BECA 320

BECA 320
beca_320_3d_v1
beca_320_3d_v2

Description

The BECA 320 profile is a U-ring type single acting rod/piston seal with symmetrical lips composed of a profiled polyurethane seal and a NBR O'Ring to preserve its elastic memory. It can be assembled in a groove according to standard ISO 5597.

Advantages

Very good sealing at low pressures
Elastic memory preserved using the O'Ring
Excellent abrasion resistance

Technical data

Temperature

-30°C/+100°C

Pressure

40 MPa

Speed

0.5 m/s

Medias

Mineral hydraulic oils

Applications

Agriculture
Mobile machinery
Lifting systems
Injection presses
Hydraulic cylinders

Materials

Profiled seal

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

O'Ring

NBR 70 Shore A

Dimensions
Materials
Technical data

Dimensions

Installation drawingLogement Gorge Joint de tige / Piston - Housing Groove Gland Rod / Piston seal 320

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 (short term peak at 150°C)

NBR

Nitrile rubber (NBR) is the general term for acrylonitrile-butadiene copolymer. The ACN content can vary between 18% and 50%. While the acrylonitrile content is important, the resistance to oil and fuel is more so. Conversely, the elasticity and compression set are not as good. The NBR has good mechanical properties and good wear resistance. However, its resistance to atmospheric agents and the ozone is relatively low.

Chemical resistance Aliphatic hydrocarbons (propane, butane, petroleum, diesel fuel)
Mineral oils and greases
Fire-resistant fluids (HFA, HFB and HFC)
Diluted acids, low-temperature alkaline and saline solutions
Water (up to +100°C max)
Compatibility issue Fuels with high aromatic content
Aromatic hydrocarbons (benzene)
Chlorinated hydrocarbons (trichlorethylene)
Polar solvents (ketone, acetone, acetic acid, ethylene-ester)
Strong acids
Glycol-based brake fluids
Atmospheric and ozone agents
Temperature range -30°C/+100°C
-40°C / +100°C with our low-temperature NBR

