Datasheet

www.vishay.com For technical questions, contact: [e-mail] 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
9
0
8
0
7
0
6
0
50
4
0
3
0
2
0
1
0
V
I
S
HA
Y
M
O
D
1
8
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)