Model 708

Vishay Spectrol

Precision Potentiometer

www.vishay.com

For technical questions, contact: sfer@vishay.com

Document Number: 57070

42

Revision: 02-Jul-07

DIMENSIONS in inches (millimeters)

SERVO MOUNT: 708 S

BUSHING MOUNT: 708 B

0.687

(17.45)

± 0.010

0.500

(12.70)

± 0.031

0.062

(1.57)

Ø 0.875

(22.22)

Ø 0.7500

(19.05)

+ 0.0000

- 0.0005

Ø 0.1248

(3.17)

+ 0.0000

- 0.0003

MTG. FACE

Ø 0.875

(22.22)

± 0.015

Ø 0.750

MAX.

(19.05)

0.062

(1.57)

0.687

(17.45)

± 0.031

0.500

(12.70)

± 0.010

0.250

(6.35)

± 0.015

Ø 0.875

(22.22)

Ø 0.4062

(10.32)

± 0.015

+ 0.0000

- 0.0010

Ø 0.1248

(3.17)

+ 0.0000

- 0.0003

MTG. FACE

0.062

(1.57)

0.308 MIN.

(7.82) TYP.

3

1

2

30°

TYP.

0.640 R MAX.

(16.26)

1

ADD 0.500 ± 0.002 (12.70) FOR EACH

ADDITIONAL SECTION

TOLERANCES: UNLESS OTHERWISE NOTED.

DECIMALS ± 0.005 ANGLES ± 2°

CW

SCHEMATIC

2

3

1

0.062

(1.57)

1

1

MECHANICAL SPECIFICATIONS

PARAMETER

Rotation

360° continuous

Bearing Type

Servo Mount:

Bushing Mount:

Ball bearing

Sleeve bearing

Torque (Maximum)

Servo, 1 Section

Bushing, 1 Section

Each Additional Section

STARTING

0.10 oz. - in (7.20 g - cm)

0.25 oz. - in (18.00 g - cm)

0.10 oz. - in (7.20 g - cm)

RUNNING

0.085 oz. - in (6.12 g - cm)

0.20 oz. - in (14.40 g - cm)

0.075 oz. - in (5.40 g - cm)

Runouts (Maximum)

Shaft Runout (TIR/in)

Pilot Dia. Runout (TIR)

Lateral Runout (TIR)

Shaft End Play

Shaft Radial Play

SERVO

0.002" (0.05 cm)

0.002" (0.05 cm)

0.002" (0.05 cm)

0.005" (0.13 cm)

0.002" (0.05 cm)

BUSHING

0.002" (0.05 cm)

0.002" (0.05 cm)

0.005" (0.13 cm)

0.005" (0.13 cm)

0.004" (0.10 cm)

Weight (Maximum)

Single Section:

Each Additional Section:

0.6 oz. (17.0 g)

0.2 oz. (5.67 g)

Ganging

6 sections max, terminal alignment, added sections within ± 10° of section 1 terminals

Moment of Inertia