Model 552

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Vishay Spectrol

Revision: 27-Mar-15

2

Document Number: 57067

For technical questions, contact: sferprecisionpot@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

DIMENSIONS in inches (millimeters)

MECHANICAL SPECIFICATIONS

PARAMETER

Mechanical rotation

1080° +10° -0°

Bearing type: servo mount



Bushing mount

Ball bearing

Sleeve bearing

Torque (maximum)



Servo: 1 section



Bushing: 1 section



Each additional section

STARTING

0.4 oz. - in (28.8 g - cm)

0.5 oz. - in (36.0 g - cm)

0.3 oz. - in (21.6 g - cm)

RUNNING

0.3 oz. - in (21.6 g - cm)

0.4 oz. - in (28.8 g - cm)

0.2 oz. - in (14.4 g - cm)

Mechanical 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)

0.003" (0.08 cm)

Weight (maximum): single section



Additional section

0.75 oz. (21.7 g)

0.60 oz. (17.0 g)

Stop strength

100 oz. - in static (7.2 kg - cm)

Ganging

3 sections maximum, terminal alignment added

sections within ± 10° of section 1 terminals

Moment of inertia

0.30 g - cm2 per section maximum

0.948

(24.08)

± 0.010

0.687

(17.45)

0.312

(7.92)

± 0.031

± 0.015

Ø 0.1248 TYP.

(3.17)

+ 0.0000

- 0.0003

Ø 0.281

(7.14)

+ 0.000

- 0.001

1/

4 - 32 UNEF 2A

MTG. FACE

0.062

± 0.015

0.875

(22.22)

± 0.015

0.168 MIN.

(4.27)

1

2

3

45°

± 10°

0.172 TYP.

(4.37)

± 0.015

0.594 R

MAX.

(15.09)

1.036

(26.31)

± 0.010

0.375

(9.52)

± 0.031

0.057 MIN.

(1.45)

0.062

(1.57)

Ø 0.875

(22.22)

Ø 0.7500

(19.05)

+ 0.0000

- 0.0005

Ø 0.750 MAX.

(19.05)

MTG. FACE

0.257 MIN.

(6.53)

1

2

1

ADD 0.782 ± 0.002 (19.86) FOR EACH

ADDITIONAL SECTION

TOLERANCES: UNLESS OTHERWISE NOTED.

DECIMALS ± 0.005 ANGLES ± 2°

CW

SCHEMATIC

BUSHING MOUNT: 552B/552-1

SERVO MOUNT: 552S/552-2

2

3

1

1

1

0.062

(1.57)

3