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BECA 012 Piston

BECA 012 Piston
BECA 012

Description

The BECA 012 Piston profile is a spiral back-up ring with a rectangular profile. The ring is systematically assembled in tandem with an O'Ring or an X'Ring. An uncut version of this profile can be made.

Advantages

Used in static and dynamic applications
Only for alternating movements
Large contact surface area, which protects the O'Ring from deformation caused by pulsating pressures
Preferred assembled in a closed groove
Suitable for non-standard dimensions as the back-up ring can be shortened and then adjusted
Compensates for the effects caused by significant thermal variations and tolerances, as at least one coil in the spiral rests on each point of the circumference to support the O'Ring against play

Technical data

Temperature

-200°C/+260°C

Pressure

< 250 MPa in static applications
< 40 MPa in alternating applications

Speed

2 m/s in alternating applications

Medias

The majority of liquids, or gaseous or chemical fluids.

Applications

Automotive
Hydraulic equipment
Mobile machinery
Machine tools
Injection presses
Valves
Hydraulic cylinders

Materials

Standard virgin PTFE
Filled PTFE (fibreglass, carbon, bronze)
Other materials may be used

Dimensions
Materials
Design guidelines

Dimensions

Installation drawingLogement Gorge Bague anti-extrusion - Housing Groove Back-up ring - BECA 012

Materials

PTFE is a thermoplastic polymer made of tetrafluoroethylene with exceptional properties - very low friction coefficient (adhesive friction and sliding friction are almost equal), physiologically safe for temperatures up to +200°C, excellent electrical insulation properties, and excellent chemical compatibility with the majority of fluids. On the other hand, as this material is plastic and not elastic, so it cannot easily replace rubber bases.

Material Code
Virgin PTFE P
Bronze-filled PTFE B
Carbon-filled PTFE C
Fibreglass-filled PTFE V

Design guidelines

Housing Groove - BECA 012 Piston

Installation dimensions in static and dynamic applications - External (cylinder) sealing only.

