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BECA 501 - 503 - 505

BECA 501 - 503 - 505
BECA 501 - 503 - 505
beca_501_503_505_3d_v1
beca_501_503_505_3d_v2

Description

The BECA 501 - 503 - 505 profiles are single acting composite piston seals composed of a filled PTFE friction ring and pre-tightened rubber O'Ring.

Advantages

Optimal sealing in static and dynamic applications
Low friction coefficient; no stick-slip effect
Excellent abrasion resistance
Wide temperature range and excellent chemical resistance, depending on the material selected for the O'Ring

Technical data

Temperature

-30°C/+200°C

Pressure

1.6 MPa (5.0 MPa max)

Speed

5 m/s

Medias

Lubricated air
Oil-free air
Non-aggressive gases

Applications

Shock absorbers
Distributor
Standard cylinders

Materials

Friction ring

Bronze-filled PTFE
Carbon-filled PTFE
PE-UHMW

O'Ring

NBR 70 Shore A
HNBR 70 Shore A
FKM 70 Shore A

Dimensions
Installation dimensions
Materials
Technical data

Dimensions

501.008, 501.009, 501.010, 501.012, 501.014, 503.015, 503.016, 505.018, 501.018, 503.018, 505.020, 501.020, 503.020, 505.022, 501.022, 503.022, 505.025, 501.025, 503.025, 505.028, 501.028, 505.030, 501.030, 505.032, 501.032, 505.035, 501.035, 505.038, 501.038, 505.040, 501.040, 503.040, 505.042, 501.042, 503.042, 505.045, 501.045, 503.045, 505.048, 501.048, 503.048, 505.050, 501.050, 503.050, 505.052, 501.052, 503.052, 505.055, 501.055, 503.055, 505.058, 501.058, 503.058, 505.060, 503.060, 505.062, 503.062, 505.063, 503.063, 505.065, 503.065, 505.070, 503.070, 505.072, 503.072, 505.075, 503.075, 505.078, 503.078, 505.080, 501.080, 503.080, 505.082, 501.082, 503.082, 505.085, 501.085, 503.085, 505.090, 501.090, 503.090, 505.095, 501.095, 503.095, 505.100, 501.100, 503.100, 505.105, 501.105, 503.105, 505.110, 501.110, 503.110, 505.115, 501.115, 503.115, 505.120, 501.120, 503.120, 505.125, 501.125, 503.125, 505.130, 501.130, 503.130, 501.135, 503.135, 501.140, 503.140, 501.145, 503.145, 501.150, 503.150, 501.155, 503.155, 501.160, 503.160, 501.165, 503.165, 501.170, 503.170, 501.175, 503.175, 501.180, 503.180, 501.190, 503.190, 505.200, 501.200, 503.200, 505.210, 501.210, 503.210, 505.220, 501.220, 503.220, 505.230, 501.230, 503.230, 505.240, 501.240, 503.240, 505.250, 501.250, 503.250, 505.260, 501.260, 505.270, 501.270, 505.280, 501.280, 505.290, 501.290, 505.300, 501.300, 505.310, 501.310, 505.320, 501.320, 505.330, 501.330, 503.330, 505.340, 501.340, 503.340, 505.350, 501.350, 503.350, 505.360, 501.360, 503.360, 505.370, 501.370, 503.370, 505.380, 501.380, 503.380, 505.390, 501.390, 503.390, 505.400, 501.400, 503.400, 505.410, 501.410, 503.410, 505.420, 501.420, 503.420, 505.430, 501.430, 503.430, 505.440, 501.440, 503.440, 505.450, 501.450, 503.450, 505.460, 501.460, 503.460, 505.470, 501.470, 503.470, 505.480, 501.480, 503.480, 505.490, 501.490, 503.490, 505.500, 501.500, 503.500, 505.550, 501.550, 503.550, 505.600, 501.600, 503.600, 505.650, 501.650, 503.650, 505.700, 501.700, 503.700, 505.750, 501.750, 503.750, 505.800, 501.800, 503.800, 505.850, 501.850, 503.850, 505.900, 501.900, 503.900, 505.950, 501.950, 503.950
Installation drawingLogement Gorge Joint de piston - Housing Groove Gland Piston seal BECA 501 - 503 - 505

