Rod seal UIB

Description

The UIB is a single-acting rod seal for hydraulic applications, made up of a polyurethane sealing element and a thermoplastic back-up ring. The back-up ring extends the working range against pressure and extrusion gaps, while a secondary sealing lip reinforces fluid retention and protects the dynamic area against the ingress of dirt. Its simple groove design makes fitting and maintenance easier.

Assembly

Fit into a closed groove according to the dimensions on the datasheet. Clean the housing thoroughly, chamfer and round off sharp edges and do not drag the seal over cutting edges. Lubricate the rod and the element before assembly to ease installation and protect the lips.

Advantages

Materials

Made of POLYURETHANE for the sealing body and POM for the back-up ring. This combination offers good resistance to wear and extrusion, and is compatible with mineral hydraulic oils and greases. For HFA, HFB and HFC fire-resistant fluids, compatibility and temperature ranges should be confirmed according to the compound.

Technical data

NO.	Ød	ØD	b	B	C
U-22306 UIB	22	30	6	7	4
U-25355 UIB	25	35	5	6	4
U-28386 UIB	28	38	6	7	4
U-2835.55 UIB	28	35.5	5	6	4
U-30408 UIB	30	40	8	9	4
U-32459.5 UIB	32	45	9.5	10.5	6
U-35458 UIB	35	45	8	9	4
U-35457 UIB	35	45	7	8	4
U-35445.5 UIB	35	44	5.5	6.5	4
U-35.5457.5 UIB	35.5	45	7.5	8.5	4
U-36468 UIB	36	46	8	9	4
U-36445.5 UIB	36	44	5.5	6.5	4
U-405010 UIB	40	50	10	11	4
U-405212 UIB	40	52	12	13	6
U-405210.9 UIB	40	52	10.9	11.9	6
U-425110 UIB	42	51	10	11	4
U-455510 UIB	45	55	10	11	4
U-45557 UIB	45	55	7	8	4
U-506010 UIB	50	60	10	11	4
U-50628 UIB	50	62	8	9	6
U-526810 UIB	52	68	10	11	6.5
U-556510 UIB	55	65	10	11	4
U-556512 UIB	55	65	12	13	4
U-567110 UIB	56	71	10	11	6.5
U-607010 UIB	60	70	10	11	4
U-607512 UIB	60	75	12	13	6.5
U-606813.5 UIB	60	68	13.5	14.5	4
U-63758 UIB	63	75	8	9	6
U-63759 UIB	63	75	9	10	6
U-63758.5 UIB	63	75	8.5	9.5	6
U-637810 UIB	63	78	10	11	6.5
U-658012 UIB	65	80	12	13	6.5
U-708010 UIB	70	80	10	11	4
U-708212 UIB	70	82	12	13	6
U-708511.5 UIB	70	85	11.5	12.5	6.5
U-758512 UIB	75	85	12	13	4
U-788613.5 UIB	78	86	13.5	14.5	4
U-809012 UIB	80	90	12	13	4
U-809211 UIB	80	92	11	12	6
U-809511.4 UIB	80	95	11.4	12.4	6.5
U-8510012 UIB	85	100	12	13	6.5
U-9010012 UIB	90	100	12	13	4
U-9010510 UIB	90	105	10	11	6.5
U-9510512 UIB	95	105	12	13	4
U-10011512 UIB	100	115	12	13	6.5
U-10012012 UIB	100	120	12	13	7
U-10511512 UIB	105	115	12	13	4
U-11012514.6 UIB	110	125	14.6	15.6	6.5
U-11013015 UIB	110	130	15	16	7
U-11512512 UIB	115	125	12	13	4
U-12014014.6 UIB	120	140	14.6	15.6	7
U-12013511.5 UIB	120	135	11.5	12.5	6.5
U-12514011 UIB	125	140	11	12	6.5
U-13014012 UIB	130	140	12	13	4
U-13514512 UIB	135	145	12	13	4
U-14016014.6 UIB	140	160	14.6	15.6	7
U-1401559 UIB	140	155	9	10	6.5
U-15016515 UIB	150	165	15	16	6.5
U-16017012 UIB	160	170	12	13	4
U-16017515 UIB	160	175	15	16	6.5
U-17018515 UIB	170	185	15	16	6.5
U-19521515 UIB	195	215	15	16	7
U-20022015 UIB	200	220	15	16	7
U-22024015 UIB	220	240	15	16	7
U-26028015 UIB	260	280	15	16	7
U-28030015 UIB	280	300	15	16	7

Technical drawing and installation parameters of the UIB rod seal

This technical diagram defines the essential dimensions and geometric variables for the correct housing and installation of the UIB rod seal. In it you will find the critical dimensions linked to the specification tables, such as the seal width (b), the groove width (B), the inner or rod diameter (Ød) and the housing outer diameter (ØD). It also details the tolerances of the bottom and edge radii (r and r1), together with the 20° lead-in chamfer (rounded and free of burrs). These values guarantee precise guidance, prevent damage to the sealing lips during installation and ensure optimum, long-lasting sealing under pressure.

Three-dimensional view and components of the UIB rod seal

This 3D illustration details the basic structure of the UIB single-acting rod seal for hydraulic applications. The diagram shows its key components and features: the polyurethane body, the asymmetrical sealing lips (with the shortened inner lip and a sealing edge/secondary lip) and the thermoplastic back-up ring. This combination of materials and design extends the working range against high pressures and extrusion gaps, offering optimum fluid retention and protection against dirt.

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