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BECA 500 - 502 - 504

BECA 500 - 502 - 504
BECA 500 - 502 - 504
beca_500_502_504_3d_v1
beca_500_502_504_3d_v2

Description

The BECA 500 - 502 - 504 profiles are double acting composite piston seals composed of a filled PTFE friction ring and pre-tightened rubber O'Ring. They can be assembled in grooves according to standard ISO 7425/1. Option of connecting the seal to 1 or 2 back-up rings.

Advantages

Optimal sealing in static and dynamic applications
Low friction coefficient; no stick-slip effect
Excellent abrasion and extrusion 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

50 MPa

Speed

5 m/s

Medias

Mineral hydraulic oils
Fire-resistant liquids
Biocompatible fluids
Water
Others (contact our experts)

Applications

Mobile machinery
Injection presses
Machine tools
Presses
Standard cylinders

Materials

Friction ring

Bronze-filled PTFE
Carbon-filled PTFE
GL Blue PTFE

O'Ring

NBR 70 Shore A
FKM 70 Shore A

Dimensions
Installation dimensions
Materials
Technical data

Dimensions

500.008, 500.010, 500.012, 500.014, 504.015, 500.015, 502.015, 504.016, 500.016, 502.016, 504.018, 500.018, 502.018, 504.020, 500.020, 502.020, 504.021, 500.021, 502.021, 504.022, 500.022, 502.022, 504.024, 500.024, 502.024, 504.025, 500.025, 502.025, 504.028, 500.028, 502.028, 504.030, 500.030, 502.030, 504.032, 500.032, 502.032, 504.035, 500.035, 502.035, 504.036, 500.036, 502.036, 504.038, 500.038, 502.038, 504.040, 500.040, 502.040, 504.042, 500.042, 502.042, 504.045, 500.045, 502.045, 504.048, 500.048, 502.048, 504.050, 500.050, 502.050, 504.052, 500.052, 502.052, 504.053, 500.053, 502.053, 504.055, 500.055, 502.055, 504.057, 500.057, 502.057, 504.058, 500.058, 502.058, 504.060, 500.060, 502.060, 504.062, 500.062, 502.062, 504.063, 500.063, 502.063, 504.065, 500.065, 502.065, 504.068, 500.068, 502.068, 504.070, 500.070, 502.070, 504.072, 500.072, 502.072, 504.075, 500.075, 502.075, 504.080, 500.080, 502.080, 504.082, 500.082, 502.082, 504.085, 500.085, 502.085, 504.087, 500.087, 502.087, 504.090, 500.090, 502.090, 504.092, 500.092, 502.092, 504.095, 500.095, 502.095, 504.100, 500.100, 502.100, 504.105, 500.105, 502.105, 504.108, 500.108, 502.108, 504.110, 500.110, 502.110, 504.115, 500.115, 502.115, 504.120, 500.120, 502.120, 504.125, 500.125, 502.125, 504.127, 500.127, 502.127, 504.130, 500.130, 502.130, 504.132, 500.132, 502.132, 504.135, 500.135, 502.135, 504.140, 500.140, 502.140, 504.145, 500.145, 502.145, 504.150, 500.150, 502.150, 504.155, 500.155, 502.155, 504.160, 500.160, 502.160, 504.165, 500.165, 502.165, 504.170, 500.170, 502.170, 504.175, 500.175, 502.175, 504.180, 500.180, 502.180, 504.185, 500.185, 502.185, 504.190, 500.190, 502.190, 504.195, 500.195, 502.195, 504.200, 500.200, 502.200, 504.205, 500.205, 502.205, 504.210, 500.210, 502.210, 504.215, 500.215, 502.215, 504.220, 500.220, 502.220, 504.230, 500.230, 502.230, 504.240, 500.240, 502.240, 504.250, 500.250, 502.250, 504.260, 500.260, 502.260, 504.270, 500.270, 502.270, 504.280, 500.280, 502.280, 504.290, 500.290, 502.290, 504.300, 500.300, 502.300, 504.310, 500.310, 502.310, 504.320, 500.320, 502.320, 504.330, 500.330, 502.330, 504.340, 500.340, 502.340, 504.350, 500.350, 502.350, 504.360, 500.360, 502.360, 504.370, 500.370, 502.370, 504.380, 500.380, 502.380, 504.390, 500.390, 502.390, 504.400, 500.400, 502.400, 504.410, 500.410, 502.410, 504.420, 500.420, 502.420, 504.430, 500.430, 502.430, 504.440, 500.440, 502.440, 504.450, 500.450, 502.450, 504.460, 500.460, 502.460, 504.470, 500.470, 502.470, 504.480, 500.480, 502.480, 504.490, 500.490, 502.490, 504.500, 500.500, 502.500, 504.550, 500.550, 502.550, 504.600, 500.600, 502.600, 504.650, 500.650, 502.650, 504.700, 500.700, 502.700, 504.750, 500.750, 502.750, 504.800, 500.800, 502.800, 504.850, 500.850, 502.850, 504.900, 500.900, 502.900, 504.950, 500.950, 502.950
Installation drawingLogement Gorge Joint de piston - Housing Groove Gland Piston seal BECA 500 - 502 - 504

