Page 1027 - Rollingbearings

Bearing data
Designs and Solid Oil variants Bearing data

variants • Standard variant (designation sufix W64,
table 1): Dimension standards, tolerances,
– contains a high-quality synthetic oil
The SKF standard assortment of bearings – meets the needs of most applications internal clearance
and bearing units with Solid Oil (ig. 1) • Food-grade variant (designation sufix
includes: W64F, table 1): Refer to Bearing data in the relevant product
– contains an oil registered by NSF as section of the standard bearing.
• Deep groove ball bearings category H1
• Spherical roller bearings – meets the needs of food applications
• Insert bearings and ball bearing units
• Tapered roller bearings
• Cylindrical roller bearings
• Self-aligning ball bearings Sealed bearings

On request, SKF can supply other bearing • with integral contact seals are strongly
types with Solid Oil to meet the needs of a recommended in wet environments
particular application, except for CARB tor- • with Solid Oil increase the sealing effect-
oidal roller bearings which are unsuitable for iveness, as the Solid Oil supports the seals
use with Solid Oil Bearings itted with a axially, preventing them from delecting
large-volume c age are not suitable for Solid and opening under pressure
Oil because there is too little free space
inside the bearing. For information about sealing options, con-
tact the SKF application engineering service.
Where carbon steel bearings are exposed 19
to wet environments, additional external
seals are recommended to protect the bear-
ing’s external surfaces from corrosion.

Table 1
Technical speciications for bearings and bearing units with Solid Oil
Characteristic Standard Food-grade
variant variant

Designation sufix W64 W64F
Base oil viscosity
at 40 °C (105 °F) 150 mm 2 /s 220 mm 2 /s
at 100 °C (210 °F) 20 mm 2 /s 25 mm 2 /s
Fig. 1
NSF H1 food grade no yes
Bearings and bearing units with Solid Oil Operating temperature
Minimum start-up temperature –50 °C (–60 °F) –25 °C (–15 °F)
Maximum continuous 85 °C (185 °F) 85 °C (185 °F)
Maximum intermittent 95 °C (205 °F) 95 °C (205 °F)
Relubrication-free yes yes
Polymer colour blue white

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