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H-22-6A Datasheet(PDF) 1 Page - Bourns Electronic Solutions

Part No. H-22-6A
Description  Turns-Counting Dial
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Maker  BOURNS [Bourns Electronic Solutions]
Homepage  http://www.bourns.com
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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”
Available in three versions -
black on satin chrome background,
white on black background or
satin body/black dial
RoHS compliant*
H-22 Turns-Counting Dial
Mechanical and Physical Characteristics
Number of Turns .............................................................................................................................................................................0 to 15
Dial Divisions............................................................................................................................................................................ 50 per turn
Readability - Over 10 Turns ............................................................................................................................................... 2 parts in 1000
Torque With Brake Engaged ...................................................................................................................6.95 oz-in. (500 g-cm) minimum
Markings ........................................................................................... Black on satin chrome background or white on black background
Locking Brake ...................................................................................................................................................................................... Yes
Weight ......................................................................................................................................................................... 15 grams (0.53 oz.)
Set Screw......................................................................................................................................................... UNC N2-56, one included
Set Screw Tightening Torque .............................................................................................................. 16.94 N-cm (1.5 lbs.-in.) minimum
Hex Key Size........................................................................................................................................................................... 0.05 in. hex
Shaft and Bushing Requirements
Shaft Diameter Requirements................................................................................................................................... Refer to chart below
Shaft Extension Beyond Panel ................................................................................................................... 18.1 mm (0.712 in.) minimum
22.2 mm (0.875 in.) maximum
Bushing Extension Beyond Panel.............................................................................................................. 9.53 mm (0.375 in.) maximum
H-22 MOUNTING INSTRUCTIONS
1.
Insert potentiometer in panel.
2.
Install anti-rotation device using hardware supplied with
potentiometer.
3.
Turn potentiometer shaft counterclockwise to minimum
resistance or voltage ratio.
4.
Set the dial to “0.0” and brake on.
5.
Insert the dial on the potentiometer shaft lightly against the
panel.
6.
Tighten set screw to potentiometer shaft.
9.52
(.374)
1.98
(.077)
POTENTIOMETER
POTENTIOMETER
MOUNTING HOLE
PANEL
ANTIROTATION
DEVICE
KEY SLOT
(INSIDE)
HARDWARE
SUPPLIED WITH
POTENTIOMETER
KEYED TO
ANTIROTATION DEVICE
TURNS-COUNTING
DIAL
SET SCREW
OUTER RING
PANEL HOLE
PATTERN
10.36
(.407)
TYP.
16.5
(.649)
3.30
(.129)
22.2
(.874)
MAX.
MIN.
18.1
(.712)
22.2
(.874)
9.53
(.375)
How To Order
Part
Accepts Shaft
Number
Diameter
Finish
H-22-6A
6.35 mm (.250 in.)
Satin chrome
H-22-6M
6 mm (.236 in.)
Satin chrome
H-22-3A
3.17 mm (.124 in.)
Satin chrome
H-22-6A-B
6.35 mm (.250 in.)
All black
H-22-6A-SB
6.35 mm (.250 in.)
Satin body/
black dial
DIMENSIONS:
MM
(INCHES)
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Dimensional Drawings
REV. 06/10




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