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BECA 151

BECA 151 - 153 - 155
beca_151_153_155_3d_v1
beca_151_153_155_3d_v2

Description

The BECA 151 profile is a double acting composite rod seal composed of a filled PTFE friction ring and a pre-tightened rubber O'Ring. It follows the rod diameters, in line with the standards MIL-G-5514F and AS4716.

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

-40°C/+200°C

Pressure

35 MPa

Speed

5 m/s

Medias

Hydraulic fluids with a mineral oil base
Fire retardant hydraulic fluids
Bio oils
Phosphate esters
Water

Applications

Actuators
Brakes systems
Flight controls
Engine systems
Landing gear

Materials

Friction ring

Bronze-filled PTFE
Carbon-filled PTFE
GL Blue PTFE

O'Ring

NBR 70 Shore A
FKM 70 Shore A

Dimensions
Materials
Technical data

Dimensions

151.A010, 151.A011, 151.A012, 151.A013, 151.A014, 151.A015, 151.A016, 151.A017, 151.A018, 151.A019, 151.A020, 151.A021, 151.A022, 151.A023, 151.A024, 151.A025, 151.A026, 151.A027, 151.A028, 151.A110, 151.A111, 151.A112, 151.A113, 151.A114, 151.A115, 151.A116, 151.A117, 151.A118, 151.A119, 151.A120, 151.A121, 151.A122, 151.A123, 151.A124, 151.A125, 151.A126, 151.A127, 151.A128, 151.A129, 151.A130, 151.A131, 151.A132, 151.A133, 151.A134, 151.A135, 151.A136, 151.A137, 151.A138, 151.A139, 151.A140, 151.A141, 151.A142, 151.A143, 151.A144, 151.A145, 151.A146, 151.A147, 151.A148, 151.A149, 151.A210, 151.A211, 151.A212, 151.A213, 151.A214, 151.A215, 151.A216, 151.A217, 151.A218, 151.A219, 151.A220, 151.A221, 151.A222, 151.A223, 151.A224, 151.A225, 151.A226, 151.A227, 151.A228, 151.A229, 151.A230, 151.A231, 151.A232, 151.A233, 151.A234, 151.A235, 151.A236, 151.A237, 151.A238, 151.A239, 151.A240, 151.A241, 151.A242, 151.A243, 151.A244, 151.A245, 151.A246, 151.A247, 151.A325, 151.A326, 151.A327, 151.A328, 151.A329, 151.A330, 151.A331, 151.A332, 151.A333, 151.A334, 151.A335, 151.A336, 151.A337, 151.A338, 151.A339, 151.A340, 151.A341, 151.A342, 151.A343, 151.A344, 151.A345, 151.A346, 151.A347, 151.A348, 151.A349, 151.A425, 151.A426, 151.A427, 151.A428, 151.A429, 151.A430, 151.A431, 151.A432, 151.A433, 151.A434, 151.A435, 151.A436, 151.A437, 151.A438, 151.A439, 151.A440, 151.A441, 151.A442, 151.A443, 151.A444, 151.A445, 151.A446, 151.A447, 151.A448, 151.A449, 151.A450, 151.A451, 151.A452, 151.A453, 151.A454, 151.A455, 151.A456, 151.A457, 151.A458, 151.A459, 151.A460
Installation drawingLogement Gorge Joint de tige aéronautique - Housing Groove Gland aerospace rod seal BECA 151

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 -40°C/+145°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 -40°C/+145°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 -40°C/+145°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 -40°C/+145°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 -40°C/+145°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 -40°C/+145°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 UHMW-PE 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 Aerospace Rod Seal - BECA 151

Groove widths and extrusion gaps

Series Groove width
L1 min - max		 Extrusion gaps
F		 O'Ring
Ød2
010 - 012 2.06 - 2.19 0.10 1.78
013 - 028 0.13
110 - 149 3.20 - 3.33 0.13 2.62
210 - 247 4.22 - 4.35 0.15 3.53
325 - 349 6.27 - 6.40 0.18 5.33
425 - 460 8.13 - 8.26 0.25 6.99

Tolerances on the rod diameters and groove diameters

Series Tolerance on
rod diameter
Ød1		 Tolerance on
groove diameter
ØD1
010 - 012 -0.025/0 0/+0.025
013 - 349 -0.050/0 0/+0.050
425 - 446 -0.076/0 0/+0.076
447 - 460 -0.076/0 0/+0.100

