POPR27

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Vishay MCB

Revision: 11-May-2022

4

Document Number: 32522

For technical questions, contact: mcbprecisionpot@vishay.com

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OPTION 4: 4 CUPS WITH INTERMEDIATE HOUSING

OPTION 5: SPECIFIC FLANGE AND SHAFT (EXAMPLE OF CUSTOMIZATION, OTHER VARIANTS ALSO FEASIBLE)

External involute spline data per ANSI B92.1A

Fillet root side fit table 38

Number of teeth: 8 (-1)

Spline pitch: 48/96

Pressure angle: 30°

Base diameter: 3.6661852

Pitch diameter (A): 4.23333

Major diameter: 4.7244 / 4.7752

Form diameter: 3.81

Minor diameter: 2.921 min.

Circular tooth thickness

Maximum effective: 0.8910

Minimum actual: 0.8525

Maximum actual: 0.8694

Minimum measurements over pins: 5.79374 / 5.8166

Pin diameter: 1.016 (ref.)

Fillet radius minimum: 0.1778

DIMENSIONS in millimeters

R17.5 max.

Shaft with slot flus

with rear side

+ 0.2

0

2 x Ø 2.5

at 180°

Working depth: 2

Ø 23 ± 0.1

37 ± 0.5

8.5 ± 0.5

Ø 3.175 0

- 0.013

U/2 ± 10°

0.025 B

B

14

R3 (x 8)

R1.6

(x

8)

R7

(x

8)

14

90° (x 4)

2°

(x

4)

7 (x

4)

2°

(x

4)

1.5

3.7

0

-0.1

7.4 max.

14.3 ± 0.1

3.7 to 5

(useful spline length)

Ch. 0.25 à 45°

D

R17.9

± 0.1

(x 4)

R21.1

± 0

.1 (x

4)

R22.5

± 0.05

(x

4)

Detail D

Mechanical position when

the voltage (U) = U/2

Ø 2

Depth: 7 ± 0.5

9 ± 0.02

Ø 1