O'Ring Back-up ring Housing dimensions Radius
Cross-section
Ød2
Radial height
W2
Thickness Cylinder sealing Groove width
Groove diameter
Ød3 h9
Static Dynamic
static dynamic 2xT2 static dynamic L2 0/+0.20 L3 0/+0.20 L2 0/+020 L3 0/+0.20 R1 ±0.20
1.50 1.10 1.10 1.00 D4 - 2.20 D4 - 2.20 3.20 4.20 3.25 4.25 0.25
1.60 1.15 1.20 1.00 D4 - 2.30 D4 - 2.40 3.50 4.50 3.40 4.40 0.25
1.78 1.30 1.35 1.40 D4 - 2.60 D4 - 2.70 4.10 5.50 4.00 5.40 0.25
1.80 1.30 1.35 1.40 D4 - 2.60 D4 - 2.70 4.10 5.50 4.00 5.40 0.25
2.00 1.50 1.55 1.40 D4 - 3.00 D4 - 3.10 4.30 5.70 4.20 5.60 0.25
2.40 1.80 1.90 1.40 D4 - 3.60 D4 - 3.80 4.80 6.20 4.60 6.00 0.25
2.50 1.90 1.95 1.40 D4 - 3.80 D4 - 3.90 4.90 6.30 4.80 6.20 0.25
2.62 2.00 2.05 1.40 D4 - 4.00 D4 - 4.10 5.00 6.40 4.90 6.30 0.25
2.65 2.00 2.10 1.40 D4 - 4.00 D4 - 4.20 5.10 6.50 4.90 6.30 0.25
3.00 2.30 2.40 1.40 D4 - 4.60 D4 - 4.80 5.90 7.30 5.70 7.10 0.25
3.53 2.70 2.85 1.40 D4 - 5.40 D4 - 5.70 6.50 7.90 6.30 7.70 0.25
3.55 2.70 2.90 1.40 D4 - 5.40 D4 - 5.80 6.60 8.00 6.30 7.70 0.25
4.00 3.10 3.25 1.40 D4 - 6.20 D4 - 6.50 7.00 8.40 6.80 8.20 0.25
5.00 4.00 4.10 1.70 D4 - 8.00 D4 - 8.20 8.40 10.10 8.30 10.00 0.25
5.30 4.30 4.40 1.70 D4 - 8.60 D4 - 8.80 8.60 10.30 8.50 10.20 0.25
5.33 4.30 4.40 1.70 D4 - 8.60 D4 - 8.80 8.80 10.50 8.50 10.20 0.25
5.70 4.60 4.80 1.70 D4 - 9.20 D4 - 9.60 9.10 10.80 8.80 10.50 0.25
6.00 4.90 5.10 1.70 D4 - 9.80 D4 - 10.20 9.50 11.20 9.10 10.80 0.25
6.99 5.80 5.90 2.50 D4 - 11.60 D4 - 11.80 11.80 14.30 11.70 14.20 0.25
8.00 6.70 7.00 2.50 D4 - 13.40 D4 - 14.00 12.70 15.20 12.40 14.90 0.25
8.40 7.10 7.30 2.50 D4 - 14.20 D4 - 14.60 13.00 15.50 12.80 15.30 0.25
91 dimensions found
012.006033
Standard request
6,0 x 1,35 x 0,70 6,00 3,30 4,00 5,40 0,25 010.1A039 2,90 x 1,78
012.006038
Standard request
6,0 x 1,10 x 0,50 6,00 3,80 3,25 4,25 0,25 010.1B162 3,00 x 1,50
012.008053
Standard request
8,0 x 1,35 x 0,70 8,00 5,30 4,00 5,40 0,25 010.1A041 4,47 x 1,78
012.008058
Standard request
8,0 x 1,10 x 0,50 8,00 5,80 3,25 4,25 0,25 010.1B177 5,00 x 1,50
012.010073
Standard request
10,0 x 1,35 x 0,70 10,00 7,30 4,00 5,40 0,25 010.1A046 7,65 x 1,78
012.010078
Standard request
10,0 x 1,10 x 0,50 10,00 7,80 3,25 4,25 0,25 010.1B188 7,00 x 1,50
012.012089
Standard request
12,0 x 1,55 x 0,70 12,00 8,90 4,20 5,60 0,25 010.1B486 8,00 x 2,00
012.012093
Standard request
12,0 x 1,35 x 0,70 12,00 9,30 4,00 5,40 0,25 010.1A048 9,25 x 1,78
012.014109
Standard request
14,0 x 1,55 x 0,70 14,00 10,90 4,20 5,60 0,25 010.1B492 10,00 x 2,00
012.014113
Standard request
14,0 x 1,35 x 0,70 14,00 11,30 4,00 5,40 0,25 010.1A050 10,82 x 1,78
012.015119
Standard request
