www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 57078
174 Revision: 09-Nov-06
Model 18
Vishay Spectrol
Model 18 (PR2)
22.2 mm Diameter, 15 Turn Dial
FEATURES
•No backlash
•
Compact-requires minimal panel space (22.2 mm
diameter requirement)
•For use with precision potentiometers or other rotating
devices, up to 15 turns
•Designed for metal shaft
•High force “Click Brake”
•Black color on request
DIMENSIONS in millimeters (inches)
RoHS
COMPLIANT
MECHANICAL SPECIFICATIONS
Accepts Shaft Diameter 6.35 mm (0.250")/6 mm/3.17 mm (0.125")/3 mm
Number of Turns 0 to 15
Dial Division 50 per turn
Torque with Brake Engaged 5 oz. - in (350 gr - cm) min.
Markings Black or satin chrome
Weight 15 g
Set Srew UNC 2-56
Hex Key Size 1.27 mm (0.05")
Bushing Extension Beyond Panel 6.35 mm (0.250") max.
Shaft Extension Beyond Panel 18.1 mm (0.710") min.
22.2 mm (0.875") max.
ORDERING INFORMATION/DESCRIPTION
18 A 11 B010 e
MODEL SHAFT DIAMETER
ACCOMODATION AND FIXINGS
FINISH PACKAGING LEAD
FINISH
A 1/4" dia. shaft - 1 set screw
B 6 mm metric bore - 1 set screw
C 1/8" dia. shaft - 1 set screw
D 3 mm metric bore - 1 set screw
11 Satin chrome, black markings (standard)
21 Black chrome, white markings
41 Satin chrome, white markings
Example: 18 - A - 11
SAP PART NUMBERING GUIDELINES
18 A 11 B10
MODEL SHAFT DIAMETER FINISH PACKAGING
0
90
80
70
60
50
40
30
20
10
VISHAY
MOD
18
Ø 0.40 DEEP 0.30 (Ø 10.1 PROF 7.6)
Ø 0.65 DEEP 0.125 (16.5 PROF 3.2)
0.025 (0.65)
SPACER
ANTIROTATION
BLACK PLACTIC
0.05 (1.3)
Ø 0.250 + 0.001
(6.35 + 0.025)
SCREW 2 - 56 UNC
HEX 0.05
0.880 (22.2)
MTG. FACE
0.375 (9.53)
0.575 (14.6)
Ø 0.875 (22.2)
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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Vishay
All product specifications and data are subject to change without notice.
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otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
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