7/8" Diameter 5-Turn Wirewound Precision Potentiometer MODEL STYL

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7/8" Diameter 5-Turn Wirewound Precision Potentiometer MODEL STYL

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MODEL 7480 SERIES
7/8" Diameter 5-Turn Wirewound Precision Potentiometer
MODEL STYLES
7481 7483 7486
ELECTRICAL
1/8" Shaft, 1/4" Bushing 1/8" Shaft, Servo 1/4" Shaft, 3/8" Bushing
Resistance Range, Ohms Standard Resistance Tolerance Minimum Practical Resistance Tolerance Independent Linearity Minimum Practical Independent Linearity Power Rating, Watts Dielectric Strength Insulation Resistance, Minimum Noise, Maximum Actual Electrical Travel Tolerance Voltage, Maximum
ENVIRONMENTAL (MIL-R-12934)
±0.25% ±0.25%, Ohms ±0.20%, Ohms 70°C derating 125°C 1,000V 1,000 Megohms Ohms 1080° Ohms 1080° Ohms 0.25% input voltage
Operating Temperature Range Thermal Shock Shock, Sawtooth Vibration Moisture Resistance High Temperature Exposure Rotational Load Life
Specifications subject change without notice.
Static: -55°C +125°C Dynamic: -40°C +125°C cycles, -55°C +125°C 100G's (0.1ms discontinuity max.) 15G's, 2,000 0.1ms discontinuity max.) Five hour cycles 1,000 hours 125°C 500K shaft rev. hrs. rated wattage 70°C
2-109
Model 7480 Series
MECHANICAL
Total Mechanical Travel Number Gangs, Maximum Weight, Nominal (single gang) Backlash, Maximum Static Stop Strength Panel Tightening Torque, Maximum Shaft Play, Maximum Shaft Runout, T.I.R., Maximum Pilot Diameter Runout, T.I.R., Maximum Lateral Runout, T.I.R., Maximum Shaft Radial Play, Maximum Start/Run Torque, Maximum (per gang)
STANDARD RESISTANCE VALUES, OHMS
7481, 7486 oz.-in. lb.-in. .010" .003" .004" .005" .003" oz.-in.
1800° 0.75 7483 oz.-in. .005" .002" .002" .004" .002" oz.-in.
Total Resistance
Theoretical Resolution Nominal) 0.059 0.037 0.030 0.024 0.020 0.018 0.017 0.016
Tempco Wire ppm/°C ppm/°C ppm/°C ppm/°C ppm/°C ppm/°C ppm/°C ppm/°C
2-110
Model 7480 Series
OUTLINE DIMENSIONS (Inch/mm) Dim. 7481 .688±.013 17.475±0.787 +.0000 -.0003 Dia. +0.0000 3.1699 -0.0076 .1248 +.000 -.002 Dia. +0.000 7.137 -0.051 .281 1/4-32 UNEF Thread 7486 .812±.031 20.625±0.787 +.0000 -.0005 Dia. +0.0000 6.3500 -0.0127 .2500 +.000 -.002 Dia. +0.000 10.312 -0.051 .406 3/8-32 UNEF Thread
Models 7481 7486 Bushing Mount with Sleeve Bearing
Mounting Surface Dim. .125 Min. 3.18 Dim. Dim.
1.125±.031 28.58±0.79 .750±.016 19.1±0.41 Slider
Max.
.625 Max. 15.9
.080±.001 Dia. 2.03±0.03
+.000 -.010 +0.00 1.58 -0.25
Chamfer Dim. .016/0.41 Max. .312±.016 7.93±0.41
.875±.016 Dia. 22.2±0.41
Slot: .032±.005/0.813±0.127 Wide Deep (Not Rear Shaft Models)
OPTIONAL TERMINAL CONFIGURATION
VIEW SLIDER .625 15.9
.110 2.794 .020 Thickness .060 .003 Dia. 1.524 .076 .062 .003 1.524 .076
Special Feature Code "FT" order. Enlarged View
2-111
Model 7480 Series
OUTLINE DIMENSIONS (Inch/mm)
Model 7483 Servo Mount with Ball Bearing 1.250±.031 31.75±0.79 .875±.016 22.2±0.41 .250 6.35 Min. Mounting Surface .375±.031 9.53±0.79 .781 Dia. Max. 19.8 +.0000 .1248 -.0003 Dia. +0.0000 3.1699 -0.0076 +.000 -.001 +0.000 Dia. 15.875 -0.025 .625 .057 Min. 1.45 .062±.005 1.58±0.13 Chamfer .016/0.406 Max. .062±.005 1.58±0.13
.625 Max. 15.9 105° Max.
Clamp Ears
Slider
.080±.001 Dia. 2.03±0.03 .875±.016 22.2±0.41 Housing Dia.
+.005 .875 -.010 +0.13 Dia. 22.2 -0.25 Clamp .922 Dia. Max. 23.4
OPTIONAL TERMINAL CONFIGURATION
105° VIEW SLIDER .625 15.9
.110 2.794 .020 Thickness .060 .003 Dia. 1.524 .076 .062 .003 1.524 .076
Special Feature Code "FT" order.
Enlarged View
METRIC CONVERSIONS
25.4 28.4
oz.-in. lb.-in.
0,007 0,113
2-11
Model 7480 Series
SPECIAL FEATURES
Center Linearity Tape Rear Shaft Extension Flatted Shaft Slotted Shaft (Standard single gang 7486 without Shaft Lock (7481, 7486 only) High Torque oz.-in. (7486 only) Additional Gangs Gold plated solder terminals (See optional terminal configuration)
ORDERING INFORMATION
7486 Model Series Resistance Prefix Resistance Value Optional Special Feature Code Linearity Optional Non-Standard Tolerance
MATCHING TURNS COUNTING DIALS
7481: RBJ, 2601, 2641 7486: 2606, 2607, 2626, 2627, 2646, 2647, 2126, 2606S, 2607S, 2646S, 2647S,
CIRCUIT DIAGRAM
NOTES
(CCW) (CW)
Metric equivalents, based inch 25.4mm rounded same number significant figures original English units provided general information only. Tolerances unless otherwise specified: Linear inches (.25mm) Angular degrees
INCH
2-113
Model 7480 Series

7/8" Diameter 5-Turn Wirewound Precision Potentiometer MODEL STYL

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