Page 115 - Y-bearing-units

Y-TECH plummer block units Fig. 4

Y-TECH plummer block units have housings made
of composite material. They were developed for
bearing arrangements that must operate reliably
in difficult environments for extended periods
without maintenance.
Y-TECH plummer block units in the SYK series
are fitted with Y-bearings in the YAR 2-2F or
YAR 2-2RF series and are attached to the shaft
with grub screws († fig. 4). These units are
part of the standard SKF product range.
For additional information about Y-TECH
plummer block units for the food industry,
refer to page 274. 3

Y-bearing plummer block
Fig. 5
units with a cast housing
Y-bearing plummer block units with a grey cast
iron housing can be relubricated through a
grease fitting in the housing. This makes them
especially suitable for bearing arrangements
that operate under any of the following
conditions:
• high levels of contamination
• high speeds
• high temperatures
• relatively heavy loads
Four different housing designs are available:

• SY(J) series with two oblong holes for the
attachment bolts in the base of the housing
(† fig. 5) Fig. 6
• SYH series, which is similar to the SY series,
but with a lower centre height
• SYM series, which is similar to the SY series,
but accommodates a larger bearing for a given
shaft size, resulting in a greater load carrying
capacity
• SYF(J) series with a shortened base that con-
tains two threaded holes in the support base
(† fig. 6)

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