BECA 385

BECA 385
beca_385_3d_v1
beca_385_3d_v2

Description

The BECA 385 profile is a U-ring type single acting rod seal with asymmetrical rubber lips for low-pressure applications.

Advantages

Reliable sealing for "dry air" pneumatic applications when mineral oils or greases may be present
Excellent wear resistance
Very good sealing

Technical data

Temperature

-30°C/+150°C

Pressure

1.6 MPa

Speed

1 m/s

Medias

Lubricated air
Oil-free air
Non-aggressive gases

Applications

Shock absorbers
Distributor
Standard cylinders

Materials

NBR 80 Shore A
FKM 80 Shore A

Dimensions
Materials
Technical data

Dimensions

Installation drawingLogement Gorge Joint de tige - Housing Groove Gland Rod seal BECA 385

Materials

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

Technical data

Housing Groove Gland Rod Seal - BECA 385

Extrusion gaps

Pressure
MPa
Radial extrusion gap
F/2
1.0 MPa 0.25
1.2 MPa 0.20
6.5 MPa 0.10
8.0 MPa 0.05

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 0.30 0.50 2.00
4.00 0.30 0.50 2.00
5.00 0.40 0.60 2.50
6.00 0.50 0.70 3.00
7.50 0.80 1.00 4.00
10.00 0.80 1.00 5.00
115 dimensions found
385.1003008
Standard request
3,17 8,75 3,96 5,50
385.1004011
Standard request
4,76 11,11 3,96 5,50
385.1006012
Standard request
6,00 12,00 4,00 5,50
385.2006012
Standard request
6,35 12,70 3,96 5,50
385.1007014
Standard request
7,93 14,28 3,96 5,50
385.008014E
Standard request
8,00 14,00 4,00 4,80
385.08014F6
Standard request
8,00 14,00 4,00 5,50
385.1008014
Standard request
8,00 14,00 4,00 5,50
385.1008016
Standard request
8,00 16,00 5,50 7,00
385.1009016
Standard request
9,52 16,50 3,96 5,50
385.0100184
Standard request
10,00 18,00 4,00 5,00
385.1010018
Standard request
10,00 18,00 5,50 7,00
385.1011019
Standard request
11,11 19,05 3,96 5,50
385.1012020
Standard request
12,00 20,00 5,50 7,00
385.1012021
Standard request
12,70 21,00 5,10 7,00
385.14018K6
Standard request
14,00 18,00 2,90 3,00
385.1014022
Standard request
14,00 22,00 5,50 7,00
385.1014020
Standard request
14,28 20,63 4,76 6,00
385.1015022
Standard request
15,87 22,22 4,76 6,00
385.15224C0
Standard request
15,87 22,22 4,76 6,00
385.1016024
Standard request
16,00 24,00 5,50 7,00
385.1017023
Standard request
17,46 23,81 4,60 6,00
385.1018025
Standard request
18,00 25,00 4,50 6,00
385.1825SP9
Standard request
18,00 25,00 4,50 6,00
385.1018026
Standard request
18,00 26,00 5,50 6,00
385.0180305
Standard request
18,00 30,00 5,50 6,00
385.1019025
Standard request
19,08 25,40 4,76 6,00
385.1020028
Standard request
20,00 28,00 5,50 7,00
385.2020028
Standard request
20,63 28,58 4,76 6,00
385.1022030
Standard request
22,00 30,00 5,50 6,00
385.1022-22
Standard request
22,22 31,75 4,76 6,00
385.1023036
Standard request
23,81 36,51 6,35 8,00
385.1025035
Standard request
25,00 35,00 7,00 8,50
385.1025038
Standard request
25,40 38,10 6,35 8,00
385.1026036
Standard request
26,99 36,51 6,35 8,00
385.1028036
Standard request
28,00 36,00 5,50 7,00
385.1028038
Standard request
28,00 38,00 7,00 7,50
385.1028041
Standard request
28,58 41,28 7,93 9,50
385.1030038
Standard request
30,16 38,10 6,35 8,00
385.1031044
Standard request
31,75 44,45 6,35 8,00
385.32040CA
