H-22-3A - Bourns - Product.Network

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

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.

How To Order

Accepts

Part Shaft

Number Diameter Finish

H-22-6A 6.35 Satin

(.250) chrome

H-22-6M 6.0 Satin

(.236) chrome

H-22-3A 3.17 Satin

(.124) chrome

H-22-6A-B 6.35 All black

(.250)

H-22-6A-SB 6.35 Satin body/

(.250) black dial

DIMENSIONS: MM

(INCHES)

*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

Speciﬁ cations are subject to change without notice.

Customers should verify actual device performance in their speciﬁ c applications.

Dimensional Drawings

REV. 04/12

*RoHS COMPLIANT

MAX.

MIN.

18.1

(.712) 14.50

(.571)

22.2

(.874)

9.53

(.375) 3.30

(.130)

1.95

(.077) DIA.

4.00

(.157)

21.30

(.839)

21.30

(.839)

16.5

(.649)

22.2

(.874)