71AD36-3118

Mechanical Encoders Series 71 Binary Code Features • 1/4" or 1/8" Shaft Diameters • 25,000 Cycles at 125 mA • Optional Seal Versions • Adjustable Stop Versions in inches (and millimeters) .761 – .046 (19,33 – 1,17) .312 – .020 (7,92 – 0,51) .375 – .020 (9,53 – 0,51) 72 .250 – .020 (6,35 – 0,51) 1/4 32-UNEF-2A THREAD .219 ± .004 (5,56 ± 0,10) CL OF SHAFT FLAT .750 – .020 (19,05 – 0,51) OVER TERMINALS 3/8 32-UNEF-2A THREAD Detail A 72° SHAFT IS SHOWN IN POSITION 1 Rear mounting plate stamping indicates CODED output terminals, not decimal positions. Optical and Mechanical Encoders .687 – .015 (17,45 – 0,38) DIA. 0.250" Diameter Shaft SEE DETAIL A 1 .125 + .001/ .002 (3,18 + 0,03/ 0,05) .203 – .005 (5,16 – 0,13) 8 .562 – .015 (14,27 – 0,38) CL OF BUSHING FLATS SHAFT IS SHOWN IN POSITION 1 .500 – .015 (12,7 – 0,38) DIA. .031 (0,79) REF. C (2,39 – 0,25) 2 C OF SHAFT L FLAT 4 0.125" Diameter Shaft .094 – .010 GRAYHILL 81073 DIMENSIONS CL OF BUSHING KEYWAY .250 + .001/ –.002 (6,35 + 0,03/ –0,05) All dimensions and rear view not shown for the .250" diameter shaft type are the same as the .125" diameter shaft type. .034 ± .003 (0,86 ± 0,08) .068 ± .005 (1,73 ± 0,13) BUSHING KEYWAY .066 ± .002 (1,68 ± 0,05) WIDE BY .036 ± .003 (0,91 ± 0,08) FROM A .375 (9,53) DIAMETER Grayhill part number and date code marked on label. Customer part number marked on request. Code and Truth Table Output Decimal Position Terminal 0 1 2 3 4 5 6 7 8 9 1 l l l l l 2 l l l l 4 l l l l 8 l l l Indicates contact is made to the common. Options Shaft and Panel Seal Shaft is sealed by o-ring inside the bushing; panel is sealed by o-ring at the base of the bushing. Seals do not alter dimensions as shown in the drawing when switch is mounted. Panel seal is silicone rubber. Shaft seal is an o-ring per MIL-P-5516B. Shaft and panel seal is not available on adjustable stop switch. Rated:  To make and break 125 mA at 30 Vdc resistive at standard conditions Life Expectancy: 25,000 cycles at rated load; 50,000 cycles mechanical. For ratings at different loads and conditions, contact Grayhill. Contact Resistance: 100 milliohms maximum (50 milliohms initially) Insulation Resistance: As measured between mutually insulated parts Initially: 50,000 megohms minimum After Life: 10,000 megohms minimum Voltage Breakdown: 500 Vac between mutually insulated parts Carry Current: These switches will carry 3 amperes with a maximum contact temperature rise of 20°C. Adjustable stop switch lets you limit the number of positions. Remove and relocate pins in the front plate. A sticker holds the pins in place. With the exception of holes in the front plate, all dimensions, ratings, and characteristics are the same as the other Series 71 coded switches. For diagrams, see Standard Switch. Ordering Information Specifications Electrical Rating Adjustable Stop Switches Additional Characteristics Rotational Torque: 8 to 16 oz-in. Contacts: Non-shorting wiping contacts Shaft Flat Orientation: As shown in the drawing, switch would provide a decimal 1 output. Materials and Finishes Base: Diallyl per MIL-M-14 Rotor Mounting Plate: Thermoplastic. Rotor Contact: Phosphor Bronze, gold-plated 30 microinches minimum Terminals: Brass, gold plate (20 microinches min) over silver plate (300 microinches min) Additional Materials: Other switch materials and finishes are the same as listed for the standard switch. Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois Shaft Diameter And Description Part Number 71AY23401 71AY23402 71BY23403 71BY23404 71AD36-3118 71BD36-3119 1/8" Continuous Rotation 1/8" Cont. Rot., Sealed 1/4" Continuous Rotation 1/4" Cont. Rot., Sealed 1/8" Adjustable Stops 1/4" Adjustable Stops Available from your local Grayhill Distributor. For prices and discounts, contact a local Sales Office, an authorized local Distributor or Grayhill. 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com