Installation dimensions

Housing Groove Gland Piston seal - BECA 501 - 503 - 505

Installation dimensions

Bore diameter
ØD1 H9
Groove diameter Groove width Radial section O'Ring
cross-section
BECA 501
Standard
series
BECA 503
Light
series
BECA 505
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 - 7.30 3.20 3.65 2.62
40.0 - 79.9 80.0 - 132.9 15.0 - 39.9 D1 - 10.70 4.20 5.35 3.53
80.0 - 132.9 133.0 - 329.9 40.0 - 79.9 D1 - 15.10 6.30 7.55 5.33
133.0 - 329.9 330.0 - 669.9 80.0 - 132.9 D1 - 20.50 8.10 10.25 6.99
330.0 - 669.9 670.0 - 999.9 133.0 - 329.9 D1 - 24.00 8.10 12.00 6.99
670.0 - 999.9 1000.0 - ** 330.0 - 669.9 D1 - 27.30 9.50 13.65 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
DP P Virgin PTFE White Resistance to chemical products
Sealing water
Dielectric
Non-stick
Low friction coefficient
Food & Beverage
K6 NBR 70 Shore A -30°C/+100°C Steel
Stainless steel
Chrome steel
Aluminium
Bronze
Cast iron
Treated surface
G6 FKM 70 Shore A -20°C/+200°C
C6 EPDM 70 Shore A -45°C/+150°C
F6 VMQ 70
Shore A
-60°C/+200°C
DC C PTFE
+25% Carbon
Grey

Improvement

  • Wear properties
  • Compression set

Good resistance to chemical products
Thermal and electrical conductivity
Anti-static

Efficient as part of dynamic
applications with compression

K6 NBR 70 Shore A -30°C/+100°C
G6 FKM 70 Shore A -20°C/+200°C
C6 EPDM 70 Shore A -45°C/+150°C
CG C PTFE
+ 23% Carbon
+ 2% Graphite
Black K6 NBR 70 Shore A -30°C/+100°C
G6 FKM 70 Shore A -20°C/+200°C
C6 EPDM 70 Shore A -45°C/+150°C
DV V PTFE
+ 25 % Glass
Blue Improvement
  • Wear properties
  • Mechanical strength
Slightly more abrasive but can be
corrected with the addition of MOS2
Chemical and dielectric properties preserved

Well suited to applications with
rotating and simultaneous alternating movements
K6 NBR 70 Shore A -30°C/+100°C Steel
Chrome steel
Cast iron
G6 FKM 70 Shore A -20°C/+200°C
VM M PTFE
+ 15 % Glass
+ 5% MoS2
Grey K6 NBR 70 Shore A -30°C/+100°C
G6 FKM 70 Shore A -20°C/+200°C
DX X GL Blue PTFE
+ Glass
+ Metal oxides
Turquoise blue Compression resistant
Wear resistant
Excellent chemical stability
Good thermal conductivity
K6 NBR 70 Shore A -30°C/+100°C
G6 FKM 70 Shore A -20°C/+200°C
DG G PTFE
+ 15% Graphite
Black Improvement
  • Wear properties
Reduced wear on metal parts
Self-lubricating
Thermal and electrical conductivity
Low permeability
Good friction coefficient
Anti-static

Efficient as part of dynamic
dynamic applications with self-lubrication
K6 NBR 70 Shore A -30°C/+100°C Steel
Stainless steel
Chrome steel
Aluminium
Bronze
Cast iron
Treated surface
G6 FKM 70 Shore A -20°C/+200°C
C6 EPDM 70 Shore A -45°C/+150°C
K1 K PTFE
+ 10% Ekonol
Light brown Improvement
  • Better abrasion resistance
  • Better dimensional stability at high temperatures
Use up to +300°C
Good friction coefficient and low permeability
K6 NBR 70 Shore A -30°C/+100°C
G6 FKM 70 Shore A -20°C/+200°C
C6 EPDM 70 Shore A -45°C/+150°C
K2 K PTFE
+ 20% Ekonol
Light brown K6 NBR 70 Shore A -30°C/+100°C
G6 FKM 70 Shore A -20°C/+200°C
C6 EPDM 70 Shore A -45°C/+150°C
DB B PTFE
+ 60% Bronze
Dark brown Improvement
  • Wear properties
  • Deformation and creep resistance
  • Compression resistant
Self-lubricating
Electrical and thermal conductivity
Does not alter metal parts
Reduced resistance to certain chemical products

