted heat. Soft-mounting
with rubber type material is needed
if unit will be subjected to vibration.

Do you want a superior connection or an ordinary slip ring assembly? Choose TEMPCO’s Rotating Electrical Connectors for Higher Operating Efficiencies . . .
Design Features Superior to conventional slip rings Extremely low electrical noise Less than 1 milliohm resistance Sealed, ball bearing construction Increased reliability, no maintenance Durable, compact, low cost

How To Order
Order by the part number of the rotating connector and accessories that match your requirements. (See Details page links at Top) Standard lead time is stock to 3 weeks.