Rod seal UIP2

Description

The UIP2 is a hydraulic U-profile rod seal, asymmetrical and single-acting, with a set-back inner lip and an additional sealing edge. The main lip forms an optimal oil film and the sealing edge holds back the ingress of dirt. The press fit on the outer diameter ensures static sealing in standardised housings according to ISO 5597.

Assembly

Fit into a closed groove according to ISO 5597 and the dimensions on the datasheet. Clean the housing thoroughly, chamfer and round off sharp edges, and do not drag the seal over cutting edges, threads or keyways, using a mounting sleeve if necessary. Lubricate the rod with oil before assembly to ease installation and protect the lips.

Advantages

Materials

Made of 90 to 92 Shore A POLYURETHANE (PU). This material combines high mechanical and wear resistance with good elastic recovery, allowing it to work at high pressures without extrusion. It is compatible with HL and HLP mineral hydraulic oils, lubricating oils and mineral based 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-22284.5 UIP2	22	28	4.5	5	3
U-28365.3 UIP2	28	36	5.3	6.3	3
U-405010 UIP2	40	50	10	11	4
U-405510 UIP2	40	55	10	11	5
U-40485.3 UIP2	40	48	5.3	6.3	3
U-45557 UIP2	45	55	7	8	4
U-50628.6 UIP2	50	62	8.6	9.6	4.5
U-50607 UIP2	50	60	7	8	4
U-506010 UIP2	50	60	10	11	4
U-506510 UIP2	50	65	10	11	5
U-50628 UIP2	50	62	8	9	4.5
U-607012.5 UIP2	60	70	12.5	13.5	4
U-607012 UIP2	60	70	12	13	4
U-658011.5 UIP2	65	80	11.5	12.5	5
U-65757 UIP2	65	75	7	8	4
U-70807 UIP2	70	80	7	8	4
U-80907 UIP2	80	90	7	8	4
U-10011312.5 UIP2	100	113	12.5	13.5	4.5

Technical drawing and installation parameters of the UIP2 rod seal

This technical diagram defines the essential dimensions and geometric variables for the correct housing and installation of the UIP2 rod seal. It specifies the critical dimensions linked to the specification tables, such as the seal width (b), the groove width (B), the rod inner diameter (Ød) and the housing outer diameter (ØD). It also details the maximum groove bottom radius (r < 0.40 mm), the length of the lead-in chamfer (C) and its 20° angle. These parameters ensure a suitable press fit on the outer diameter for static sealing in ISO 5597 housings, promote optimum oil film formation with the main lip and protect the sealing edge during installation.

Three-dimensional view and components of the UIP2 rod seal

This 3D illustration details the basic structure of the UIP2 hydraulic rod seal. The diagram shows its key elements: the polyurethane body with an asymmetrical U-profile, the asymmetrical sealing lips (with the recessed inner lip) and the additional sealing edge. This configuration allows it to form an optimum oil film and keep friction under control, guaranteeing a secure press fit in the groove and largely preventing the ingress of dirt.

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