BECA 084A
Copie de BECA 083A
Description
The BECA 150 - 152 - 154 profiles are single acting composite rod seals composed of a filled PTFE friction ring and pre-tightened rubber O'Ring. They can be assembled in grooves according to standard ISO 7425/2. Option of connecting the seal to a back-up ring.
Advantages
Optimal sealing in static and dynamic applications
Low friction coefficient; no stick-slip effect
Excellent abrasion and extrusion resistance
Wide temperature range and excellent chemical resistance, depending on the material selected for the O'Ring
Applications
Mobile machinery
Injection presses
Machine tools
Presses
Standard cylinders
Dimensions
Technical data
Dimensions
Installation drawing
Technical data
Extrusion gaps
| Radial section S |
Radial extrusion gap F/2 |
||
|---|---|---|---|
| 10 MPa | 20 MPa | 40 MPa | |
| 2.45 | 0.30 | 0.20 | 0.15 |
| 3.65 | 0.40 | 0.25 | 0.15 |
| 5.35 | 0.50 | 0.30 | 0.20 |
| 7.55 | 0.70 | 0.40 | 0.25 |
| 10.25 | 0.80 | 0.60 | 0.35 |
| 12.00 | 0.90 | 0.70 | 0.40 |
| 13.65 | 1.00 | 0.80 | 0.50 |
| 19.00 | 1.20 | 0.90 | 0.60 |
Surface roughness
| Roughness | Dynamic surface area | Static surface area | Groove flanks |
|---|---|---|---|
| Ra | 0.05 - 0.2 µm | ≤ 1.6 µm | ≤ 3.2 µm |
| Rz | 0.40 - 1.6 µm | ≤ 6.3 µm | ≤ 10.0 µm |
| Rmax | 0.63 - 2.5 µm | ≤ 10.0 µm | ≤ 16.0 µm |
Chamfers and radius
| Radial section S |
Radius R1 |
Radius R2 |
Chamfer C |
|---|---|---|---|
| 2.45 | 0.30 | 0.40 | 3.00 |
| 3.65 | 0.30 | 0.60 | 3.00 |
| 5.35 | 0.30 | 1.00 | 3.00 |
| 7.55 | 0.30 | 1.30 | 5.00 |
| 10.25 | 0.30 | 1.80 | 6.00 |
| 12.00 | 0.30 | 1.80 | 8.00 |
| 13.65 | 0.30 | 2.50 | 10.00 |
| 19.00 | 0.30 | 3.00 | 12.00 |
Only on request