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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

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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