BECA 485

Aerospace seals / Wiper seals - Scraper seals

BECA 485

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

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Product data - Aerospace wiper seal - BECA 485

Series	Rod diameter	Groove diameter	Groove width	O'Ring Series
Ød1	ØD1	L1 min

Dimensions

Materials

Technical data

Dimensions

Installation drawing Logement 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	Contact surface area
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
DV	V	PTFE + 25 % Glass	Blue		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
VM	M	PTFE + 15 % Glass + 5% MoS2	Grey		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
DX	X	GL Blue PTFE + Glass + Metal oxides	Turquoise blue		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
DB	B	PTFE + 60% Bronze	Dark brown		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
B4	B	PTFE + 40% Bronze	Dark brown		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
Series	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
Series	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