15,0 x 1,55 x 0,70 15,00 11,90 4,20 5,60 0,25 010.1B495 11,00 x 2,00
012.015123
Standard request
15,0 x 1,35 x 0,70 15,00 12,30 4,00 5,40 0,25 010.1A052 12,42 x 1,78
012.016129
Standard request
16,0 x 1,55 x 0,70 16,00 12,90 4,20 5,60 0,25 010.1B498 12,00 x 2,00
012.016133
Standard request
16,0 x 1,35 x 0,70 16,00 13,30 4,00 5,40 0,25 010.1A053 14,00 x 1,78
012.018149
Standard request
18,0 x 1,55 x 0,70 18,00 14,90 4,20 5,60 0,25 010.1B510 14,00 x 2,00
012.018153
Standard request
18,0 x 1,35 x 0,70 18,00 15,30 4,00 5,40 0,25 010.1A054 15,60 x 1,78
012.020169
Standard request
20,0 x 1,55 x 0,70 20,00 16,90 4,20 5,60 0,25 010.1B519 16,00 x 2,00
012.020173
Standard request
20,0 x 1,35 x 0,70 20,00 17,30 4,00 5,40 0,25 010.1A055 17,17 x 1,78
012.022189
Standard request
22,0 x 1,55 x 0,70 22,00 18,90 4,20 5,60 0,25 010.1B525 18,00 x 2,00
012.022193
Standard request
22,0 x 1,35 x 0,70 22,00 19,30 4,00 5,40 0,25 010.1A056 18,77 x 1,78
012.025219
Standard request
25,0 x 1,55 x 0,70 25,00 21,90 4,20 5,60 0,25 010.1B534 21,00 x 2,00
012.025223
Standard request
25,0 x 1,35 x 0,70 25,00 22,30 4,00 5,40 0,25 010.1A058 21,95 x 1,78
012.028232
Standard request
28,0 x 2,40 x 0,70 28,00 23,20 5,70 7,10 0,25 010.1BE19 22,00 x 3,00
012.028239
Standard request
28,0 x 2,05 x 0,70 28,00 23,90 4,90 6,30 0,25 010.1A205 23,47 x 2,62
012.030252
Standard request
30,0 x 2,40 x 0,70 30,00 25,20 5,70 7,10 0,25 010.1A285 24,00 x 3,00
012.030259
Standard request
30,0 x 2,05 x 0,70 30,00 25,90 4,90 6,30 0,25 010.1A207 25,07 x 2,62
012.032279
Standard request
32,0 x 2,65 x 0,70 32,00 27,90 4,90 6,30 0,25 010.1A208 26,64 x 2,62
012.035302
Standard request
35,0 x 2,40 x 0,70 35,00 30,20 5,70 7,10 0,25 010.1BE52 29,00 x 3,00
012.035309
Standard request
35,0 x 2,05 x 0,70 35,00 30,90 4,90 6,30 0,25 010.1A210 29,82 x 2,62
012.040352
Standard request
40,0 x 2,40 x 0,70 40,00 35,20 5,70 7,10 0,25 010.1BE73 34,00 x 3,00
012.040359
Standard request
40,0 x 2,05 x 0,70 40,00 35,90 4,90 6,30 0,25 010.1A213 34,59 x 2,62
012.042372
Standard request
42,0 x 2,40 x 0,70 42,00 37,20 5,70 7,10 0,25 010.1A304 36,00 x 3,00
012.042379
Standard request
42,0 x 2,05 x 0,70 42,00 37,90 4,90 6,30 0,25 010.1A214 36,17 x 2,62
012.045402
Standard request
45,0 x 2,40 x 0,70 45,00 40,20 5,70 7,10 0,25 010.1BE94 39,00 x 3,00
012.045409
Standard request
45,0 x 2,05 x 0,70 45,00 40,90 4,90 6,30 0,25 010.1A216 39,34 x 2,62
012.048415
Standard request
48,0 x 3,25 x 0,85 48,00 41,50 7,10 8,80 0,25 010.1BS39 40,00 x 4,00
012.048423
Standard request
48,0 x 2,85 x 0,70 48,00 42,30 6,30 7,70 0,25 010.1A382 40,87 x 3,53
012.050435
Standard request
50,0 x 3,25 x 0,85 50,00 43,50 7,10 8,80 0,25 010.1BS45 42,00 x 4,00
