Page 671 - Rollingbearings

Designs and variants
Designs and Pinion bearings Fig. 6
• are designed for pinion shafts in the dif- Single row tapered roller bearing
variants ferentials of automotive transmissions to
provide a constant, accurate gear mesh
• have very narrow geometrical tolerances
Single row tapered and high preload capability

roller bearings • have special friction characteristics and
can be axially adjusted within narrow
limits using the friction-torque method
SKF single row tapered roller bearings • have an internal design that supports the
(ig. 6) are available in many designs and formation of a hydrodynamic lubricant ilm
variants and in many series and sizes, to substantially reduce friction, and conse-
including: quently the operating temperature, during
the running-in period
• basic design bearings • retain their preload setting when
• application-speciic bearings mounted, lubricated and maintained Fig. 7
• bearings with a langed outer ring properly Separately packed components
• SKF Explorer bearings (page 675) • are identiied by the designation sufix
CL7C

Basic design bearings Low-friction bearings

• have a design and internal geometry that • are designed to meet the ever-increasing
provide long service life demands to reduce friction and energy
• have crowned raceway proiles and an use
optimized surface inish of the inner ring • optimize a reduction in friction through
guide lange that enables them to run their internal geometry, number of rollers,
cooler and consume less lubricant than surface inish and redesign of their cage
conventional design bearings • have a frictional moment that is at least
• have load rating values that are in accord- 30% lower when compared with a same-
ance with ISO and even above (product sized SKF standard bearing
tables, page 762) • normally do not need a running-in proced-
• offer a cost-effective solution for standard ure because their optimized contact pro- 8
industrial applications iles provide optimum load distribution
and they experience only a small, con-
On request, SKF can also supply any inner trolled loss of initial preload
ring with roller and cage assembly (cone) or • generate less frictional heat and therefore
any outer ring (cup) separately (ig. 7) enable extended lubrication intervals or
operation at higher speeds
• have a roller and cage assembly with a
Application-speciic bearings lower mass and therefore reduced inertial
forces in the bearing, which reduce the risk
For applications where the bearings are sub- of skidding and smearing
jected to unique operating conditions, SKF • are typically used in automotive and
manufactures customized single row industrial transmissions
tapered roller bearings on request To meet
the needs of these particular applications,
SKF manufactures, for example, pinion or
low-friction bearings with the following
features:

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