Technical data

Housing Groove Gland Rod/Piston Seal - BECA 320

Extrusion gaps

Pressure
MPa
Radial extrusion gap
F/2
20 MPa 0.30
25 MPa 0.25
35 MPa 0.15
40 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
3.00 0.20 0.40 2.00
4.00 0.40 0.60 2.50
5.00 0.80 1.00 2.50
7.50 0.80 1.00 4.00
10.00 0.80 1.00 5.00
149 dimensions found
320.7009022
Standard request
9,50 22,00 6,50 7,00
320.6010018
Standard request
10,00 18,00 5,70 6,30
320.8010020
Standard request
10,00 20,00 7,30 8,00
320.7011018
Standard request
11,10 18,00 6,50 7,00
320.6012020
Standard request
12,00 20,00 5,70 6,30
320.8012022
Standard request
12,00 22,00 7,30 8,00
320.5013023
Standard request
13,40 23,00 5,00 5,60
320.6014022
Standard request
14,00 22,00 5,70 6,30
320.8014024
Standard request
14,00 24,00 7,30 8,00
320.5016023
Standard request
16,00 23,00 5,00 5,60
320.6016024
Standard request
16,00 24,00 5,70 6,30
320.8016026
Standard request
16,00 26,00 7,30 8,00
320.5018025
Standard request
18,00 25,00 5,00 5,60
320.6018026
Standard request
18,00 26,00 5,70 6,30
320.8018028
Standard request
18,00 28,00 7,30 8,00
320.5020027
Standard request
20,00 27,00 5,00 5,60
320.6020028
Standard request
20,00 28,00 5,70 6,30
320.7020028
Standard request
20,00 28,00 6,40 7,00
320.8020030
Standard request
20,00 30,00 7,30 8,00
320.5022029
Standard request
22,00 29,00 5,00 5,60
320.6022030
Standard request
22,00 30,00 5,70 6,30
320.8022032
Standard request
22,00 32,00 7,20 8,00
320.5025032
Standard request
25,00 32,00 5,00 5,60
320.6025033
Standard request
25,00 33,00 5,70 6,30
320.7025033
Standard request
25,00 33,00 6,40 7,00
320.8025035
Standard request
25,00 35,00 7,30 8,00
320.1025038
Standard request
25,40 38,10 14,30 15,00
320.6028036
Standard request
28,00 36,00 5,70 6,30
320.8028038
Standard request
28,00 38,00 7,20 8,00
320.1028043
Standard request
28,00 43,00 11,50 12,50
320.5028034
Standard request
28,60 34,90 4,50 5,60
320.6030038
Standard request
30,00 38,00 5,70 6,30
320.7030038
Standard request
30,00 38,00 6,40 7,00
320.8030040
Standard request
30,00 40,00 7,20 8,00
320.3184138
Standard request
31,80 41,30 7,90 8,50
320.6032040
Standard request
32,00 40,00 5,70 6,30
320.7032042
Standard request
32,00 42,00 6,30 7,00
320.8032042
Standard request
32,00 42,00 7,20 8,00
320.1032045
Standard request
32,00 45,00 10,00 11,00
320.1032047
Standard request
32,00 47,00 11,50 12,50
320.3494457
Standard request
34,90 44,45 7,90 8,50
320.6035043
Standard request
35,00 43,00 5,70 6,30
320.7035043
Standard request
35,00 43,00 6,40 7,00
320.6036044
Standard request
36,00 44,00 5,70 6,30
320.8036046
Standard request
36,00 46,00 7,20 8,00
320.1036051
Standard request
36,00 51,00 11,50 12,50
320.9037047
Standard request
37,00 47,00 8,00 9,00
320.4038044
Standard request
38,00 44,00 3,20 4,00
320.8038053
Standard request
38,70 53,10 7,00 8,00
320.6040048
Standard request
40,00 48,00 5,70 6,30
320.8040050
Standard request
40,00 50,00 7,20 8,00
320.1040050
Standard request
40,00 50,00 10,00 11,00
320.1040055
Standard request
40,00 55,00 11,50 12,50
320.4135089
Standard request
41,30 50,80 9,52 10,00
320.6042050
Standard request
42,00 50,00 5,70 6,30
320.0440549
Standard request
44,45 54,00 9,52 10,00
320.1044057
Standard request
44,45 57,15 9,52 10,00
320.8045055
Standard request
45,00 55,00 7,20 8,00
320.6045053
Standard request
45,00 53,00 5,70 6,30
320.8045053
Standard request
45,00 53,00 8,20 9,00
320.1045060
Standard request
45,00 60,00 11,50 12,50
320.4765719
Standard request
47,62 57,15 9,52 10,00
320.6050058
Standard request
50,00 58,00 5,70 6,30
320.8050060
Standard request
50,00 60,00 7,20 8,00
320.1050060
Standard request
50,00 60,00 10,00 11,00
320.1050061
Standard request
50,00 60,00 11,50 12,50
320.1050065
Standard request
50,00 65,00 11,50 12,50
320.5050060
Standard request
50,75 60,20 5,00 5,60
320.8053063
Standard request
53,00 63,00 7,50 8,50
320.5396356
Standard request
53,98 63,50 6,35 7,00
320.6055063
Standard request
55,00 63,00 5,70 6,30
320.1055063
Standard request
55,00 63,00 12,30 13,00
320.7055065
Standard request
55,00 65,00 6,80 7,50
320.7056066
Standard request
56,00 66,00 6,80 7,50
320.1056071
Standard request
56,00 71,00 10,50 11,50
320.2056071
Standard request
56,00 71,00 11,50 12,50
320.1056076
Standard request
56,00 76,00 15,00 16,00
320.0570669
Standard request
57,20 66,70 9,52 10,00
320.5726999
Standard request
57,20 69,90 9,52 10,20
320.8060068
Standard request
60,00 68,00 8,20 9,00
320.7060070
Standard request
60,00 70,00 6,80 7,50
320.3060070
Standard request
60,00 70,00 12,00 13,00
320.1060071
Standard request
60,00 71,00 10,00 11,00
320.8061069
Standard request
61,00 69,00 8,20 9,00
320.7063073
Standard request
63,00 73,00 6,80 7,50
320.2063078
Standard request
63,00 78,00 11,50 12,50
320.1063083
Standard request
63,00 83,00 15,00 16,00
320.6357309
Standard request
63,50 73,03 9,52 10,00
320.6357629
Standard request
63,50 76,20 9,52 10,20
320.1064072
Standard request
64,00 72,00 13,00 14,00
320.9065080
Standard request
65,00 80,00 8,00 9,00
320.8068076
Standard request
68,00 76,00 8,20 9,00
320.1069082
Standard request
69,85 82,55 9,52 10,00
320.7070080
Standard request
70,00 80,00 6,80 7,50
320.2070085
Standard request
70,00 83,00 11,50 12,50
320.1070085
Standard request
70,00 85,00 11,50 12,50
320.1070090
Standard request
70,00 90,00 15,00 16,00
320.7072082
Standard request
72,00 82,00 6,80 7,50
320.8075083
Standard request
75,00 83,00 8,20 9,00
320.8076084
Standard request
76,00 84,00 8,20 9,00
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