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* The codes that define the materials are set out in the materials table on the previous page.

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EXAMPLE OF CODIFICATION

STANDARD CODIFICATION

Materials ________ : Friction ring, PTFE + 60% Bronze - Code DB

________________ : NBR 70 Shore A O'Ring - Code K6

Rod diameter _____ : Ød1 = 50.00 mm

Groove diameter __ : ØD1 = 65.10 mm

Part number______ : 151. 050DBK6

Family

Rod diameter

Friction ring material*

O'Ring material*

151.

050

DB

K6

Part number -

L1

C

R2

R1

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INSTALLATION DIMENSIONS

Rod

diameter

Ød1 f8/h9

Groove diameter

Groove width

Radial section

O’Ring

cross-section

BECA 151

Standard range

BECA 153

Light range

BECA 155

Heavy-duty range

ØD1 H9

L1 0/+0.20

S

Ød2

3.0 - 7.9

8.0 - 18.9

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d1 + 4.90

2.20

2.45

1.78

8.0 - 18.9

19.0 - 37.9

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d1 + 7.30

3.20

3.65

2.62

19.0 - 37.9

38.0 - 199.9

8.0 - 18.9

d1 + 10.70

4.20

5.35

3.53

38.0 - 199.9

200.0 - 255.9

19.0 - 37.9

d1 + 15.10

6.30

7.55

5.33

200.0 - 255.9

256.0 - 649.9

38.0 - 199.9

d1 + 20.50

8.10

10.25

6.99

256.0 - 649.9

650.0 - 999.9

200.0 - 255.9

d1 + 24.00

8.10

12.00

6.99

650.0 - 999.9

1000.0 - 1200.0

256.0 - 649.9

d1 + 27.30

9.50

13.65

8.40

1000.0 - **

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650.0 - 999.9

d1 + 38.00

13.80

19.00

12.00

For special applications > 40 MPa, we recommend using an H8/f8 tolerance (groove/rod) or selecting other, more suitable materials. Please

contact our experts.

HYDRAULIC SEALS | ROD SEALS |

BECA 151 - 153 - 155