LBH-Dust ring is a part to remove the dirt, sand, rainwater and frost adhered to the outer surface of the cylinder by the reciprocating piston rod, so as to prevent the external dust and rainwater from entering the inside of the sealing mechanism. The LBH Wiper Seal/Dust-proof ring is a part to remove dirt, sand, rain, and frost that the reciprocating piston rod adheres to on the external surface of the cylinder to prevent the external dust and rain from entering the inner part of the sealing mechanism. The dust-proof sealing ring is mainly used in one of special sealing parts of steel plant industry.

Standard			NBR/FKM
Special (on request)			FKM

Specification	Groove size
	df8	D-0.2		D1±0.1		L±0.2			a±01
11.2-19.2-4.5/6	11.2	19.2		15.5		5			2
12-20-4.5/6	12	20		16.3		5			2
12.5-20.5-4.5/6	12.5	20.5		16.8		5			2
14-22-4.5/6	14	22		18.3		5			2
16-22-3.2/4	16	22		20.3		5			2

Specification	Groove size
	df8	D-0.2	D1±0.1	L±0.2	a±01
16-24-4.5/6	16	24	20.3	5	2
18-26-4.5/6	18	26	22.3	5	2
20-28-4.5/6	20	28	24.3	5	2
22-30-4.5/6	22	30	26.3	5	2
22.4-30.4-4.5/6	22.4	30.4	26.7	5	2

Pressure[MPa]

Temperature [C]

Sliding speed[m/s]

Medium

Standard

15

NBR:-35...+105

0.5

Hydraulic oils(mineral oil-based)

FKM:-35 ...+200

● Insensibility against shock loads and pressure peaks ● High resistance against extrusion ● Sufficient lubrication due to pressure medium between the sealing lips ● Suitable for hardest working conditions ● Easy installation

Specification	Groove size
	df8	D-0.2	D1±0.1	L±0.2	a±01
23.5-31.5-4.5/6	23.5	31.5	27.8	5	2
25-33-4.5/6	25	33	29.3	5	2
28-36-4.5/6	28	36	32.5	5	2
30-38-5/6.5	30	38	34	6	2
31.5-39.5-5/6.5	31.5	39.5	35.5	6	2
32-40-5/6.5	32	40	36	6	2
35-43-5/6.5	35	43	39	6	2
35.5-43.5-5/6.5	35.5	43.5	39.5	6	2
36-44-5/6.5	36	44	40	6	2
38-46-5/6.5	38	46	42	6	2
40-48-5/6.5	40	48	44	6	2
45-53-5/6.5	45	53	49	6	2
48-56-5/6.5	48	56	52	6	2
50-58-5/6.5	50	58	54	6	2
53-61-5/6.5	53	61	57	6	2
55-63-5/6.5	55	63	59	6	2
56-64-5/6.5	56	64	60	6	2
58-66-5/6.5	58	66	62	6	2
60-68-5/6.5	60	68	64	6	2
63-71-5/6.5	63	71	67	6	2
65-73-5/6.5	65	73	69	6	2
67-75-5/6.5	67	75	71	6	2
70-80-6/8	70	80	75	7	3
71-81-6/8	71	81	76	7	3
75-85-6/8	75	85	80	7	3
80-90-6/8	80	90	85	7	3
85-95-6/8	85	95	90	7	3
90-100-6/8	90	100	95	7	3
95-105-6/8	95	105	100	7	3
98-108-6/8	98	108	103	7	3
100-110-6/8	100	110	105	7	3
105-115-6/8	105	115	110	7	3
106-116-6/8	106	116	111	7	3
110-120-6/8	110	120	115	7	3
112-122-6/8	112	122	117	7	3
115-125-6/8	115	125	120	7	3

Specification	Groove size
	df8	D-0.2	D1±0.1	L±0.2	a±01
118-128-6/8	118	128	123	7	3
120-130-6/8	120	130	125	7	3
125-138-7/9.5	125	138	132	8	3
130-143-7/9.5	130	143	137	8	3
132-145-7/9.5	132	145	139	8	3
136-149-7/9.5	136	149	143	8	3
140-153-7/9.5	140	153	147	8	3
145-158-7/9.5	145	158	152	8	3
150-163-7/9.5	150	163	157	8	3
153-165-7/9.5	153	165	160	8	3
153-166-7/9.5	153	166	160	8	3
155-167-7/9.5	155	167	162	8	3
155-168-7/9.5	155	168	162	8	3
160-173-7/9.5	160	173	167	8	3
165-178-7/9.5	165	178	172	8	3
165-179-7/9.5	165	179	172	8	3
170-183-7/9.5	170	183	177	8	3
175-188-7/9.5	175	188	182	8	3
180-190-7/9.5	180	190	187	8	3
180-193-7/9.5	180	193	187	8	3
190-203-7/9.5	190	203	197	8	3
200-213-7/9.5	200	213	207	8	3
204-217-7/9.5	204	217	211	8	3
205-218-7/9.5	205	218	212	8	3
210-223-7/9.5	210	223	217	8	3
220-233-7/9.5	220	233	227	8	3
224-237-7/9.5	224	237	231	8	3
225-238-7/9.5	225	238	232	8	3
230-243-7/9.5	230	243	237	8	3
240-256-10/13	240	256	248	11	4
250-266-10/13	250	266	258	11	4
280-296-9/12	280	296	288	10	4
310-326-9/12	310	326	318	10	4
355-375-10/14	355	375	365	11	5
500-520-11.5/15.5	500	520	510	12.5	5