Page 674 - SKF-bearing-housings

Metric roller bearing units SYNT and FYNT series (SKF ConCentra)

Design considerations directions occur, or if the bearing unit is not
supported over its entire base, be sure that
For general information about system design, the magnitude of the load is permissible for
refer to the following sections: the housing and the attachment bolts. If heavy
loads, not acting perpendicularly toward the
• Typical shaft-bearing combinations support surface, are expected, additional sup-
(† page 41) ports are recommended to relieve the attach-
• Locating/non-locating bearing arrangements ment bolts of the load.
(† page 40)
• Load carrying capacity († page 44) Breaking loads and safety factors
• Specifications for shafts and housing support Guideline values for the breaking loads of
surfaces († page 45) housings in the SYNT series are listed in
table 3. Guideline values for the breaking
loads of housings in the FYNT series are listed
Bearing life in table 4, page 672. To obtain the permis-
For information about the SKF rating life, sible load for a housing, the appropriate
minimum load and static safety for bearings in breaking load should be divided by a factor
SKF ConCentra roller bearing units, refer to based on the safety requirements. In general
the product information available online at engineering, a safety factor of 6 is typical (†
skf.com/bearings. The bearing designations Load carrying capacity, page 44).
and load carrying capacities are provided in
the product tables, starting on page 686.

Typical shaft-bearing combinations
SKF ConCentra roller bearing units accommo-
date bearings on an SKF ConCentra stepped
sleeve (with inclined serrations) on plain
shafts.

Locating and non-locating bearing
positions
SKF ConCentra roller bearing units can be
used for both the locating and non-locating
bearing positions. Bearing units for the non-
locating bearing position have a wide bearing Fig. 8
seat to accommodate 2,5 mm of axial dis-
placement, in either direction, from the cen-
tral position († fig. 8). Units for the non- 2,5 mm 2,5 mm
locating bearing position are identified by the
designation suffix L.
Bearing units for the locating bearing pos-
ition are identified by the designation suffix F.

Load carrying capacity
SKF ConCentra roller bearing units are
intended for loads acting perpendicularly
toward the support surface. If the bearing unit
is supported over its entire base and the loads
are purely perpendicular, loads are limited
only by the bearing. If loads acting in other

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