Used for dynamic seals with a strong compression and low level of wear
K6 NBR 70 Shore A -30°C/+100°C Steel
Chrome steel
Cast iron
G6 FKM 70 Shore A -20°C/+200°C
B4 B PTFE
+ 40% Bronze
Dark brown K6 NBR 70 Shore A -30°C/+100°C
G6 FKM 70 Shore A -20°C/+200°C
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/+110°C

Other grades of materials are available depending on your specificities.

Technical data

Housing Groove Gland Piston seal - BECA 501 - 503 - 505

Extrusion gaps

Radial section
S
Radial extrusion gap
F/2
0.0 to 5.0 MPa
2.45 0.20
3.65 0.25
5.35 0.40
7.55 0.50
10.25 0.70
12.00 0.90
13.65 0.90
19.00 1.00

Surface roughness

Roughness Dynamic surface area Static surface area Groove flanks
Ra 0.05 - 0.2 µm ≤ 1.6 µm ≤ 3.2 µm
Rz 0.4 - 1.6 µm ≤ 6.3 µm ≤ 10.0 µm
Rmax 0.63 - 2.5 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
3.65 0.30 0.60 3.00
5.35 0.30 1.00 3.00
7.55 0.30 1.30 5.00
10.25 0.30 1.80 6.00
12.00 0.30 1.80 8.00
13.65 0.30 2.50 10.00
19.00 0.30 3.00 12.00
240 dimensions found
503.460
Standard request
460,00 439,00 8,10
505.470
Standard request
470,00 442,00 9,50
501.470
Standard request
470,00 445,50 8,10
503.470
Standard request
470,00 449,00 8,10
505.480
Standard request
480,00 452,00 9,50
501.480
Standard request
480,00 455,50 8,10
503.480
Standard request
480,00 459,00 8,10
505.490
Standard request
490,00 462,00 9,50
501.490
Standard request
490,00 465,50 8,10
503.490
Standard request
490,00 469,00 8,10
505.500
Standard request
500,00 472,00 9,50
501.500
Standard request
500,00 475,50 8,10
503.500
Standard request
500,00 479,00 8,10
505.550
Standard request
550,00 522,00 9,50
501.550
Standard request
550,00 525,50 8,10
503.550
Standard request
550,00 529,00 8,10
505.600
Standard request
600,00 572,00 9,50
501.600
Standard request
600,00 575,50 8,10
503.600
Standard request
600,00 579,00 8,10
505.650
Standard request
650,00 622,00 9,50
501.650
Standard request
650,00 625,50 8,10
503.650
Standard request
650,00 629,00 8,10
505.700
Standard request
700,00 662,00 13,80
501.700
Standard request
700,00 672,00 9,50
503.700
Standard request
700,00 675,50 8,10
505.750
Standard request
750,00 712,00 13,80
501.750
Standard request
750,00 722,00 9,50
503.750
Standard request
750,00 725,50 8,10
505.800
Standard request
800,00 762,00 13,80
501.800
Standard request
800,00 772,00 9,50
503.800
Standard request
800,00 775,50 8,10
505.850
Standard request
850,00 812,00 13,80
501.850
Standard request
850,00 822,00 9,50
503.850
Standard request
850,00 825,50 8,10
505.900
Standard request
900,00 862,00 13,80
501.900
Standard request
900,00 872,00 9,50
503.900
Standard request
900,00 875,50 8,10
505.950
Standard request
950,00 912,00 13,80
501.950
Standard request
950,00 922,00 9,50
503.950
Standard request
950,00 925,50 8,10
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