Page 84 - Y-bearing-units

Y-bearings

Y-bearings with grub screws Fig. 7

Y-bearings with grub screws in the inner ring
are locked in position on the shaft by tightening
the two cup point hexagonal grub screws, pos-
itioned 120° apart. These bearings are suitable
for applications where the direction of rotation is
constant or alternating. Two different standard
designs are available.
Y-bearings in the YAT 2 series have an
extended inner ring on one side, and are sealed
with the rugged standard integral seal
(† fig. 7). The outer ring has two lubrication
holes as standard.
Y-bearings in the YAR 2 series have an
extended inner ring on both sides († fig. 8).
This reduces the extent to which the inner ring
can tilt on the shaft, which enables the bearing
to run more smoothly. These bearings are fitted Fig. 8
with the rugged standard integral seal and one
of the following flinger options:
• plain sheet steel flingers, designation suffix 2F
• rubberized sheet steel flingers (multiple seal),
designation suffix 2RF
The outer ring has two lubrication holes as
standard.
Bearings without lubrication holes can be
supplied on request. They are identified by the
suffix W.

Bearings made of rolling bearing steel
Y-bearings in the YAT 2 and YAR 2 standard
series are manufactured from high-grade car-
bon chromium steel. The SKF range comprises
bearings for metric shafts from 12 to 100 mm
and inch shafts from 1 /2 to 3 inch († product
table on pages 92 to 97).

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