Page 904 - Rollingbearings

12 Needle roller thrust bearings

Loads

Minimum load F = 0,0005 C Symbols
0
am
For additional C 0 basic static load rating [kN] (product
information tables, page 906)
† page 106 F a axial load [kN]
F am minimum axial load [kN]
Equivalent P = F a P equivalent dynamic bearing load [kN]
dynamic bearing P 0 equivalent static bearing load [kN]
load

For additional
information
† page 91

Equivalent static P = F a
0
bearing load

For additional
information
† page 105

Temperature Cages Permissible speed
Steel cages can be used at the same operat-
limits ing temperatures as the bearing washers
and rollers. For temperature limits of poly- The speed ratings in the product tables,
mer cages, refer to Polymer cages, page 906 indicate:
The permissible operating temperature for page 188.
needle roller thrust bearings can be limited • the reference speed, which enables a
by: Lubricants quick assessment of the speed capabilities
from a thermal frame of reference
• the dimensional stability of the bearing For temperature limits of SKF greases, refer • the limiting speed, which is a mechanical
washers and rollers to Selecting a suitable SKF grease, page 116. limit that should not be exceeded unless
• the cage When using lubricants not supplied by the bearing design and the application are
• the lubricant SKF, temperature limits should be evaluated adapted for higher speeds
according to the SKF trafic light concept
Where temperatures outside the permissible (page 117). For additional information, refer to Operating
range are expected, contact SKF temperature and speed, page 130.
12
Bearing washers and rollers
The bearings are heat stabilized up to at
least 120 °C (250 °F).

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