Installation dimensions

Housing Groove Gland Piston seal - BECA 500 - 502 - 504

Installation dimensions

Bore diameter
ØD1 H9		 Groove diameter Groove width Radial section O'Ring
cross-section
BECA 500
Standard
series		 BECA 502
Light
series		 BECA 504
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

For special applications > 40 MPa, we recommend using an H8/f8 tolerance (bore/piston) or selecting other more suitable materials. Please contact our experts.

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/+100°C

Other grades of materials are available depending on your specificities.

Technical data

Housing Groove Gland Piston seal - BECA 500 - 502 - 504

Extrusion gaps

Radial section
S		 Radial extrusion gap
F/2
10 MPa 20 MPa 40 MPa
2.45 0.30 0.20 0.15
3.75 0.40 0.25 0.15
5.50 0.40 0.25 0.20
7.75 0.50 0.30 0.20
10.50 0.60 0.35 0.25
12.25 0.60 0.35 0.25
14.00 0.70 0.50 0.30
19.00 1.00 0.70 0.60

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
3.75 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
316 dimensions found
500.008
Standard request
 8,00 3,10 2,20
500.010
Standard request
 10,00 5,10 2,20
500.012
Standard request
 12,00 7,10 2,20
500.014
Standard request
 14,00 9,10 2,20
504.015
Standard request
 15,00 4,00 4,20
500.015
Standard request
 15,00 7,50 3,20
502.015
Standard request
 15,00 10,10 2,20
504.016
Standard request
 16,00 5,00 4,20
500.016
Standard request
 16,00 8,50 3,20
502.016
Standard request
 16,00 11,10 2,20
504.018
Standard request
 18,00 7,00 4,20
500.018
Standard request
 18,00 10,50 3,20
502.018
Standard request
 18,00 13,10 2,20
504.020
Standard request
 20,00 9,00 4,20
500.020
Standard request
 20,00 12,50 3,20
502.020
Standard request
 20,00 15,10 2,20
504.021
Standard request
 21,00 10,00 4,20
500.021
Standard request
 21,00 13,50 3,20
502.021
Standard request
 21,00 16,10 2,20
504.022
Standard request
 22,00 11,00 4,20
500.022
Standard request
 22,00 14,50 3,20
502.022
Standard request
 22,00 17,10 2,20
504.024
Standard request
 24,00 13,00 4,20
500.024
Standard request
 24,00 16,50 3,20
502.024
Standard request
 24,00 19,10 2,20
504.025
Standard request
 25,00 14,00 4,20
500.025
Standard request
 25,00 17,50 3,20
502.025
Standard request
 25,00 20,10 2,20
504.028
Standard request
 28,00 17,00 4,20
500.028
Standard request
 28,00 20,50 3,20
502.028
Standard request
 28,00 23,10 2,20
504.030
Standard request
 30,00 19,00 4,20
500.030
Standard request
 30,00 22,50 3,20
502.030
Standard request
 30,00 25,10 2,20
504.032
Standard request
 32,00 21,00 4,20
500.032
Standard request
 32,00 24,50 3,20
502.032
Standard request
 32,00 27,10 2,20
504.035
Standard request
 35,00 24,00 4,20
500.035
Standard request
