BECA 302/AE

BECA 302/AE
BECA 302/AE
beca_302_AE_3d_v1
beca_302_AE_3d_v2

Description

The BECA 302/AE profile is a single acting compact rod seal composed of a profiled FKM seal and a bronze-filled PTFE back-up ring on the back. It can be assembled in a groove according to standard ISO 5597.

Advantages

Optimised sealing effect
Good chemical compatibility and wide temperature range, depending on the material chosen
Excellent wear resistance
Excellent extrusion resistance

Technical data

Temperature

-20°C/+200°C

Pressure

35 MPa

Speed

0.5 m/s

Medias

Mineral hydraulic oils
Fire-resistant liquids
Biocompatible fluids
Water
Others (contact our experts)

Applications

Mobile machinery
Material handling - Lifting
Presses
Hydraulic cylinders

Materials

Profiled seal

FKM 80 Shore A

Back-up ring

Bronze-filled PTFE

Dimensions
Materials
Technical data

Dimensions

Installation drawingLogement Gorge Joint de tige - Housing Groove Gland Rod seal BECA 302/AE

Materials

FKM

Depending on their structure and fluorine content, the chemical resistance and resistance to the cold in fluororubbers can vary. This FKM-based rubber is very often used for high-temperature hydraulics and pneumatics, for industrial valves, injection/fuel systems, motor seals and high-vacuum systems.

Chemical resistance Mineral oils and greases, ASTM n°1, IRM 902 and IRM 903 oils.
Fire-resistant liquids (HFD)
Silicone oils and greases
Mineral and vegetable oils and greases
Aliphatic hydrocarbons (propane, butane, petroleum)
Aromatic hydrocarbons (benzene, toluene)
Chlorinated hydrocarbons (trichlorethylene)
Fuel (including high alcohol content)
Atmospheric and ozone agents
Compatibility issue Glycol-based brake fluids
Ammonia gas
Organic acids with a low molecular weight (formic and acetic acids)
Temperature range -20°C/+200°C
-40°C / +200°C with our FKM GLT on request

Bronze-filled PTFE

PTFE is a thermoplastic polymer made of tetrafluoroethylene with exceptional properties - very low friction coefficient (adhesive friction and sliding friction are almost equal), physiologically safe for temperatures up to +200°C, excellent electrical insulation properties, and excellent chemical compatibility with the majority of fluids. On the other hand, as this material is plastic and not elastic, so it cannot easily replace rubber bases.

Between 40% and 60% of bronze is added to the PTFE as a filler. This machined material has excellent wear resistance, low creep deformation and good thermal conductivity.

Technical data

Housing Groove Gland Rod Seal - BECA 302/AE

Extrusion gaps

Pressure
MPa
Radial extrusion gap
F/2
15 MPa 0.20
25 MPa 0.10
35 MPa 0.10

Surface roughness

Roughness Dynamic surface area Static surface area Groove flanks
Ra 0.1 - 0.4 µm ≤ 1.6 µm ≤ 3.2 µm
Rz 0.63 - 2.5 µm ≤ 6.3 µm ≤ 10.0 µm
Rmax 1.0 - 4.0 µm ≤ 10.0 µm ≤ 16.0 µm

Chamfers and radius

Radial section
S
Radius
R1
Radius
R2
Chamfer
C
4.00 0.20 0.40 2.00
5.00 0.40 0.70 2.50
6.00 0.70 1.10 3.00
7.50 0.70 1.10 4.00
10.00 1.00 1.10 5.00
22 dimensions found
302.016AG6E
Standard request
16,00 26,00 8,00 9,00
302.018025E
Standard request
18,00 25,00 5,60 6,30
302.018AG6E
Standard request
18,00 26,00 5,70 6,30
302.022029E
Standard request
22,00 29,00 5,00 5,60
302.022BG6E
Standard request
22,00 30,00 5,70 6,30
302.022AG6E
Standard request
22,00 32,00 8,00 9,00
302.025BG6E
Standard request
25,00 33,00 6,40 7,00
302.028BG6E
Standard request
28,00 36,00 5,70 6,30
302.028CG6E
Standard request
28,00 38,00 7,20 8,00
302.028AG6E
Standard request
28,00 40,00 8,00 9,00
302.036BG6E
Standard request
36,00 46,00 7,20 8,00
302.036AG6E
Standard request
36,00 48,00 8,00 9,00
302.040050E
Standard request
40,00 50,00 10,00 11,00
302.045053E
Standard request
45,00 53,00 5,70 6,30
302.045055E
Standard request
45,00 55,00 7,20 8,00
302.045BG6E
Standard request
45,00 55,00 7,20 8,00
302.045AG6E
Standard request
45,00 60,00 12,50 13,50
302.350060E
Standard request
50,00 60,00 7,20 8,00
302.356066E
Standard request
56,00 66,00 6,80 7,50
302.056AG6E
Standard request
56,00 71,00 12,50 13,50
302.070AG6E
Standard request
70,00 85,00 12,50 13,50
302.390105E
Standard request
90,00 105,00 11,50 12,50