Model 21 www.vishay.com Vishay Spectrol 46.02 mm Diameter 15 Turn Dial FEATURES * Round vernier scale * 1 13/16" dia. * 1/4" or 1/8" or 6 mm metric bore shaft adapter * Satin chrome finish with black markings * Black chrome finish with white markings * Brushed chrome finish with black markings QUICK REFERENCE DATA Sensor type Market appliance * Material categorization: For definitions of compliance please see www.vishay.com/doc?99912 DIALS Industrial Dimensions 46 mm dia. MECHANICAL SPECIFICATIONS OPERATIONAL SPECIFICATIONS PARAMETER 1499 turns total The number in window (0 thru 14) Readout and operation indicates completed number of turns of the drive sleeve. Graduated circular dial indicates the percent of the partial turn of the drive sleeve Direct to shaft with # 4 to 40 hex socket set screw located adjacent to no. 75 on graduated dial Mounting Numeral size: Counter wheel: Graduated dial: 0.90" H x 0.013" W (2.29 cm x 0.33 cm) 0.109" x 0.018" (2.77 cm x 0.46 cm) Graduation size: Numeral and every Fifth Intermediate Width Transfer point The number in center of window shall change as graduated dial rotates between 94 and 0 Rotation Readout shall increase with clockwise and decrease with counterclockwise rotation Accuracy Zero blacklash between graduated dial and the drive sleeve 0.55" L (1.40 cm) 0.035" L (0.89 cm) 0.012" (0.30 cm) Weight 3.0 max. (85.05) DIMENSIONS in inches (millimeters) MOUNTING FACE DRIVE SLEEVE COUNTING DIAL BRAKE LEVER 1.094 R MAX. (27.79) 0.015 1.000 (25.40) 22 5 5 46 TURNING KNOB 0.562 (14.27) 0.094 (2.39) 0.125 (3.18) 0.000 - 0.015 0.001 0.046 (1.17) 0.128 (3.25) 0.001 0.250 - 0.000 O (6.35) 0.005 0.390 - 0.000 O (9.91) SET SCREW* 0.268 (6.81) O 1.812 P (46.02) 0.015 BASE GRADUATED DIAL 0.015 0.578 - 0.000 (14.68) *SET SCREW LOCATION AT NO 75 ON DIAL FACE 0.031 0.922 (23.42) ORDERING INFORMATION/DESCRIPTION 21 A 11 B010 e MODEL SHAFT DIAMETER AND ACCOMODATION FINISH AND OTHER FEATURES PACKAGING LEAD FINISH A 1/4" shaft (standard) B 6 mm metric bore shaft adapter C 1/8" Shaft adapter 11. Satin chrome, black markings 21. Black chrome, white markings 31. Brushed chrome, black markings Example: 21 - A - 11 SAP PART NUMBERING GUIDELINES 21 A 11 B10 MODEL SHAFT DIAMETER FINISH PACKAGING Revision: 05-Jul-12 Document Number: 57088 1 For technical questions, contact: sferprecisionpot@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. 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