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You are here: Home / FAQs / What is an adapter bearing (Y-bearings)?

What is an adapter bearing (Y-bearings)?

January 21, 2019 By Mike Santora

SKF-Y-Bearing-ImageAdapter bearings are used in ball bearing units which consist of a precision wide inner ring bearing assembled into a housing made of cast iron, pressed steel, or rubber. The precision wide inner ring bearings are called y-bearings because their typical locking mechanism, two grub screws 120° apart. The induced direction from this locking forms a Y. Ball bearing units are supplied pre-lubricated and are designed to slip fit onto the shaft. The locking method is either eccentric self-locking or set-screw locking.

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Filed Under: Ball Bearings, Bearing Basics, FAQs Tagged With: SKF

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