Page 18 - Y-bearing-units

Designs

Conventional SKF ball bearing units are referred Fig. 1
to as Y-bearing units. These units consist of:

• an insert bearing (a single row deep groove
ball bearing) with a convex sphered outside
diameter
• a housing, which has a correspondingly
sphered but concave bore
Y-bearing units can accommodate moderate
initial misalignment, but normally do not permit
axial displacement. They are ready-to-mount,
ready-to-use units († fig. 1) and available as:
• Y-bearing plummer block units
• Flanged Y-bearing units
• Y-bearing take-up units

The housings are available in: Fig. 2
• composite material († fig. 2)
• grey cast iron († fig. 3)
• sheet steel († fig. 4)
SKF Y-bearing units provide designers with con-
siderable freedom of choice so that comprom-
ises can be avoided. Numerous standard series
Y-bearing units are available († tables on pages
20 to 23). The tables list Y-bearings and Y-bearing
housings and their possible combin ations to
units. For information about more specialized
Y-bearing units, refer to the sections, SKF Con-
Centra ball bearings and units and SKF Food Line
Y-bearing units starting on page 247.

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