Page 1036 - Rollingbearings

20 INSOCOAT bearings
Loads Temperature Permissible speed

limits
For recommendations about minimum load, The speed ratings in the product tables
axial load carrying capacity and equivalent (INSOCOAT deep groove ball bearings,
bearing loads, refer to Loads The permissible operating temperature for page 1036, and INSOCOAT cylindrical roller
of the relevant standard bearing: INSOCOAT bearings can be limited by: bearings, page 1038) indicate:

• deep groove ball bearings, page 254 • the dimensional stability of the bearing • the reference speed, which enables a
• cylindrical roller bearings, page 509 rings and rolling elements quick assessment of the speed capabilities
• the cage from a thermal frame of reference
The required INSOCOAT bearing speciic • the lubricant • the limiting speed, which is a mechanical
values and factors are listed in the relevant limit that should not be exceeded unless
product tables: Where temperatures outside the permissible the bearing design and the application are
range are expected, contact SKF. adapted for higher speeds
• INSOCOAT deep groove ball bearings,
page 1036 Bearing rings and rolling For additional information, refer to Operating
– basic static load rating C 0 elements temperature and speed, page 129.
– calculation factors f and k r SKF recommends oil lubrication for bear-
0
• INSOCOAT cylindrical roller bearings, SKF INSOCOAT bearings are heat stabilized ings with a ring centred cage (designation
page 1038 up to at least 150 °C (300 °F). sufix ML). When these bearings are grease
– calculation factor k r lubricated, the nd value is limited to
m
– reference speed Cages ≤ 250 000 mm/min.
Steel or brass cages can be used at the same where
operating temperatures as the bearing rings d = bearing mean diameter [mm]
m
and rolling elements. For temperature limits = 0,5 (d + D)
of PA66 cages, refer to Polymer cages, n = rotational speed [r/min]
page 188.

20 Lubricants

For temperature limits of SKF greases, refer
to Selecting a suitable SKF grease, page 116.
When using lubricants not supplied by
SKF, temperature limits should be evaluated
according to the SKF trafic light concept
(page 117).

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