Page 604 - SKF-bearing-housings

Housings for paper machines SBFN, SBPN and SDM series

Additional housing support Fig. 10
When radial loads act at angles between
30° and 120° on SDM and SBPN housings
or between 90° and 270° on SBFN housings,
a stop should be provided to counter the load.
The stop should be sufficiently strong to
accommodate the loads acting parallel to the
support surface († fig. 10).

Operating temperature
The housing material does not set any tem-
perature limits, except for very low tempera-
ture applications where impact strength could
be a factor. For additional information, contact
the application engineering service.
The housing paint is heat resistant up to
80 °C (175 °F) material temperature or 100 °C
(210 °F) ambient temperature. Alternative
paints that can accommodate higher tempera-
tures are available on request († Housing
variants, page 594).

Operating speed
The permissible operating speed of the incor-
porated bearing is not limited by the housing
or the seal.

Shaft specifications
The bearing seat on the shaft should comply
with the tolerances required by the bearing
(† SKF handbook Rolling bearings in paper
machines), which is typically to IT9 tolerance
grade. A cylindricity tolerance of IT5/2 and a
conicity tolerance of IT7/2 are recommended.

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