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| MODEL 7480 SERIES 7/8" Diameter 5-Turn Wirewound Precision Potentiometer MODEL STYLES 2 7481 7483 7486 7488 (for heavy side load applications) NEW PRODUCT ELECTRICAL 1/8" Shaft, 1/4" Bushing 1/8" Shaft, Servo 1/4" Shaft, 3/8" Bushing 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 Tap Tolerance End Voltage, Maximum ENVIRONMENTAL (MIL-R-12934) 100 to 50K 5% 1% 0.25% 0.25%, < 500 Ohms 0.20%, 500 Ohms 1.5 at 70C derating to 0 at 125C 1,000V rms 1,000 Megohms 100 Ohms 1080 + 10 - 0, > 100 Ohms 1080 + 10 - 5, 100 Ohms 3 0.25% of input voltage Operating Temperature Range Thermal Shock Shock, 6ms Sawtooth Vibration Moisture Resistance High Temperature Exposure Rotational Load Life Rotational Life Model 7488 (1 pound Side Load) Specifications subject to change without notice. Static: -55C to +125C Dynamic: -40C to +125C 5 cycles, -55C to +125C (5% R) 100G's (0.1ms discontinuity max.) 15G's, 10 to 2,000 Hz (5% R, 0.1ms discontinuity max.) Five 24 hour cycles (3% R) 1,000 hours at 125C (5% R) 500K shaft rev. + 900 hrs. at rated wattage at 70C (5% R) 500K shaft rev. + 900 hrs. at rated wattage at 70C (5% R) 2-109 Model 7480 Series MECHANICAL Total Mechanical Travel Number of Gangs, Maximum Weight, Nominal (single gang) Backlash, Maximum Static Stop Strength Panel Nut Tightening Torque, Maximum Shaft End 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 60 oz.-in. 25 lb.-in. .010" .003" .004" .005" .003" 1.2 oz.-in. 1800 + 15 - 0 2 0.75 oz. 1 7483 36 oz.-in. N/A .005" .002" .002" .004" .002" 0.9 oz.-in. Total Resistance 100 200 500 1K 2K 5K 10K 20K Theoretical Resolution (% Nominal) 0.059 0.037 0.030 0.024 0.020 0.018 0.017 0.016 Tempco of Wire 20 ppm/C 20 ppm/C 20 ppm/C 20 ppm/C 20 ppm/C 20 ppm/C 20 ppm/C 20 ppm/C 2-110 Model 7480 Series OUTLINE DIMENSIONS (Inch/mm) Dim. A 7481 .688.013 17.4750.787 +.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 20.6250.787 +.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 B 2 C Mounting Surface Dim. A .125 Min. 3.18 Dim. B Dim. C D 1.125.031 28.580.79 .750.016 19.10.41 Slider CCW CW 75 Max. .625 R Max. 15.9 .080.001 Dia. 2.030.03 +.000 -.010 +0.00 1.58 -0.25 .062 Chamfer Dim. D .016/0.41 Max. x 45 .312.016 7.930.41 .875.016 Dia. 22.20.41 Slot: .032.005/0.8130.127 Wide X .032+.010-.000/0.813+0.254-0.000 Deep (Not on Rear Shaft Models) OPTIONAL TERMINAL CONFIGURATION 40 VIEW B SLIDER .625 R MAX 15.9 R MAX .110 2.794 .020 Thickness .060 .003 Dia. 1.524 .076 .062 .003 1.524 .076 Use Special Feature Code "FT" to order. Enlarged View B 2-111 Model 7480 Series OUTLINE DIMENSIONS (Inch/mm) Model 7483 Servo Mount with Ball Bearing 1.250.031 31.750.79 .875.016 22.20.41 .250 CCW 6.35 CW Min. Mounting Surface .375.031 9.530.79 .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 1.580.13 Chamfer .016/0.406 Max. x 45 .062.005 1.580.13 .625 R. Max. 15.9 105 Max. Clamp Ears Slider .080.001 Dia. 2.030.03 .875.016 22.20.41 Housing Dia. +.005 .875 -.010 +0.13 Dia. 22.2 -0.25 Clamp .922 Dia. Max. 23.4 OPTIONAL TERMINAL CONFIGURATION 105 MAX 40 VIEW B SLIDER .625 R MAX 15.9 R MAX .110 2.794 .020 Thickness .060 .003 Dia. 1.524 .076 .062 .003 1.524 .076 Use Special Feature Code "FT" to order. Enlarged View B METRIC CONVERSIONS 1 in. 1 oz. 25.4 mm 28.4 gm 1 oz.-in. 1 lb.-in. 0,007 N-m 0,113 N-m 2-112 Model 7480 Series SPECIAL FEATURES Center Tap Linearity Tape Rear Shaft Extension Flatted Shaft Slotted Shaft (Standard on single gang 7486 without RS) Shaft Lock (7481, 7486 only) High Torque 2-6 oz.-in. (7486 only) Additional Gangs Gold plated solder lug terminals (See optional terminal configuration) ORDERING INFORMATION CT LT RS FS SS SL HT 2G FT 2 7486 R 10K T2 L .30 XX 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, RB CIRCUIT DIAGRAM NOTES (S) (CCW) (CW) Metric equivalents, based on 1 inch = 25.4mm are rounded to the same number of significant figures as in the original English units and are provided for general information only. Tolerances unless otherwise specified: Linear = .01 inches (.25mm) Angular = 2 degrees INCH mm 2-113 Model 7480 Series |
Price & Availability of 7486
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