Ametek 1980 Rotating Cam Limit Switch User Manual download pdf (Page 4)

Description

Precision, rugged duty snap action switches,

extremely accurate cam adjustments with a heavy

duty shaft, rugged case and lifetime sealed ball

bearings, have been combined by GEMCO to

provide the most versatile and dependable Rotating

Cam Limit Switch available.

No Special Cams are Required

The accurate cam adjustments are made possible

by the use of a separate reduction drive in each half

of a circuit cam block assembly. This drive provides

a 36 to 1 ratio which means that one revolution of

the adjustment wheel will advance or retard the cam

setting by 10 degrees.

For most applications, therefore, no special cams

are necessary and settings may be changed at any

angular position of the camshaft.

• Lifetime Sealed Ball Bearing allows mounting in

any position.

• Large Cover Openings for ease of wiring.

•

No Minimum Speed is speciﬁed because snap

action contacts are used. Maximum rated speed

of the Camshaft is 500 RPM and can be rotated

either clockwise or counterclockwise.

•

Two types of compact integrally Mounted Gear

Reducers are available with ratios of 1:1 through

600:1. They can also be supplied with speed

multipliers up to 1:8.

Technical Data

• The maximum temperature with full electrical load

is 185°F. The minimum operating temperature is -

50°F minimum cam adjusting temperature is -10°F.

• Standard GEMCO Rotating Cam Limit Switches

have a rating of 50 pounds end thrust and 500

pounds radial load on standard shaft extensions.

• Torque Required - .6 lb. - In/Circuit.

• Repeatability +/- 1/4°

Snap Action Switches

All standard GEMCO Rotating Cam Limit Switches

employ SPDT precision type snap action switches

which provide the advantage of double-break

contacts and are actuated at a uniform rate to give

long life. DPDT switches can be provided upon

request. Any number of circuits from 1 to 40 may be

supplied as standard in Nema 1, Nema 4, Nema 7

and Nema 12 enclosures.

Each switch setting can be adjusted to your circuit

requirements.

An unlimited selection of circuit

arrangements is available with the GEMCO Rotating

Cam Limit Switch, with no special mounting cams,

dogs, etc. for contact settings.

GEMCO Microadjust Cams Provide

Unlimited Circuit Versa

tility

1080 N. Crooks Road • Clawson, MI 48017-1097 USA • 800.635.0289 • 248.435.0700 • Fax: 248.435.8120 • www.AMETEKAPT.com

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Ametek 1980 Rotating Cam Limit Switch User Manual Page 4

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