 35,00 27,50 3,20
502.035
Standard request
 35,00 30,10 2,20
504.036
Standard request
 36,00 25,00 4,20
500.036
Standard request
 36,00 28,50 3,20
502.036
Standard request
 36,00 31,10 2,20
504.038
Standard request
 38,00 27,00 4,20
500.038
Standard request
 38,00 30,50 3,20
502.038
Standard request
 38,00 33,10 2,20
504.040
Standard request
 40,00 24,50 6,30
500.040
Standard request
 40,00 29,00 4,20
502.040
Standard request
 40,00 32,50 3,20
504.042
Standard request
 42,00 26,50 6,30
500.042
Standard request
 42,00 31,00 4,20
502.042
Standard request
 42,00 34,50 3,20
504.045
Standard request
 45,00 29,50 6,30
500.045
Standard request
 45,00 34,00 4,20
502.045
Standard request
 45,00 37,50 3,20
504.048
Standard request
 48,00 32,50 6,30
500.048
Standard request
 48,00 37,00 4,20
502.048
Standard request
 48,00 40,50 3,20
504.050
Standard request
 50,00 34,50 6,30
500.050
Standard request
 50,00 39,00 4,20
502.050
Standard request
 50,00 42,50 3,20
504.052
Standard request
 52,00 36,50 6,30
500.052
Standard request
 52,00 41,00 4,20
502.052
Standard request
 52,00 44,50 3,20
504.053
Standard request
 53,00 37,50 6,30
500.053
Standard request
 53,00 42,00 4,20
502.053
Standard request
 53,00 45,50 3,20
504.055
Standard request
 55,00 39,50 6,30
500.055
Standard request
 55,00 44,00 4,20
502.055
Standard request
 55,00 47,50 3,20
504.057
Standard request
 57,00 41,50 6,30
500.057
Standard request
 57,00 46,00 4,20
502.057
Standard request
 57,00 49,50 3,20
504.058
Standard request
 58,00 42,50 6,30
500.058
Standard request
 58,00 47,00 4,20
502.058
Standard request
 58,00 50,50 3,20
504.060
Standard request
 60,00 44,50 6,30
500.060
Standard request
 60,00 49,00 4,20
502.060
Standard request
 60,00 52,50 3,20
504.062
Standard request
 62,00 46,50 6,30
500.062
Standard request
 62,00 51,00 4,20
502.062
Standard request
 62,00 54,50 3,20
504.063
Standard request
 63,00 47,50 6,30
500.063
Standard request
 63,00 52,00 4,20
502.063
Standard request
 63,00 55,50 3,20
504.065
Standard request
 65,00 49,50 6,30
500.065
Standard request
 65,00 54,00 4,20
502.065
Standard request
 65,00 57,50 3,20
504.068
Standard request
 68,00 52,50 6,30
500.068
Standard request
 68,00 57,00 4,20
502.068
Standard request
 68,00 60,50 3,20
504.070
Standard request
 70,00 54,50 6,30
500.070
Standard request
 70,00 59,00 4,20
502.070
Standard request
 70,00 62,50 3,20
504.072
Standard request
 72,00 56,50 6,30
500.072
Standard request
 72,00 61,00 4,20
502.072
Standard request
 72,00 64,50 3,20
504.075
Standard request
 75,00 59,50 6,30
500.075
Standard request
 75,00 64,00 4,20
502.075
Standard request
 75,00 67,50 3,20
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