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Composite plummer block housings for SKF Food Line

Composite plummer block housings for SKF Food Line are used in Y-unit series listed in table 1. The units incorporate stainless steel Y-bearings or Y-bearings with zinc-coated rings, either filled with a food-grade grease.
Composite plummer block housings for SKF Food Line are made of a leightweight thermoplastic composite material. They are designed for Y-bearing plummer block units that need to resist a wide range of chemicals and other treatments used during washdown processes of food and beverage applications (table 2).
Composite plummer block housings for SKF Food Line have no relubrication feature as standard and are available in three different designs:
  • SYWK .. Y series (fig. 1)
    → "moulded in" steel coil reinforcement
    → oblong bolt holes, reinforced with austenitic stainless steel inserts
  • SYWK .. L series (fig. 2)
    → massive design
    → oblong bolt holes, reinforced with austenitic stainless steel inserts
  • SYFWK series (short base, (fig. 3)
    → massive design
    → threaded austenitic stainless steel inserts in the support base

End covers

To protect the bearing arrangement at the end of a shaft, and to avoid the possibility of an accident caused by an exposed shaft end, depending on their design composite plummer block housings for SKF Food Line are able to accommodate one of the following end cover designs:

  • SYWK .. Y series
    → ECW end cover (fig. 4)
    The end cover has an optional drainage hole that can be easily opened by the user as required.
  • SYWK .. L and SYFWK .. L series
    → ECL end cover (fig. 5)
End covers are accessories and must be ordered separately. The designations together with the distance A5 that the end cover protrudes from the housing (fig. 6, fig. 7) are listed in the product tables (→ Plummer block housings for Y-bearings, Y-bearing plummer block units).

The complete assortment of end covers for Y-bearing housings and units is listed in the product table.

End covers are made of polypropylene (PP), have good resistance to most chemicals and can withstand operating temperatures up to 100 °C (210 °F). They are mounted by snapping them into the recess of the housing.
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