in Fr HOME . THE COMPANY JP3 . OUR RANGE: bearings and steering gear . Our CUSTOM department . Our references . DOWNLOADS area . Faq . CONTACT Why self-aligning bearings? JP3 self-aligning rudder bearings have been studied and designed to solve all rudder malfunction problems, potentially due to: - the bending of the rudder stock during navigation. - misalignment of the rudder bit during assembly, - the deformation of the structure of the hull under the traction of the rigging, - incorrect selection of the material of the bit, which, separately or together, cause a general misalignment of the rudder bit with the effect of hardness or even blocking of the bar. The alignment is done via a ball joint? needles? shingles? The bearing is provided via an Ertalyte ball joint or Ertalyte ball joint integrating stainless steel needles (type 1 to 3 bearings) or via 1, 2 or 3 roller-shaped bearing tracks (type 4 to 7 bearings). Our design office, after having calculated the lateral loads exerted on your rudder, will specify the type of bearing most appropriate to the configuration of your boat. Can my kneecap swell? The ball joints are made from a plastic that will not absorb water or swell. Is my rudder hard / blocked? Two possible reasons: 1 / There is dirt or limestone that has dried around the kneecap, this can happen after a long time without sailing and / or on land. In this case, the kneecap can be released by adding hot vinegar from above. (directly by the upper bearing in the case of a full rim tube, or at the top of the ruffle tube in the case of ½ tube) The ball joint must then be removed and cleaned or replaced if worn. Cleaning is recommended before each long dry-out. 2 / The bearing has corroded and the aluminum oxide has blocked the ball joint For bearings permanently submerged in port, there may be problems of electrical corrosion from the boat itself or from the external environment (electrical leakage from another boat, steel pillar, electric cable, etc.). This can happen after a while despite the bearing anodization. Dans ce cas de palier immergé, il est conseillé de connecter une anode au palier (ou au moins à la mèche) et de la plonger à proximité du palier lorsque le bateau est au port. Cela peut se faire par le biais d'une anode fixée sous le bateau ou uniquement avec une anode plongeante. Si l'anode a des traces de corrosion après quelques mois, c'est qu'elle remplit bien son rôle. Un palier corrodé ne peut être réparé et devra être remplacé. Il y a du jeu dans mon safran, il « claque » Les rotules doivent être usées, il faut les changer. La première rotule usée est souvent celle du bas. Lors du changement de rotule il faut vérifier l'état de la pièce en aluminium. Dois je lubrifier la rotule ? Les paliers à rotule type 1 sans joints ne nécessitent pas de lubrification. En naviguant l'eau vient circuler autour de la rotule et ainsi la nettoyer. La graisse peut avoir un effet inverse et retenir les impuretés autour de la rotule, et finalement bloquer la rotule. Pour les rotules avec joints toriques il est possible d'ajouter de l'huile fine pour faciliter le placement de la rotule dans son boîtier. La lubrification à l'aide de graisse marine ne se fait que pour les paliers à aiguilles (ref : 15,xx,xx) IL NE FAUT SURTOUT PAS - poncer le palier au risque d'enlever la couche d'anodisation et ensuite d'avoir des problèmes de corrosion - appliquer un anti-fouling contenant du cuivre sur le palier. Comment retirer ma rotule ? A l'inverse de l'installation. Rotation un 1/4 de tour puis la pousser. cf.schéma ci dessus. Where can I order a replacement bearing? Please see our spare parts section . INSTALLATION INSTRUCTIONS and MAINTENANCE ADVICE are available on our site. Other questions? Please do not hesitate to contact us . Follow us on FB Connect to Facebook What's new? SPARE PARTS , Detached pieces, Click here See our FAQs See our FAQs Quality commitments Cookie Policy | Sitemap Log in Cookie Policy This website uses cookies to give you the best online experience. Please let us know if you agree by clicking on the “Accept” option below. If you’d like to find out more about the cookies we use and set your individual cookie preferences, please review our Cookie Policy. Privacy Policy Strictly necessary Functional Performance Marketing / Third Party Accept all Accept only selected