012.050443
Standard request
50,0 x 2,85 x 0,70 50,00 44,30 6,30 7,70 0,25 010.1A385 44,04 x 3,53
012.052463
Standard request
52,0 x 2,85 x 0,70 52,00 46,30 6,30 7,70 0,25 010.1A385 44,04 x 3,53
012.055493
Standard request
55,0 x 2,85 x 0,70 55,00 49,30 6,30 7,70 0,25 010.1A388 47,22 x 3,53
012.060535
Standard request
60,0 x 3,25 x 0,85 60,00 53,50 7,10 8,80 0,25 010.1BS72 52,00 x 4,00
012.060543
Standard request
60,0 x 2,85 x 0,70 60,00 54,30 6,30 7,70 0,25 010.1A394 53,57 x 3,53
012.063573
Standard request
63,0 x 2,85 x 0,70 63,00 57,30 6,30 7,70 0,25 010.1A397 56,74 x 3,53
012.065585
Standard request
65,0 x 3,25 x 0,85 65,00 58,50 7,10 8,80 0,25 010.1BS87 57,00 x 4,00
012.065593
Standard request
65,0 x 2,85 x 0,70 65,00 59,30 6,30 7,70 0,25 010.1A397 56,74 x 3,53
012.070643
Standard request
70,0 x 2,85 x 0,70 70,00 64,30 6,30 7,70 0,25 010.1A403 63,09 x 3,53
012.075685
Standard request
75,0 x 3,25 x 0,85 75,00 68,50 7,10 8,80 0,25 010.1BT14 67,00 x 4,00
012.075693
Standard request
75,0 x 2,85 x 0,70 75,00 69,30 6,30 7,70 0,25 010.1A406 66,27 x 3,53
012.080735
Standard request
80,0 x 3,25 x 0,85 80,00 73,50 7,10 8,80 0,25 010.1BT26 72,00 x 4,00
012.080743
Standard request
80,0 x 2,85 x 0,70 80,00 74,30 6,30 7,70 0,25 010.1A412 72,62 x 3,53
012.085785
Standard request
85,0 x 3,25 x 0,85 85,00 78,50 7,10 8,80 0,25 010.1BT41 77,00 x 4,00
012.085793
Standard request
85,0 x 2,85 x 0,70 85,00 79,30 6,30 7,70 0,25 010.1A416 78,97 x 3,53
012.090812
Standard request
90,0 x 4,40 x 0,85 90,00 81,20 8,50 10,20 0,25 010.1A558 78,74 x 5,33
012.090818
Standard request
90,0 x 4,10 x 0,85 90,00 81,80 8,30 10,00 0,25 010.1BK53 80,00 x 5,00
012.095862
Standard request
95,0 x 4,40 x 0,85 95,00 86,20 8,50 10,20 0,25 010.1A561 85,09 x 5,33
012.095868
Standard request
95,0 x 4,10 x 0,85 95,00 86,80 8,30 10,00 0,25 010.1BK59 85,00 x 5,00
012.100912
Standard request
100,0 x 4,40 x 0,85 100,00 91,20 8,50 10,20 0,25 010.1A564 91,44 x 5,33
012.100918
Standard request
100,0 x 4,10 x 0,85 100,00 91,80 8,30 10,00 0,25 010.1BK68 90,00 x 5,00
012.105962
Standard request
105,0 x 4,40 x 0,85 105,00 96,20 8,50 10,20 0,25 010.1A565 94,62 x 5,33
012.105968
Standard request
105,0 x 4,10 x 0,85 105,00 96,80 8,30 10,00 0,25 010.1BK77 95,00 x 5,00
012.110101
Standard request
110,0 x 4,40 x 0,85 110,00 101,20 8,50 10,20 0,25 010.1A568 100,97 x 5,33
012.110102
Standard request
110,0 x 4,10 x 0,85 110,00 101,80 8,30 10,00 0,25 010.1BK86 100,00 x 5,00
012.115106
Standard request
115,0 x 4,40 x 0,85 115,00 106,20 8,50 10,20 0,25 010.1A569 104,14 x 5,33
012.115107
Standard request
115,0 x 4,10 x 0,85 115,00 106,80 8,30 10,00 0,25 010.1BK98 105,00 x 5,00
012.120111
