www.francejoint.com

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

|

|

EXAMPLE OF CODIFICATION

STANDARD CODIFICATION

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

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

Rod diameter _____ : Ød1 = 50.00 mm

Groove diameter __ : ØD1 = 65.50 mm

Part number______ : 157. 050DBK6

Family

Rod diameter

Friction ring material*

O'Ring materials*

157.

050

DB

K6

Part number -

L1

Ød2.1

C

Ød2.2

R2

R1

|

|

INSTALLATION DIMENSIONS

Rod

diameter

Ød1  f8/h9

Groove diameter

Groove width

Radial section

O’Ring

cross-section

O’Ring / X’Ring

cross-section

BECA 157

Standard range

BECA 158

Extended range

ØD1 H9

L1 0/+0.20

S

Ød2.1

Ød2.2

19.0 - 37.9

18.0 - 450.0

d1 + 11.00

4.20

5.50

3.53

1.78

38.0 - 199.9

30.0 - 650.0

d1 + 15.50

6.30

7.75

5.33

1.78

200.0 - 255.9

105.0 - 999.9

d1 + 21.00

8.10

10.50

6.99

2.62

256.0 - 649.9

120.0 - 999.9

d1 + 24.50

8.10

12.25

6.99

2.62

650.0 - 999.9

285.0 - 999.9

d1 + 28.00

9.50

14.00

8.40

3.53

---

650.0 - 999.9

d1 + 38.00

13.80

19.00

12.00

5.33

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 157 - 158