Page 602 - SKF-bearing-housings

Housings for paper machines SBFN, SBPN and SDM series

Design considerations Fig. 9

For general information about design consid-
erations, refer to the following sections:

• Typical shaft-bearing combinations
(† page 41)
• Locating/non-locating bearing arrangements
(† page 40)
• Housing support surface († page 45)
For additional information about rolling bear-
ings, refer to the product information available
online at skf.com/bearings. For information
about paper machine applications, refer to
the SKF handbook Rolling bearings in paper
machines.

Typical shaft-bearing combinations
Housings for paper machines can accommo-
date stepped shafts with a bearing on a
tapered seat († fig. 9):
Load carrying capacity
Locating and non-locating bearing For information about breaking loads for SBFN
positions housings, contact SKF for more information.
Housings for paper machines are available for SBPN and SDM housings are intended for
both the locating and non-locating bearing loads acting perpendicular toward the support
positions: surface.
Guideline values for the permissible loads
• Housings with the designation suffix F are for SDM housings, based on cap bolt strength,
designed to accommodate spherical roller are provided in table 3. Housings for paper
bearings in the locating bearing position on machines should always be supported over
the drive side. the entire base. Perpendicular loads toward
• Housings with the designation suffix RA are the support surface are limited only by the
designed for CARB toroidal roller bearings bearing.
in the non-locating bearing position on the
front side.

SKF recommends using a spherical roller
bearing on the drive side and a CARB toroidal
roller bearing on the front side († The SKF
self-aligning bearing system, page 41). How-
ever, other housing/bearing combinations are
also available († table 2).
The extent to which a CARB toroidal roller
bearing can accommodate axial displacement
due to interference with the seal can be calcu-
lated. For assistance, contact the SKF applica-
tion engineering service

598