EN
Telephone

+33 (0)2 51 42 13 76

Search
Quality & expertise
for your sealing needs

BECA 485

BECA 485
beca_485_3d_v1
beca_485_3d_v2

Description

The BECA 485 profile is a double acting composite wiper seal composed of a filled PTFE friction ring and a pre-tightened rubber O'Ring. It meets military standard MS33675.

Advantages

Low friction coefficient; no stick-slip effect
Wide temperature range and excellent chemical resistance, depending on the materials selected
Excellent abrasion and wear resistance
Very good wiping effect against external pollutions

Technical data

Temperature

-40°C/+200°C

Pressure

*

Speed

5 m/s

Medias

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

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 racleur aéronautique - Housing Groove Gland aerospace wiper seal BECA 485

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 Wiper Seal - BECA 485

Groove widths and bore diameters

Series Groove width Bore diameter
L1 min - max

ØD2

001 - 025 4.95 - 5.08 1.07
026 - 071 6.10 - 6.23 1.07

Tolerances on the rod diameters and groove diameters

Series Tolerance on
rod diameter
Ød1
Tolerance on
groove diameter
ØD1
001 - 040 -0.050/0 0/+0.025
041 - 060 -0.080/0 0/+0.080
061 - 071 -0.080/0 0/+0.130

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
010 - 071 0.13 - 0.26 0.13 - 0.38 2.00
71 dimensions found
485.A001
Standard request
001 12,65 19,46 4,95 113
485.A002
Standard request
002 14,22 21,03 4,95 114
485.A003
Standard request
003 15,82 22,63 4,95 115
485.A004
Standard request
004 17,40 24,21 4,95 116
485.A005
Standard request
005 19,00 25,81 4,95 117
485.A006
Standard request
006 20,57 27,38 4,95 118
485.A007
Standard request
007 22,17 28,98 4,95 119
485.A008
Standard request
008 23,75 30,56 4,95 120
485.A009
Standard request
009 25,35 32,16 4,95 121
485.A010
Standard request
010 26,92 33,73 4,95 122
485.A011
Standard request
011 28,52 35,33 4,95 123
485.A012
Standard request
012 30,10 36,91 4,95 124
485.A013
Standard request
013 31,70 38,51 4,95 125
485.A014
Standard request
014 33,27 40,08 4,95 126
485.A015
Standard request
015 34,87 41,68 4,95 127
485.A016
Standard request
016 36,45 43,26 4,95 128
485.A017
Standard request
017 38,05 44,86 4,95 129
485.A018
Standard request
018 41,22 48,03 4,95 131
485.A019
Standard request
019 44,40 51,21 4,95 132
485.A020
Standard request
020 47,57 54,38 4,95 135
485.A021
Standard request
021 50,75 57,56 4,95 137
485.A022
Standard request
022 53,92 60,73 4,95 139
485.A023
Standard request
023 57,10 63,91 4,95 141
485.A024
Standard request
024 60,27 67,08 4,95 143
485.A025
Standard request
025 63,45 70,26 4,95 145
485.A026
Standard request
026 66,62 75,46 6,10 232
485.A027
Standard request
027 69,80 78,64 6,10 233
485.A028
Standard request
028 72,97 81,81 6,10 234
485.A029
Standard request
029 76,12 84,96 6,10 235
485.A030
Standard request
030 79,30 88,14 6,10 236
485.A031
Standard request
031 82,47 91,31 6,10 237
485.A032
Standard request
032 85,65 94,49 6,10 238
485.A033
Standard request
033 88,82 97,66 6,10 239
485.A034
Standard request
034 92,00 100,84 6,10 240
485.A035
Standard request
035 95,17 104,01 6,10 241
485.A036
Standard request
036 98,35 107,19 6,10 242
485.A037
Standard request
037 101,52 110,36 6,10 243
485.A038
Standard request
038 104,70 113,54 6,10 244
485.A039
Standard request
039 107,87 116,71 6,10 245
485.A040
Standard request
040 111,05 119,89 6,10 246
485.A041
Standard request
041 114,22 123,06 6,10 247
485.A042
Standard request
042 117,40 126,24 6,10 248
485.A043
Standard request
043 120,57 129,41 6,10 249
485.A044
Standard request
044 123,75 132,59 6,10 250
485.A045
Standard request
045 126,92 135,76 6,10 251
485.A046
Standard request
046 130,10 138,94 6,10 252
485.A047
Standard request
047 133,27 142,11 6,10 253
485.A048
Standard request
048 136,45 145,29 6,10 254
485.A049
Standard request
049 139,62 148,46 6,10 255
485.A050
Standard request
050 142,80 151,64 6,10 256
485.A051
Standard request
051 145,97 154,81 6,10 257
485.A052
Standard request
052 149,15 157,99 6,10 258
485.A053
Standard request
053 152,32 161,16 6,10 258
485.A054
Standard request
054 158,67 167,51 6,10 259
485.A055
Standard request
055 165,02 173,86 6,10 260
485.A056
Standard request
056 171,37 180,21 6,10 261
485.A057
Standard request
057 177,72 186,56 6,10 262
485.A058
Standard request
058 184,07 192,91 6,10 263
485.A059
Standard request
059 190,42 199,26 6,10 264
485.A060
Standard request
060 196,77 205,61 6,10 265
485.A061
Standard request
061 203,12 211,96 6,10 266
485.A062
Standard request
062 215,82 224,66 6,10 268
485.A063
Standard request
063 228,52 237,36 6,10 270
485.A064
Standard request
064 241,22 250,06 6,10 272
485.A065
Standard request
065 253,92 262,76 6,10 274
485.A066
Standard request
066 266,62 275,46 6,10 275
485.A067
Standard request
067 279,32 288,16 6,10 276
485.A068
Standard request
068 292,02 300,86 6,10 277
485.A069
Standard request
069 304,72 313,56 6,10 278
485.A070
Standard request
070 317,42 326,26 6,10 278
485.A071
Standard request
071 330,12 338,96 6,10 279