Model 21 www.vishay.com Vishay Spectrol 46.02 mm Diameter 15 Turn Dial FEATURES Round vernier scale 13 1 / dia. 16 1 1 / or / or 6 mm metric bore shaft adapter 4 8 Satin chrome finish with black markings Brushed chrome finish with black markings QUICK REFERENCE DATA Material categorization: for definitions of compliance please see www.vishay.com/doc 99912 Sensor type DIALS Market appliance Industrial Dimensions 46 mm dia. MECHANICAL SPECIFICATIONS OPERATIONAL SPECIFICATIONS PARAMETER 1499 turns total The number in window (0 thru 14) Direct to shaft with 4 to 40 indicates completed number of turns of Mounting hex socket set screw located Readout and operation the drive sleeve. Graduated circular dial adjacent to no. 75 on graduated dial indicates the percent of the partial Numeral size: turn of the drive sleeve Counter wheel: 0.90 H x 0.013 W (2.29 cm x 0.33 cm) The number in center of window shall Graduated dial: 0.109 x 0.018 (2.77 cm x 0.46 cm) Transfer point change as graduated dial rotates between 94 and 0 Graduation size: Readout shall increase with clockwise Numeral and every 0.55 L (1.40 cm) Rotation and decrease with counterclockwise Fifth rotation Intermediate 0.035 L (0.89 cm) Width 0.012 (0.30 cm) Zero blacklash between graduated dial Accuracy and the drive sleeve Weight 3.0 oz. max. (85.05 g) DIMENSIONS in inches (millimeters) COUNTING DIAL MOUNTING FACE BRAKE LEVER 1.094 R MAX. 5 0.015 (27.79) 22 DRIVE SLEEVE 1.000 5 (25.40) 46 TURNING KNOB 0.562 (14.27) 0.000 - 0.015 0.001 0.046 0.125 0.094 SET SCREW* 1.812 P (1.17) (3.18) (2.39) (46.02) 0.001 0.128 0.250 - 0.000 0.015 (3.25) 0.268 BASE (6.35) (6.81) GRADUATED DIAL 0.005 0.390 - 0.000 0.015 0.578 - 0.000 (9.91) *SET SCREW LOCATION AT (14.68) NO 75 ON DIAL FACE 0.031 0.922 (23.42) ORDERING INFORMATION / DESCRIPTION 21 A 11 B010 e MODEL SHAFT DIAMETER AND ACCOMMODATION FINISH AND OTHER FEATURES PACKAGING LEAD FINISH 1 A / shaft (standard) 11. Satin chrome, black markings 4 B 6 mm metric bore shaft adapter 31. Brushed chrome, black markings 1 C / shaft adapter 8 Example: 21 - A - 11 SAP PART NUMBERING GUIDELINES 21 A 11 B10 MODEL SHAFT DIAMETER FINISH PACKAGING Revision: 01-Apr-2021 Document Number: 57088 1 For technical questions, contact: sferprecisionpot vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc 91000 Legal Disclaimer Notice www.vishay.com Vishay Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, Vishay), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other disclosure relating to any product. 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ALL RIGHTS RESERVED Revision: 09-Jul-2021 Document Number: 91000 1