EN
Telephone

+33 (0)2 51 42 13 76

Search
Quality & expertise
for your sealing needs

BECA 231/AE

BECA 231/AE
BECA 231/AE
beca_231_ae_3d_v1
beca_231_ae_3d_v2

Description

The BECA 231/AE profile is a polyurethane U-ring type single acting rod seal with asymmetrical lips, with a POM back-up ring integrated into the back. It can be assembled in a groove according to standard ISO 5597.

Advantages

Optimised sealing effect at both high and low pressures
Excellent abrasion and wear resistance
Assembly by deformation in closed groove

Technical data

Temperature

-30°C/+110°C

Pressure

45 MPa

Speed

0.5 m/s

Medias

Mineral hydraulic oils

Applications

Mobile machinery
Injection presses
Machine tools
Presses
Hydraulic cylinders

Materials

Profiled seal

PU 93 Shore A - Blue
PU 96 Shore A - Blue
High temp. PU 96 Shore A - Beige

Back-up ring

Polyoxymethylene (POM)

Dimensions
Materials
Technical data

Dimensions

Installation drawingLogement Gorge Joint de tige - Housing Groove Gland Rod seal BECA 231/AE

Materials

PU

Polyurethane is a material that has the elastic properties of rubber. The proportion in its composition (diisocyanate, polyol, chain extender) is determined by its properties. This material is characterised by a strong mechanical resistance, good wear resistance, high elastic modulus, good flexibility and a very good ozone and oxidation resistance.

Chemical resistance Pure aliphatic hydrocarbons (propane, butane)
Mineral oils and greases
Silicone oils and greases
Water up to +50°C
Compatibility issue Ketones, esters, ethers, alcohols and glycols
Hot water, steam, alkalis, amines and acids
Temperature range -30°C/+90°C
-30°C / +110°C with our PUHT

Polyoxymethylene - POM

Polyoxymethylene (POM or polyacetal) belongs to the thermoplastics, which have a number of advantages - strong mechanical resistance, good creep strength, high resistance to shocks, particularly at low temperatures, good wear resistance, good sliding coefficient, excellent machinability and good dielectric properties. The low water absorption coefficient, unlike polyamide (PA), also gives this material an excellent dimensional stability.

Chemical resistance

Aliphatic hydrocarbons (propane, butane, petroleum, diesel fuel)
Mineral oils and greases
Fire-resistant fluids (HFA, HFB and HFC)
Water

Compatibility issue Acids
Temperature range -50°C/+115°C

Technical data

Housing Groove Gland Rod Seal - BECA 231/AE

Extrusion gaps

Rod diameter
Ød1
Radial extrusion gap
F/2
≤ 5 MPa ≤ 10 MPa ≤ 20 MPa ≤ 30 MPa ≤ 40 MPa ≤ 45 MPa
≤ 60 mm 0.40 0.30 0.20 0.15 0.10 0.07
> 60 mm 0.50 0.40 0.30 0.20 0.15 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
3.50 0.20 0.40 2.00
4.00 0.20 0.60 2.50
5.00 0.20 1.00 2.50
7.50 0.20 1.00 4.00
12.50 0.20 1.30 6.00
20.00 0.20 1.80 8.00
16 dimensions found
231.1828AEG
Standard request
18,00 28,00 8,00 9,00
231.R103004
Standard request
30,00 40,00 10,00 11,00
231.350456E
Standard request
35,00 45,00 6,50 7,50
231.R703504
Standard request
35,00 45,00 6,50 7,50
231.035045E
Standard request
35,00 45,00 10,00 11,00
231.R035045
Standard request
35,00 45,00 10,00 11,00
231.04555AE
Standard request
45,00 55,00 7,00 8,00
231.04658AE
Standard request
46,00 58,00 12,00 13,00
231.2055065
Standard request
55,00 65,00 12,00 13,00
231.E070083
Standard request
70,00 83,00 13,00 14,00
231.1001154
Standard request
100,00 115,00 13,00 14,00
231.0105BAE
Standard request
105,00 125,00 12,00 13,00
231.105125E
Standard request
105,00 125,00 15,00 16,00
231.E130150
Standard request
130,00 150,00 16,00 17,00
231.200225E
Standard request
200,00 225,00 15,00 16,00
231.E200225
Standard request
200,00 225,00 20,00 21,00