BECA 156M

BECA 156M
BECA 156M
beca_156M_3d_v1
beca_156M_3d_v2

Description

The BECA 156M profile is a single acting composite rod seal composed of a filled PTFE friction ring and a pre-tightened rubber O'Ring. It meets the standards MIL-G-5514F and AS4716.

Advantages

Low friction coefficient
Suitable for a reduced size
Wide temperature range and excellent chemical resistance, depending on the materials selected
Housing in line with MIL-G-5514F and AS4716

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 156M

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

Other grades of materials are available depending on your specificities.

Technical data

Housing Groove Aerospace Rod Seal - BECA 156M

Groove widths and extrusion gaps

Series Groove width Extrusion
gaps
F
O'Ring
Ød2
L1 min - max L2 min - max L3 min - max
110 - 125 3.58 - 3.83 4.65 - 4.90 6.22 - 6.47 0.13 2.62
126 - 131 0.15
132 - 149 0.18
210 - 222 4.78 - 5.03 5.97 - 6.22 7.72 - 7.97 0.13 3.53
223 - 225 0.15
226 - 245 0.18
246 - 247 0.20
325 - 327 7.14 - 7.39 8.48 - 8.73 10.77 - 11.02 0.15 5.33
328 - 349 0.18
425 - 449 9.53 - 9.78 12.07 - 12.32 14.71 - 14.96 0.23 6.99
450 - 460 0.25

