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BECA 520 - 522 - 524

BECA 520 - 522 - 524
BECA 520
beca_520_3d_v1
beca_520_3d_v2

Description

The BECA 520-522-524 profiles are double acting composite piston seals composed of a pre-tightened rubber O'Ring and a custom-made polyurethane friction ring.

Advantages

Optimal sealing in static and dynamic applications
Excellent abrasion and wear resistance
Assembled by deformation

Technical data

Temperature

-30°C/+100°C

Pressure

25 MPa

Speed

0.5 m/s

Medias

Mineral hydraulic oils

Applications

Agriculture
Light and medium-sized industry
Machine tools
Material handling/Lifting

Materials

Friction ring

PU 93 Shore A - Blue
PU 96 Shore A - Blue
High temp. PU 96 Shore A - Beige
TPC-E (Hytrel)

O'Ring

NBR 70 Shore A

Dimensions
Installation dimensions
Materials
Technical data

Dimensions

520.008, 520.010, 520.012, 520.014, 520.015, 520.016, 520.018, 520.020, 520.021, 520.022, 520.024, 524.025, 520.025, 520.028, 520.030, 524.032, 520.032, 520.035, 520.036, 520.038, 520.040, 522.040, 520.042, 520.045, 520.048, 524.050, 520.050, 520.052, 520.053, 520.055, 520.057, 520.058, 520.060, 520.062, 524.063, 520.063, 520.065, 520.068, 520.070, 520.072, 520.075, 520.080, 522.080, 520.082, 520.085, 520.087, 520.090, 520.092, 520.095, 520.100, 522.100, 520.105, 520.108, 520.110, 520.115, 520.120, 524.125, 520.125, 520.127, 520.130, 520.132, 520.135, 520.140, 520.145, 520.150, 520.155, 520.160, 522.160, 520.165, 520.170, 520.175, 520.180, 520.185, 520.190, 520.195, 520.200, 522.200, 520.205, 520.210, 520.215, 520.220, 520.230, 520.240, 524.250, 520.250, 520.260, 520.270, 520.280, 520.290, 520.300, 520.310, 524.320, 520.320, 520.330, 520.340, 520.350, 520.360, 520.370, 520.380, 520.390, 520.400, 520.410, 520.420, 520.430, 520.440, 520.450, 520.460, 520.470, 520.480, 520.490, 520.500, 520.550, 520.600, 520.650, 520.700, 520.750, 520.800, 520.850, 520.900, 520.950
Installation drawingLogement Gorge Joint de piston - Housing Groove Gland Piston seal BECA 520 - 522 - 524

Installation dimensions

Housing Groove Gland Piston seal - BECA 520 - 522 - 524

Installation dimensions

Bore diameter
ØD1 H9		 Groove diameter Groove width Radial section O'Ring
cross-section
BECA 520
Standard
series		 BECA 522
Light
series		 BECA 524
Heavy-duty
series		 Ød1 h9 L1 0/+0.20 S Ød2
8.0 - 14.9 15.0 - 39.9 --- D1 - 4.90 2.20 2.45 1.78
15.0 - 39.9 40.0 - 79.9 --- D1 - 7.50 3.20 3.75 2.62
40.0 - 79.9 80.0 - 132.9 15.0 - 39.9 D1 - 11.00 4.20 5.50 3.53
80.0 - 132.9 133.0 - 329.9 40.0 - 79.9 D1 - 15.50 6.30 7.75 5.33
133.0 - 329.9 330.0 - 669.9 80.0 - 132.9 D1 - 21.00 8.10 10.50 6.99
330.0 - 669.9 670.0 - 999.9 133.0 - 329.9 D1 - 24.50 8.10 12.25 6.99
670.0 - 999.9 1000.0 - ** 330.0 - 669.9 D1 - 28.00 9.50 14.00 8.40
1000.0 - ** --- 1000.0 - ** D1 - 38.00 13.80 19.00 12.00

Materials

Friction ring O'Ring Contact surface area
Standard code ISO code Material Colour Characteristics Code Type of material Service temperature
HG HG PE-UHMW White or off-white Excellent wear resistance on contact with water and air K6 NBR 70 Shore A -30°C/+80°C Steel
Stainless steel
Chrome steel
Aluminium
Bronze
Cast iron
Treated surface
PU U Polyurethane Blue Large mechanical resistance
Good abrasion and wear resistance
High elastic modulus
Good flexibility
Very good ozone and oxidation resistance		 K6 NBR 70 Shore A -30°C/+90°C
PUHT U High-temperature polyurethane White or off-white K6 NBR 70 Shore A -30°C/+100°C

Other grades of materials are available depending on your specificities.

Technical data

Housing Groove Gland Piston seal - BECA 520 - 522 - 524

Extrusion gaps

Radial section
S		 Radial extrusion gap
F/2
2.45 0.20
3.75 0.25
5.50 0.25
7.75 0.30
10.50 0.30
12.25 0.35
14.00 0.35
19.00 0.40

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
2.45 0.30 0.40 3.00
3.75 0.30 0.60 3.00
5.50 0.30 1.00 3.00
7.75 0.30 1.30 5.00
10.50 0.30 1.80 6.00
12.25 0.30 1.80 8.00
14.00 0.30 2.50 10.00
19.00 0.30 3.00 12.00
120 dimensions found
520.400
Standard request
 400,00 375,50 8,10
520.410
Standard request
 410,00 385,50 8,10
520.420
Standard request
 420,00 395,50 8,10
520.430
Standard request
 430,00 405,50 8,10
520.440
Standard request
 440,00 415,50 8,10
520.450
Standard request
 450,00 425,50 8,10
520.460
Standard request
 460,00 435,50 8,10
520.470
Standard request
 470,00 445,50 8,10
520.480
Standard request
 480,00 455,50 8,10
520.490
Standard request
 490,00 465,50 8,10
520.500
Standard request
 500,00 475,50 8,10
520.550
Standard request
 550,00 525,50 8,10
520.600
Standard request
 600,00 575,50 8,10
520.650
Standard request
 650,00 625,50 8,10
520.700
Standard request
 700,00 672,00 9,50
520.750
Standard request
 750,00 722,00 9,50
520.800
Standard request
 800,00 772,00 9,50
520.850
Standard request
 850,00 822,00 9,50
520.900
Standard request
 900,00 872,00 9,50
520.950
Standard request
 950,00 922,00 9,50
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