BECA 170 - 179
Description
The BECA 170 - 179 profiles are double acting composite rod seals composed of a filled PTFE friction ring and pre-tightened rubber O'Ring. They can be mounted in the grooves of the O'Rings.
Advantages
Suitable for a reduced size
Low friction coefficient; no stick-slip effect
Excellent wear 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 | 1.6 MPa |
Speed | 5 m/s |
Medias | Lubricated air |
Applications
Shock absorbers
Distributor
Standard cylinders
Materials
Friction ring
Virgin PTFE
Bronze-filled PTFE
Carbon-filled PTFE
PE-UHMW
O'Ring
NBR 70 Shore A
HNBR 70 Shore A
EPDM 70 Shore A
Dimensions
Installation dimensions
Installation dimensions
Rod diameter Ød1 f8/h9 |
Groove diameter | Groove width | Radial section | O'Ring cross-section |
|
---|---|---|---|---|---|
BECA 170 Standard series |
BECA 179 Extended series |
ØD1 H9 | L1 0/+0.20 | S | Ød2 |
4.0 - 9.9 | 2.0 - 129.9 | d1 + 2.90 | 2.40 | 1.45 | 1.78 |
10.0 - 19.9 | 5.0 - 249.9 | d1 + 4.50 | 3.60 | 2.25 | 2.62 |
20.0 - 39.9 | 5.0 - 449.9 | d1 + 6.20 | 4.80 | 3.10 | 3.53 |
40.0 - 119.9 | 12.0 - 649.9 | d1 + 9.40 | 7.10 | 4.70 | 5.33 |
120.0 - 649.9 | 60.0 - 999.9 | d1 + 12.20 | 9.50 | 6.10 | 6.99 |
650.0 - 999.9 | 110.0 - 999.9 | d1 + 15.00 | 10.00 | 7.50 | 8.40 |
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
Good resistance to chemical products Efficient as part of dynamic |
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
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
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
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
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 |
Other grades of materials are available depending on your specificities.
Technical data
Extrusion gaps
Radial section S |
Radial extrusion gap F/2 |
---|---|
0.0 MPa to 5.0 MPa | |
1.45 | 0.20 |
2.25 | 0.25 |
3.10 | 0.35 |
4.70 | 0.50 |
6.10 | 0.50 |
7.50 | 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 |
---|---|---|---|
1.45 | 0.30 | 0.40 | 3.00 |
2.25 | 0.30 | 0.40 | 3.00 |
3.10 | 0.30 | 0.60 | 3.00 |
4.70 | 0.30 | 0.80 | 3.00 |
6.10 | 0.30 | 0.80 | 5.00 |
7.50 | 0.30 | 1.00 | 6.00 |
170.003
|
3,00 | 5,90 | 2,40 |
170.004
|
4,00 | 6,90 | 2,40 |
170.005
|
5,00 | 7,90 | 2,40 |
170.006
|
6,00 | 8,90 | 2,40 |
170.007
|
7,00 | 9,90 | 2,40 |
170.008
|
8,00 | 10,90 | 2,40 |
170.009
|
9,00 | 11,90 | 2,40 |
170.010
|
10,00 | 14,50 | 3,60 |
170.012
|
12,00 | 16,50 | 3,60 |
170.014
|
14,00 | 18,50 | 3,60 |
170.015
|
15,00 | 19,50 | 3,60 |
170.016
|
16,00 | 20,50 | 3,60 |
170.018
|
18,00 | 22,50 | 3,60 |
170.020
|
20,00 | 26,20 | 4,80 |
170.022
|
22,00 | 28,20 | 4,80 |
170.025
|
25,00 | 31,20 | 4,80 |
170.028
|
28,00 | 34,20 | 4,80 |
170.030
