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SPECIFICATIONS C-178, C-300
1 7/8" and 3" Sine Cosine

ROTATION: Continuous electrical and mechanical.
POWER RATINGS: C-178, 2.5 watts C-300, 4 watts
ROTATIONAL LIFE: Over 1,000,000 cycles.
TORQUE: Two inch-ounce per unit (maximum) for sleeve bearing; one inch-ounce per unit (maximum) for ball bearing.
TAPS: Positioned to function requirements.
RESISTANCE: ± 10% STANDARD TO ± 5% on order.
FUNCTION CONFORMITY: ± 1% standard to ± .25% on order. Multiple sections phased for simultaneous or other conformity.
SHAFT: C-300, .2495 to .2498 diameter. C-178, .1246 to .1249 or .1872 to .1874 diameters. Precision ground stainless steel, passivated for maximum corrosion resistance.
WIRE: Various alloys are used depending on particular application. Generally, wire with temperature coefficient of 0.00002 is specified.
HOUSING: Precision machined aluminum, blue Aluminlite finish for sleeve ball bearing Permanent and screw on, removable dust covers,
MOUNTINGS: Three tapped stainless steel inserts 3/16 full threads with central pilot, or servo mounting. .0015 T.I.R. concentricity and .003 T.I.R. lateral runout on order.
TERMINALS: Hard gold plated turret terminals.
CONTACT MATERIALS: Precious metals.

SUPPLEMENTARY DIMENSIONS
DIMENSION C-178 C-300
A 1 1/4" 1 3/4'
B 1 7/8" 3"
C 3/4" 1 1/4"
D .718" 1.218"

C-178, C300 Description


Samarius Precision Instruments | Precision Potentiometers for Over 30 Years