K31 Hydraulic rod seals

K31 heavy duty rod seal is designed for working at hydraulic rod applicaitions consisting of special geometry polyurethane seal, elastomer ring that works as an energizer at low pressures and thermoplastic backup ring for superior extrusion resistance.

Advantages

Superior static and dynamic sealing effect
Design providing good sealing performance at svariable pressure levels.
Improved sealing gap thanks to the back-up ring
Safely operating with the elastomer o-ring in long duration locking systems
High wear resistance and compressive strength

Area of Application

Mining industry
Iron and steel industry
Scrap metal presses
Mobile machinery
Marine hydraulics

In this catalog

155 K31 parts, bore 25–340 mm across 74 sizes. Most common section heights: 14.5 mm (21), 9.53 mm (15), 15.88 mm (14).

Same bore, other series

If a K31 size is not the right profile, these cover the same ID/OD combinations:

155 parts in catalog

Technical table

Live column filters for code, category, ID, OD and H — same workflow as the store.

155 parts

Code (SKU)	Category	ID (d)	OD (D)	H (L)	Action
K31-025	K31	25	35	7.3	View
K31-030	K31	30	40	10	View
K31-030/1	K31	30	40	7.3	View
K31-031	K31	31.75	38.1	6.35	View
K31-031/1	K31	31.75	41.28	6.35	View
K31-031/3	K31	31.75	41.28	7.95	View
K31-034	K31	34.93	47.63	9.53	View
K31-035	K31	35	50	9.5	View
K31-038	K31	38.1	48	6.35	View
K31-038/1	K31	38.1	50.8	9.53	View
K31-038/3	K31	38.1	47.63	7.93	View
K31-040	K31	40	55	9.5	View
K31-040/1	K31	40	50	7.3	View
K31-040/2	K31	40	55	11.4	View
K31-040/3	K31	40	52	8.6	View
K31-044	K31	44.45	57.15	9.52	View
K31-044/1	K31	44.45	53.98	6.35	View
K31-044/2	K31	44.45	53.98	9.53	View
K31-045	K31	45	60	11.4	View
K31-050	K31	50	65	11.4	View
K31-050/1	K31	50.8	60.32	9.52	View
K31-050/2	K31	50.8	63.5	10	View
K31-050/3	K31	50	60	7.3	View
K31-050/6	K31	50	62	8.7	View
K31-053	K31	53.98	67.36	9.53	View
K31-055	K31	55	70	11.4	View
K31-055/1	K31	55	68	13	View
K31-056	K31	56	71	11.4	View
K31-057	K31	57.15	69.85	9.52	View
K31-057/1	K31	57.15	66.67	9.53	View
K31-060	K31	60	75	11.4	View
K31-060/1	K31	60	73	13	View
K31-060/2	K31	60	72	8.6	View
K31-060/5	K31	60.33	73.03	9.53	View
K31-063	K31	63.5	76.2	9.52	View
K31-063/1	K31	63	75	8.6	View
K31-063/2	K31	63	78	11.4	View
K31-063/3	K31	63.5	73.02	9.53	View
K31-063/4	K31	63.5	79.38	12.7	View
K31-065	K31	65	78	10	View
K31-065/1	K31	65	80	9	View
K31-069	K31	69.85	82.55	9.52	View
K31-070	K31	70	85	11.4	View
K31-070/1	K31	70	83	10	View
K31-070/2	K31	70	85	9	View
K31-070/3	K31	70	80	12	View
K31-070/4	K31	70	85	10	View
K31-070/5	K31	70	82	8.6	View
K31-075	K31	75	88	10	View
K31-075/1	K31	75	90	9	View

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