Stainless steel plummer block housings
Stainless steel plummer block housings are used in ball bearing unit series listed in table 1. The units incorporate stainless steel insert bearings filled with a food-grade grease.
The housings cannot be ordered as separate products.
Stainless steel plummer block housings are made of cast austenitic stainless steel (AISI 300 series). They are designed for ball bearing plummer block units in heavy-duty applications to resist a wide range of chemicals and other treatments used during washdown processes of food and beverage applications (table 2
). Compared to composite housings for SKF Food Line, stainless steel housings offers an even higher level of resistance to aggressive washdown chemicals. Stainless steel plummer block ball bearing units are particularly well-suited for applications with high speeds, heavy loads and where reliability and minimal maintenance are key factors.
Stainless steel plummer block housings have a plugged threaded hole to accommodate a relubrication feature, when relubrication is required. They are available with three different designs:
SYWR .. Y series (fig. 1)
→ cast oblong bolt holes
SYFWR .. Y series (short base, fig. 2)
→ threaded holes in the support base
SYFWR .. YZ series
→ similar to SYFWR .. Y series, but with inch threaded holes in the support base
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, stainless steel ball bearing plummer block units are able to accommodate ECW series end covers (fig. 3
). 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. 4
) are listed in the product table
The complete assortment of end covers for ball bearing 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.