Standard request
120,0 x 4,40 x 0,85 120,00 111,20 8,50 10,20 0,25 010.1A572 110,49 x 5,33
012.120112
Standard request
120,0 x 4,10 x 0,85 120,00 111,80 8,30 10,00 0,25 010.1BW07 110,00 x 5,00
012.125116
Standard request
125,0 x 4,40 x 0,85 125,00 116,20 8,50 10,20 0,25 010.1A573 113,67 x 5,33
012.125117
Standard request
125,0 x 4,10 x 0,85 125,00 116,80 8,30 10,00 0,25 010.1BW16 115,00 x 5,00
012.130121
Standard request
130,0 x 4,40 x 0,85 130,00 121,20 8,50 10,20 0,25 010.1A576 120,02 x 5,33
012.130122
Standard request
130,0 x 4,10 x 0,85 130,00 121,80 8,30 10,00 0,25 010.1A489 120,00 x 5,00
012.135123
Standard request
135,0 x 5,90 x 1,25 135,00 123,20 11,70 14,20 0,25 010.1A741 120,02 x 6,99
012.140128
Standard request
140,0 x 5,90 x 1,25 140,00 128,20 11,70 14,20 0,25 010.1A744 126,37 x 6,99
012.150138
Standard request
150,0 x 5,90 x 1,25 150,00 138,20 11,70 14,20 0,25 010.1A748 135,89 x 6,99
012.160148
Standard request
160,0 x 5,90 x 1,25 160,00 148,20 11,70 14,20 0,25 010.1A751 145,42 x 6,99
012.170158
Standard request
170,0 x 5,90 x 1,25 170,00 158,20 11,70 14,20 0,25 010.1A755 158,12 x 6,99
012.180168
Standard request
180,0 x 5,90 x 1,25 180,00 168,20 11,70 14,20 0,25 010.1A758 164,47 x 6,99
012.190178
Standard request
190,0 x 5,90 x 1,25 190,00 178,20 11,70 14,20 0,25 010.1A763 177,17 x 6,99
012.200188
Standard request
200,0 x 5,90 x 1,25 200,00 188,20 11,70 14,20 0,25 010.1A765 183,52 x 6,99
012.210198
Standard request
210,0 x 5,90 x 1,25 210,00 198,20 11,70 14,20 0,25 010.1A769 196,22 x 6,99
012.220208
Standard request
220,0 x 5,90 x 1,25 220,00 208,20 11,70 14,20 0,25 010.1A771 202,57 x 6,99
012.230218
Standard request
230,0 x 5,90 x 1,25 230,00 218,20 11,70 14,20 0,25 010.1A773 215,27 x 6,99
012.240228
Standard request
240,0 x 5,90 x 1,25 240,00 228,20 11,70 14,20 0,25 010.1A775 227,97 x 6,99
012.250238
Standard request
250,0 x 5,90 x 1,25 250,00 238,20 11,70 14,20 0,25 010.1A777 240,67 x 6,99
012.280268
Standard request
280,0 x 5,90 x 1,25 280,00 268,20 11,70 14,20 0,25 010.1A781 266,07 x 6,99
012.300288
Standard request
300,0 x 5,90 x 1,25 300,00 288,20 11,70 14,20 0,25 010.1A783 278,77 x 6,99
012.320308
Standard request
320,0 x 5,90 x 1,25 320,00 308,20 11,70 14,20 0,25 010.1A787 304,17 x 6,99
012.350338
Standard request
350,0 x 5,90 x 1,25 350,00 338,20 11,70 14,20 0,25 010.1A789 329,57 x 6,99
012.400388
Standard request
400,0 x 5,90 x 1,25 400,00 388,20 11,70 14,20 0,25 010.1A793 380,37 x 6,99
012.420408
Standard request
420,0 x 5,90 x 1,25 420,00 408,20 11,70 14,20 0,25 010.1A795 405,26 x 6,99
012.450438
Standard request
450,0 x 5,90 x 1,25 450,00 438,20 11,70 14,20 0,25 010.1A797 430,66 x 6,99