H-46-6A Bourns Inc., H-46-6A Datasheet

H-46-6A

Manufacturer Part Number

H-46-6A

Description

COUNTING DIAL 0-20 TURNS

Manufacturer

Bourns Inc.

Series

H-46r

Type

Dialr

Datasheet

1.H-46-6A.pdf (1 pages)

Specifications of H-46-6A

Shaft Size

0.25" (6.35mm)

Number Of Turns

Design

Hex Set Screw

Diameter

17.5 mm

Color

Satin Chrome

Application

Power supplies, sensors, medical, automation, test equipment.

Dial Division

100 per Turn

Dial Type

Turns-Counting, Analog

Diameter, Shaft

0.25 "

Dimensions

1.811"Dia×0.944"L

Finish

Satin Chrome

Mounting Type

Panel

Range

20 Turns

Size, Hex Key

0.05 in.

Torque, Tightening

16.94 N-cm (Min.)

Weight

2.5 Oz.

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

For Use With

For precision potentiometers or other rotating devices up to 20 turns

Lead Free Status / RoHS Status

Lead free / RoHS Compliant, Lead free / RoHS Compliant

Other names

Q1144838

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3. Loosen set screws in knob of dial. Set dial to “0.0” reading.

4. While holding outer ring of dial, position unit lightly against

(1.811)

Number of Turns ............................................................................................................................................................................. 0 to 20

Dial Divisions ...........................................................................................................................................................................100 per turn

Readability – Over 10 Turns .....................................................................................................................................Within 1/100 of a turn

Torque With Brake Engaged ..............................................................................................................21.18 N-cm (30.0 oz.-in.) maximum

Markings ..................................................................................................................................................... Black on chrome background

Locking Brake .......................................................................................................................................................................................Yes

Weight ............................................................................................................................................................................73 grams (2.5 oz.)

Set Screw ..........................................................................................................................................................UNC N4-44, one included

Set Screw Tightening Torque ...............................................................................................................16.94 N-cm (1.5 lbs.-in.) minimum

Hex Key Size ............................................................................................................................................................................0.05 in. hex

Shaft Diameter Requirements ................................................................................................................................... Refer to chart below

Shaft Extension Beyond Panel ................................................................................................................... 17.5 mm (0.689 in.) minimum

Bushing Extension Beyond Panel ................................................................................................................ 4.5 mm (0.177 in.) maximum

46.0

Mechanical and Physical Characteristics

Shaft and Bushing Requirements

Dimensional Drawings

panel. Tighten knob set screws to potentiometer shaft.

(.492)

12.50

(.944)

24.0

H-46 MOUNTING INSTRUCTIONS

Using the existing Antirotation Lug

1. Drill 3.2 mm (0.125) diameter antirotation

2. Mount potentiometer shaft counterclock-

pin hole on vertical centerline 14.3 mm

(0.562) below center of potentiometer

mounting hole.

wise to obtain minimum resistance or

voltage ratio. This is not necessarily

identical with the mechanical stop.

DIMENSIONS:

(.405)

10.31

(.562)

14.30

DIA.

PANEL LAYOUT

(INCHES)

(.124)

3.17

Features

■

H-46 Turns-Counting Dial

Large package size

For use with precision potentiometers up to

20 turns

Excellent readability

Precision feel - no backlash

Cast housing

RoHS compliant*

DIA.

4. Loosen set screws in knob of dial. Set dial to “0.0” reading.

5. While holding outer ring of dial, position unit lightly against panel.

Tighten knob set screws to potentiometer shaft.

Customers should verify actual device performance in their speciﬁ c applications

*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.

Applications

■

Power supplies

Sensors

Medical

Automation

Test equipment

H-46-6M

Number

H-46-6A

How To Order

Speciﬁ cations are subject to change without notice.

Part

Using the Antirotation Device

1. Remove antirotation lug from dial

2. Mount potentiometer in panel with

3. Turn potentiometer shaft counter-

by using pliers.

antirotation device nut (supplied

with dial) and lockwasher (supplied

with potentiometer).

clockwise to obtain minimum

resistance or voltage ratio. This is

not necessarily identical with the

mechanical stop.

23.5 mm (0.925 in.) maximum

Accepts Shaft

Diameter

6.35 mm (.250)

6 mm (.236)

Finish

Satin

Chrome

Satin

Chrome

REV. 03/09

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