|
30,00 | 36,20 | 4,80 |
170.032
|
32,00 | 38,20 | 4,80 |
170.035
|
35,00 | 41,20 | 4,80 |
170.036
|
36,00 | 42,20 | 4,80 |
170.038
|
38,00 | 44,20 | 4,80 |
170.040
|
40,00 | 49,40 | 7,10 |
170.042
|
42,00 | 51,40 | 7,10 |
170.045
|
45,00 | 54,40 | 7,10 |
170.048
|
48,00 | 57,40 | 7,10 |
170.050
|
50,00 | 59,40 | 7,10 |
170.052
|
52,00 | 61,40 | 7,10 |
170.055
|
55,00 | 64,40 | 7,10 |
170.056
|
56,00 | 65,40 | 7,10 |
170.058
|
58,00 | 67,40 | 7,10 |
170.060
|
60,00 | 69,40 | 7,10 |
170.062
|
62,00 | 71,40 | 7,10 |
170.063
|
63,00 | 72,40 | 7,10 |
170.065
|
65,00 | 74,40 | 7,10 |
170.068
|
68,00 | 77,40 | 7,10 |
170.070
|
70,00 | 79,40 | 7,10 |
170.075
|
75,00 | 84,40 | 7,10 |
170.080
|
80,00 | 89,40 | 7,10 |
170.085
|
85,00 | 94,40 | 7,10 |
170.090
|
90,00 | 99,40 | 7,10 |
170.095
|
95,00 | 104,40 | 7,10 |
170.100
|
100,00 | 109,40 | 7,10 |
170.105
|
105,00 | 114,40 | 7,10 |
170.110
|
110,00 | 119,40 | 7,10 |
170.115
|
115,00 | 124,40 | 7,10 |
170.120
|
120,00 | 132,20 | 9,50 |
170.125
|
125,00 | 137,20 | 9,50 |
170.130
|
130,00 | 142,20 | 9,50 |
170.135
|
135,00 | 147,20 | 9,50 |
170.140
|
140,00 | 152,20 | 9,50 |
170.145
|
145,00 | 157,20 | 9,50 |
170.150
|
150,00 | 162,20 | 9,50 |
170.155
|
155,00 | 167,20 | 9,50 |
170.160
|
160,00 | 172,20 | 9,50 |
170.165
|
165,00 | 177,20 | 9,50 |
170.170
|
170,00 | 182,20 | 9,50 |
170.175
|
175,00 | 187,20 | 9,50 |
170.180
|
180,00 | 192,20 | 9,50 |
170.185
|
185,00 | 197,20 | 9,50 |
170.190
|
190,00 | 202,20 | 9,50 |
170.195
|
195,00 | 207,20 | 9,50 |
170.200
|
200,00 | 212,20 | 9,50 |
170.205
|
205,00 | 217,20 | 9,50 |
170.210
|
210,00 | 222,20 | 9,50 |
170.215
|
215,00 | 227,20 | 9,50 |
170.220
|
220,00 | 232,20 | 9,50 |
170.230
|
230,00 | 242,20 | 9,50 |
170.240
|
240,00 | 252,20 | 9,50 |
170.250
|
250,00 | 262,20 | 9,50 |
170.260
|
260,00 | 272,20 | 9,50 |
170.270
|
270,00 | 282,20 | 9,50 |
170.280
|
280,00 | 292,20 | 9,50 |
170.290
|
290,00 | 302,20 | 9,50 |
170.300
|
300,00 | 312,20 | 9,50 |
170.310
|
310,00 | 322,20 | 9,50 |
170.320
|
320,00 | 332,20 | 9,50 |
170.330
|
330,00 | 342,20 | 9,50 |
170.340
|
340,00 | 352,20 | 9,50 |
170.350
|
350,00 | 362,20 | 9,50 |
170.360
|
360,00 | 372,20 | 9,50 |
170.370
|
370,00 | 382,20 | 9,50 |
170.380
|
380,00 | 392,20 | 9,50 |
170.390
|
390,00 | 402,20 | 9,50 |
170.400
|
400,00 | 412,20 | 9,50 |
170.450
|
450,00 | 462,20 | 9,50 |
170.500
|
500,00 | 512,20 | 9,50 |
170.550
|
550,00 | 562,20 | 9,50 |
170.600
|
600,00 | 612,20 | 9,50 |
170.650
|
650,00 | 665,00 | 10,00 |
170.700
|
700,00 | 715,00 | 10,00 |
170.750
|
750,00 | 765,00 | 10,00 |
170.800
|
800,00 | 815,00 | 10,00 |
170.850
|
850,00 | 865,00 | 10,00 |
170.900
|
900,00 | 915,00 | 10,00 |
170.950
|
950,00 | 965,00 | 10,00 |