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

Radius and chamfers

Series Radius
R1 min - max		 Radius
R2 min - max		 Chamfer
C
010 - 149 0.13 - 0.26 0.13 - 0.38 3.00
210 - 247 0.13 - 0.26 0.25 - 0.64 4.00
325 - 460 0.13 - 0.26 0.50 - 0.73 5.00
158 dimensions found
151.A010
Standard request
 010 6,30 10,72 2,06 011
151.A011
Standard request
 011 7,87 12,29 2,06 012
151.A012
Standard request
 012 9,47 13,89 2,06 013
151.A013
Standard request
 013 11,05 15,47 2,06 014
151.A014
Standard request
 014 12,65 17,07 2,06 015
151.A015
Standard request
 015 14,22 18,64 2,06 016
151.A016
Standard request
 016 15,82 20,24 2,06 017
151.A017
Standard request
 017 17,40 21,82 2,06 018
151.A018
Standard request
 018 19,00 23,42 2,06 019
151.A019
Standard request
 019 20,57 24,99 2,06 020
151.A020
Standard request
 020 22,17 26,59 2,06 021
151.A021
Standard request
 021 23,75 28,17 2,06 022
151.A022
Standard request
 022 25,35 29,77 2,06 023
151.A023
Standard request
 023 26,92 31,34 2,06 024
151.A024
Standard request
 024 28,52 32,94 2,06 025
151.A025
Standard request
 025 30,10 34,52 2,06 026
151.A026
Standard request
 026 31,70 36,12 2,06 027
151.A027
Standard request
 027 33,27 37,69 2,06 028
151.A028
Standard request
 028 34,87 39,29 2,06 110
151.A110
Standard request
 110 9,47 15,82 2,06 111
151.A111
Standard request
 111 11,05 17,40 2,06 112
151.A112
Standard request
 112 12,65 19,00 2,06 113
151.A113
Standard request
 113 14,22 20,57 2,06 114
151.A114
Standard request
 114 15,82 22,17 2,06 115
151.A115
Standard request
 115 17,40 23,75 2,06 116
151.A116
Standard request
 116 19,00 25,35 2,06 117
151.A117
Standard request
 117 20,57 26,92 2,06 118
151.A118
Standard request
 118 22,17 28,52 2,06 119
151.A119
Standard request
 119 23,75 30,10 2,06 120
151.A120
Standard request
 120 25,35 31,70 2,06 121
151.A121
Standard request
 121 26,92 33,27 2,06 122
151.A122
Standard request
 122 28,52 34,87 2,06 123
151.A123
Standard request
 123 30,10 36,45 2,06 124
151.A124
Standard request
 124 31,70 38,05 2,06 125
151.A125
Standard request
 125 33,27 39,62 2,06 126
151.A126
Standard request
 126 34,87 41,22 3,20 127
151.A127
Standard request
 127 36,45 42,80 3,20 128
151.A128
Standard request
 128 38,05 44,40 3,20 129
151.A129
Standard request
 129 39,62 45,97 3,20 130
151.A130
Standard request
 130 41,22 47,57 3,20 131
151.A131
Standard request
 131 42,80 49,15 3,20 132
151.A132
Standard request
 132 44,40 50,75 3,20 133
151.A133
Standard request
 133 45,97 52,32 3,20 134
151.A134
Standard request
 134 47,57 53,92 3,20 135
151.A135
Standard request
 135 49,17 55,52 3,20 136
151.A136
Standard request
 136 50,75 57,10 3,20 137
151.A137
Standard request
 137 52,35 58,70 3,20 138
151.A138
Standard request
 138 53,92 60,27 3,20 139
151.A139
Standard request
 139 55,52 61,87 3,20 140
151.A140
Standard request
 140 57,10 63,45 3,20 141
151.A141
Standard request
 141 58,70 65,05 3,20 142
151.A142
Standard request
 142 60,27 66,62 3,20 143
151.A143
Standard request
 143 61,87 68,22 3,20 144
151.A144
Standard request
 144 63,45 69,80 3,20 145
151.A145
Standard request
 145 65,05 71,40 3,20 146
151.A146
Standard request
 146 66,62 72,97 3,20 147
151.A147
Standard request
 147 68,22 74,57 3,20 148
151.A148
Standard request
 148 69,80 76,15 3,20 149
151.A149
Standard request
 149 71,40 77,75 3,20 210
151.A210
Standard request
 210 19,00 28,50 4,22 211
151.A211
Standard request
 211 20,57 30,07 4,22 212
151.A212
Standard request
 212 22,17 31,67 4,22 213
151.A213
Standard request
 213 23,75 33,25 4,22 214
151.A214
Standard request
 214 25,35 34,85 4,22 215
151.A215
Standard request
 215 26,92 36,42 4,22 216
151.A216
Standard request
 216 28,52 38,02 4,22 217
151.A217
Standard request
 217 30,10 39,60 4,22 218
151.A218
Standard request
 218 31,70 41,20 4,22 219
151.A219
Standard request
 219 33,27 42,77 4,22 220
151.A220
Standard request
 220 34,87 44,37 4,22 221
151.A221
Standard request
 221 36,45 45,95 4,22 222
151.A222
Standard request
 222 38,05 47,55 4,22 223
151.A223
Standard request
 223 41,22 50,72 4,22 224
151.A224
Standard request
 224 44,40 53,90 4,22 225
151.A225
Standard request
 225 47,57 57,07 4,22 226
151.A226
Standard request
 226 50,75 60,25 4,22 227
151.A227
Standard request
 227 53,92 63,42 4,22 228
151.A228
Standard request
 228 57,10 66,60 4,22 229
151.A229
Standard request
 229 60,27 69,77 4,22 230
151.A230
Standard request
 230 63,45 72,95 4,22 231
151.A231
Standard request
 231 66,62 76,12 4,22 232
151.A232
Standard request
 232 69,80 79,30 4,22 233
151.A233
Standard request
 233 72,97 82,47 4,22 234
151.A234
Standard request
 234 76,12 85,62 4,22 235
151.A235
Standard request
 235 79,30 88,80 4,22 236
151.A236
Standard request
 236 82,47 91,97 4,22 237
151.A237
Standard request
 237 85,65 95,15 4,22 238
151.A238
Standard request
 238 88,82 98,32 4,22 239
151.A239
Standard request
 239 92,00 101,50 4,22 240
151.A240
Standard request
 240 95,17 104,67 4,22 241
151.A241
Standard request
 241 98,35 107,85 4,22 242
151.A242
Standard request
 242 101,52 111,02 4,22 243
151.A243
Standard request
 243 104,70 114,20 4,22 244
151.A244
Standard request
 244 107,87 117,37 4,22 245
151.A245
Standard request
 245 111,05 120,55 4,22 246
151.A246
Standard request
 246 114,22 123,72 4,22 247
151.A247
Standard request
 247 117,40 126,90 4,22 325
151.A325
Standard request
 325 38,05 51,12 6,27 326
151.A326
Standard request
 326 41,22 55,30 6,27 327
151.A327
Standard request
 327 44,40 58,47 6,27 328
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