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BECA 390

BECA 390
beca_390_3d_v1
beca_390_3d_v2

Description

The BECA 390 profile is a polyurethane pneumatic cushioning seal.

Advantages

Effective and consistent damping effect with automatic centring

Technical data

Temperature

-30°C/+110°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

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

Dimensions
Materials
Technical data

Dimensions

Installation drawingLogement Gorge Joint d'amortissement pneumatique - Housing Groove Pneumatic shock absorber seal - BECA 390

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

Technical data

Housing Groove Pneumatic Shock Absorber Seal - BECA 390

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
22 dimensions found
390.0950154
Standard request
9,50 8,00 15,00 12,00 10,00 5,00 4,00 5,00
390.0120185
Standard request
12,00 10,00 18,00 15,50 13,00 5,00 4,10 4,80
390.0120207
Standard request
12,00 10,00 20,00 17,00 13,00 7,80 6,30 7,00
390.0140225
Standard request
14,00 12,00 22,00 18,50 15,00 5,50 4,50 5,20
390.0140227
Standard request
14,00 12,00 22,00 19,00 15,00 7,80 6,30 7,00
390.0160225
Standard request
16,00 14,00 22,00 19,50 17,00 5,50 4,50 5,20
390.0160247
Standard request
16,00 14,00 24,00 21,00 17,00 7,80 6,30 7,00
390.0180267
Standard request
18,00 16,00 26,00 23,00 19,00 7,80 6,30 7,00
390.0200287
Standard request
20,00 17,50 28,00 24,00 21,00 7,80 6,30 7,00
390.0220307
Standard request
22,00 19,50 30,00 26,00 23,00 7,80 6,30 7,00
390.0240327
Standard request
24,00 22,50 32,00 28,00 25,00 7,80 6,30 7,00
390.0250337
Standard request
25,00 23,50 33,00 29,00 26,00 7,80 6,30 7,00
390.0280367
Standard request
28,00 25,50 36,00 32,00 29,00 7,80 6,30 7,00
390.0300407
Standard request
30,00 27,50 40,00 35,00 31,50 7,80 6,20 7,00
390.0320427
Standard request
32,00 29,00 42,00 37,00 33,50 7,80 6,20 7,00
390.0340447
Standard request
34,00 31,00 44,00 39,00 35,50 7,80 6,30 7,00
390.0360467
Standard request
36,00 33,00 46,00 41,00 37,50 7,80 6,20 7,00
390.0400507
Standard request
40,00 37,00 50,00 45,00 41,50 7,80 6,20 7,00
390.0450557
Standard request
45,00 42,00 55,00 50,00 46,50 7,80 6,30 7,00
390.0500607
Standard request
50,00 47,00 60,00 55,00 51,50 7,80 6,20 7,00
390.0500671
Standard request
50,00 47,00 67,00 58,00 51,50 9,50 10,00 10,50
390.0570741
Standard request
57,00 54,00 74,00 65,00 60,00 9,50 10,00 10,50