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

Chamfers and radius

Series Radius Chamfer
R1 min - max R2 min - max C
110 - 149 0.13 - 0.26 0.13 - 0.38 2.50
210 - 222 0.13 - 0.26 0.13 - 0.38 3.00
223 - 247 0.13 - 0.26 0.25 - 0.64 3.50
325 - 349 0.13 - 0.26 0.51 - 0.89 4.00
425 - 460 0.13 - 0.26 0.51 - 0.89 4.50
139 dimensions found
156.110
Standard request
110 9,47 13,87 14,00 3,58 4,65 6,22 013
156.111
Standard request
111 11,05 15,47 15,57 3,58 4,65 6,22 014
156.112
Standard request
112 12,65 17,07 17,17 3,58 4,65 6,22 015
156.113
Standard request
113 14,22 18,64 18,75 3,58 4,65 6,22 016
156.114
Standard request
114 15,82 20,24 20,35 3,58 4,65 6,22 017
156.115
Standard request
115 17,40 21,82 21,92 3,58 4,65 6,22 018
156.116
Standard request
116 19,00 23,44 23,52 3,58 4,65 6,22 019
156.117
Standard request
117 20,57 25,02 25,10 3,58 4,65 6,22 020
156.118
Standard request
118 22,17 26,62 26,70 3,58 4,65 6,22 021
156.119
Standard request
119 23,75 28,19 28,27 3,58 4,65 6,22 022
156.120
Standard request
120 25,35 29,79 29,87 3,58 4,65 6,22 023
156.121
Standard request
121 26,92 31,37 31,45 3,58 4,65 6,22 024
156.122
Standard request
122 28,52 32,97 33,05 3,58 4,65 6,22 025
156.123
Standard request
123 30,10 34,54 34,62 3,58 4,65 6,22 026
156.124
Standard request
124 31,70 36,14 36,22 3,58 4,65 6,22 027
156.125
Standard request
125 33,27 37,72 37,80 3,58 4,65 6,22 028
156.126
Standard request
126 34,87 39,32 39,40 3,58 4,65 6,22 028
156.127
Standard request
127 36,45 40,89 40,97 3,58 4,65 6,22 029
156.128
Standard request
128 38,05 42,49 42,57 3,58 4,65 6,22 029
156.129
Standard request
129 39,62 44,07 44,15 3,58 4,65 6,22
156.130
Standard request
130 41,22 45,67 45,75 3,58 4,65 6,22 030
156.131
Standard request
131 42,80 47,24 47,32 3,58 4,65 6,22 031
156.132
Standard request
132 44,40 48,84 48,92 3,58 4,65 6,22 031
156.133
Standard request
133 45,97 50,39 50,50 3,58 4,65 6,22 032
156.134
Standard request
134 47,57 51,99 52,10 3,58 4,65 6,22 032
156.135
Standard request
135 49,17 53,59 53,70 3,58 4,65 6,22 033
156.136
Standard request
136 50,75 55,17 55,27 3,58 4,65 6,22 033
156.137
Standard request
137 52,35 56,77 56,87 3,58 4,65 6,22 034
156.138
Standard request
138 53,92 58,34 58,45 3,58 4,65 6,22 034
156.139
Standard request
139 55,52 59,94 60,05 3,58 4,65 6,22 035
156.140
Standard request
140 57,10 61,52 61,62 3,58 4,65 6,22 035
156.141
Standard request
141 58,70 63,12 63,22 3,58 4,65 6,22 036
156.142
Standard request
142 60,27 64,69 64,80 3,58 4,65 6,22 036
156.143
Standard request
143 61,87 66,29 66,40 3,58 4,65 6,22 037
156.144
Standard request
144 63,45 67,87 67,97 3,58 4,65 6,22 037
156.145
Standard request
145 65,05 69,47 69,57 3,58 4,65 6,22 038
156.146
Standard request
146 66,62 71,04 71,15 3,58 4,65 6,22 038
156.147
Standard request
147 68,22 72,64 72,75 3,58 4,65 6,22 039
156.148
Standard request
148 69,80 74,22 74,32 3,58 4,65 6,22 039
156.149
Standard request
149 71,40 75,82 75,92 3,58 4,65 6,22 040
156.210
Standard request
210 19,00 25,12 25,17 4,78 5,97 7,72 117
156.211
Standard request
211 20,57 26,7 26,75 4,78 5,97 7,72 118
156.212
Standard request
212 22,17 28,32 28,35 4,78 5,97 7,72 119
156.213
Standard request
213 23,75 29,9 29,92 4,78 5,97 7,72 120
156.214
Standard request
214 25,35 31,5 31,52 4,78 5,97 7,72 121
156.215
Standard request
215 26,92 33,07 33,10 4,78 5,97 7,72 122
156.216
Standard request
216 28,52 34,67 34,70 4,78 5,97 7,72 123
156.217
Standard request
217 30,10 36,25 36,27 4,78 5,97 7,72 124
156.218
Standard request
218 31,70 37,85 37,87 4,78 5,97 7,72 125
156.219
Standard request
219 33,27 39,42 39,45 4,78 5,97 7,72 126
156.220
Standard request
220 34,87 41,02 41,05 4,78 5,97 7,72 127
156.221
Standard request
221 36,45 42,6 42,62 4,78 5,97 7,72 128
156.222
Standard request
222 38,05 44,2 44,22 4,78 5,97 7,72 129
156.223
Standard request
223 41,22 47,37 47,40 4,78 5,97 7,72 131
156.224
Standard request
224 44,40 50,55 50,57 4,78 5,97 7,72 133
156.225
Standard request
225 47,57 53,72 53,75 4,78 5,97 7,72 135
156.226
Standard request
226 50,75 56,9 56,92 4,78 5,97 7,72 137
156.227
Standard request
227 53,92 60,07 60,10 4,78 5,97 7,72 139
156.228
Standard request
228 57,10 63,25 63,27 4,78 5,97 7,72 141
156.229
Standard request
229 60,27 66,42 66,45 4,78 5,97 7,72 143
156.230
Standard request
230 63,45 69,6 69,62 4,78 5,97 7,72 145
156.231
Standard request
231 66,62 72,77 72,80 4,78 5,97 7,72 147
156.232
Standard request
232 69,80 75,95 75,97 4,78 5,97 7,72 149
156.233
Standard request
233 72,97 79,12 79,15 4,78 5,97 7,72 150
156.234
Standard request
234 76,12 82,27 82,30 4,78 5,97 7,72 151
156.235
Standard request
235 79,30 85,45 85,47 4,78 5,97 7,72 151
156.236
Standard request
236 82,47 88,62 88,65 4,78 5,97 7,72 152
156.237
Standard request
237 85,65 91,8 91,82 4,78 5,97 7,72 152
156.238
Standard request
238 88,82 94,97 95,00 4,78 5,97 7,72 153
156.239
Standard request
239 92,00 98,15 98,17 4,78 5,97 7,72 153
156.240
Standard request
240 95,17 101,32 101,35 4,78 5,97 7,72 154
156.241
Standard request
241 98,35 104,5 104,52 4,78 5,97 7,72 154
156.242
Standard request
242 101,52 107,67 107,70 4,78 5,97 7,72 155
156.243
Standard request
243 104,70 110,85 110,87 4,78 5,97 7,72 155
156.244
Standard request
244 107,87 114,02 114,05 4,78 5,97 7,72 156
156.245
Standard request
245 111,05 117,2 117,22 4,78 5,97 7,72 156
156.246
Standard request
246 114,22 120,37 120,40 4,78 5,97 7,72 157
156.247
Standard request
247 117,40 123,55 123,57 4,78 5,97 7,72 157
156.325
Standard request
325 38,05 47,5 47,50 7,14 8,48 10,77 223
156.326
Standard request
326 41,22 50,67 50,67 7,14 8,48 10,77 224
156.327
Standard request
327 44,40 53,85 53,85 7,14 8,48 10,77 225
156.328
Standard request
328 47,57 57,02 57,02 7,14 8,48 10,77 226
156.329
Standard request
329 50,75 60,2 60,20 7,14 8,48 10,77 227
156.330
Standard request
330 53,92 63,37 63,37 7,14 8,48 10,77 228
156.331
Standard request
331 57,10 66,55 66,55 7,14 8,48 10,77 229
156.332
Standard request
332 60,27 69,72 69,72 7,14 8,48 10,77 230
156.333
Standard request
333 63,45 72,9 72,90 7,14 8,48 10,77 231
156.334
Standard request
334 66,62 76,07 76,07 7,14 8,48 10,77 232
156.335
Standard request
335 69,80 79,25 79,25 7,14 8,48 10,77 233
156.336
Standard request
336 72,97 82,42 82,42 7,14 8,48 10,77 234
156.337
Standard request
337 76,12 85,57 85,57 7,14 8,48 10,77 235
156.338
Standard request
338 79,30 88,75 88,75 7,14 8,48 10,77 236
156.339
Standard request
339 82,47 91,92 91,92 7,14 8,48 10,77 237
156.340
Standard request
340 85,65 95,1 95,10 7,14 8,48 10,77 238
156.341
Standard request
341 88,82 98,27 98,27 7,14 8,48 10,77 239
156.342
Standard request
342 92,00 101,45 101,45 7,14 8,48 10,77 240
156.343
Standard request
343 95,17 104,62 104,62 7,14 8,48 10,77 241
156.344
Standard request
344 98,35 107,8 107,80 7,14 8,48 10,77 242
156.345
Standard request
345 101,52 110,97 110,97 7,14 8,48 10,77 243
156.346
Standard request
346 104,70 114,15 114,15 7,14 8,48 10,77 244
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