Standard request
32,00 40,00 5,00 6,00
385.1032042
Standard request
32,00 42,00 7,00 8,50
385.1032045
Standard request
32,00 45,00 10,00 11,00
385.0330416
Standard request
33,00 40,87 4,50 6,00
385.1033040
Standard request
33,34 40,63 4,60 6,00
385.1034050
Standard request
34,93 50,80 7,93 9,50
385.1036046
Standard request
36,00 46,00 7,00 7,50
385.1036050
Standard request
36,51 50,80 7,93 9,50
385.1038050
Standard request
38,10 50,80 9,52 11,00
385.1039055
Standard request
39,69 55,96 9,52 11,00
385.1040046
Standard request
40,00 46,00 3,60 4,40
385.1040050
Standard request
40,00 50,00 7,00 8,50
385.041050G
Standard request
41,28 50,80 5,55 7,00
385.1041050
Standard request
41,28 50,80 5,55 7,00
385.1042050
Standard request
42,00 50,00 5,50 7,00
385.1042053
Standard request
42,86 53,98 9,52 11,00
385.1044057
Standard request
44,45 57,15 7,93 9,50
385.1045055
Standard request
45,00 55,00 7,00 7,50
385.1046060
Standard request
46,04 60,33 9,52 11,00
385.1047063
Standard request
47,63 63,50 9,52 11,00
385.1049066
Standard request
49,21 66,68 9,52 11,00
385.1050060
Standard request
50,00 60,00 7,00 7,50
385.1050073
Standard request
50,80 73,03 11,11 12,50
385.1053069
Standard request
53,98 69,85 9,52 11,00
385.1056068
Standard request
56,00 68,00 7,00 7,50
385.2056068
Standard request
56,00 68,00 8,50 10,00
385.1057069
Standard request
57,15 69,85 7,93 9,50
385.1060072
Standard request
60,00 72,00 8,50 10,00
385.1060076
Standard request
60,33 76,20 7,93 9,50
385.1063075
Standard request
63,00 75,00 8,50 10,00
385.1063076
Standard request
63,50 76,20 7,93 9,50
385.1065077
Standard request
65,00 77,00 8,50 10,00
385.1066079
Standard request
66,68 79,38 9,52 11,00
385.1069090
Standard request
69,85 90,90 9,52 11,00
385.1070082
Standard request
70,00 82,00 8,50 9,50
385.1073082
Standard request
73,03 82,55 9,52 11,00
385.1076088
Standard request
76,20 88,90 9,52 11,00
385.1079098
Standard request
79,38 98,43 9,52 11,00
385.1080092
Standard request
80,00 92,00 8,50 10,00
385.1082095
Standard request
82,55 95,25 7,93 9,50
385.1085098
Standard request
85,73 98,43 9,52 11,00
385.1088101
Standard request
88,90 101,60 9,52 11,00
385.1090102
Standard request
90,00 102,00 8,50 9,50
385.1092106
Standard request
92,08 106,40 7,93 9,50
385.1095111
Standard request
95,25 111,10 9,52 11,00
385.1098107
Standard request
98,43 107,95 9,52 11,00
385.1100112
Standard request
100,00 112,00 8,50 10,00
385.1100115
Standard request
100,00 115,00 10,00 11,50
385.1101111
Standard request
101,60 111,10 5,75 7,00
385.1061177
Standard request
106,30 117,20 7,20 7,60
385.1107127
Standard request
107,95 127,00 9,52 11,00
385.1110130
Standard request
110,00 130,00 14,00 15,50
385.1114146
Standard request
114,30 146,05 12,70 14,00
385.1120136
Standard request
120,65 136,50 7,14 8,50
385.1125145
Standard request
125,00 145,00 14,00 15,50
385.1127146
Standard request
127,00 146,05 12,70 14,00
385.1133152
Standard request
133,35 152,40 12,70 14,00
385.1139157
Standard request
139,70 157,52 7,14 8,50
385.1140160
Standard request
140,00 160,00 14,00 15,50
385.1146165
Standard request
146,05 165,10 12,70 14,00
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