A roller bearing design is never "final". Even after installation into a machine or device, it may behave differently than expected based on earlier tests, calculations and simulations. Therefore constant engineering support to users is a must for a top bearing manufacturer. Here is an interesting case study .
See related article in BearingNews:
After the merger of Koyo Seiko and Toyoda Machine Works in 2006 to form JTEKT Corporation, engineers from both divisions have worked closely together to develop state of the art spindle shaft support bearings, which are key to modern machine tools with high accuracy & precision requirements.
See related article in BearingNews:
https://www.bearing-news.com/koyos-sac-bearings-for-precision-screw-drive-shaft-support/
Avoiding "bearing creep" is an underestimated challenge when designing the proper roller bearing for certain applications. Bearing creep happens when the outer rings moves relative to the housing in which it is mounted. Simply applying a light press fit seems easier than it practically is and may cause other functional problems. Therefore Koyo has been developing more suitable anti-creep solutions which are described in our latest article in BearingNews:
https://www.bearing-news.com/koyos-new-anti-creep-ball-bearings/
On February 5-6 Koyo participated with a representative booth at Ditzinger’s DITEC fair in Braunschweig. This was an excellent opportunity to meet with industry representatives, students and experts and the Ditzinger team focussing on MRO (Maintenance, Repair & Overhaul) requirements for all types of manufacturing industries in Northern Germany and other regions. The cut-open Audi DL382-7Q transmission, which includes several Koyo bearings and a JTEKT/Torsen LSD (Limited Slip Differential) attracted a lot of attention. Любая девушка может снять красивый секс
The price increase for Koyo bearings will be effective as of the 1st of April 2020:
2,9% (flat increase) for all main series
Should you have any question please contact your usual Koyo business representative.
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Un cuscinetto a sfere a contatto obliquo è composto da due anelli con piste a sezione asimmetrica. Poiché un carico radiale tende a separare i due anelli in direzione assiale, essi vengono solitamente utilizzati a coppie. I cuscinetti a contatto obliquo meglio sostengono i carichi radiali ed assiali combinati, avendo scelto l’angolo di contatto più proporzionato al rapporto tra i carichi. Quanto maggiore è l’angolo di contatto (tipicamente tra i 10° ed i 45°) tanto maggiore è il carico assiale sostenibile e minore quello radiale. Nelle applicazioni ad alta velocità di rotazione come turbine, motori jet ed apparecchiature dentali, la forza centrifuga che agisce sulle sfere modifica l’angolo effettivo di contatto con le piste di rotolamento. Materiale ceramico come il nitruro di silicio viene regolarmente utilizzato in queste applicazioni grazie alla sua minor densità (40% rispetto all’acciaio), consentendo di ridurre significativamente la forza centrifuga e di funzionare bene alle alte temperature. I materiali ceramici si usurano inoltre in un modo molto simile all’acciaio – senza le rotture fragili tipiche del vetro o della porcellana. Per maggiori informazioni puoi cliccare su “Prodotti”
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