Page 969 - Rollingbearings

Designs and variants
NUKR ‥ A design cam PWKR …2RS design
followers cam followers

• are based on double row full complement • are based on double row full complement
cylindrical roller bearings without an inte- cylindrical roller bearings (ig. 9)
gral lange between the two roller sets • have the outer ring axially guided by the
(ig. 8) stud head and pressed-on lange ring via
• have the outer ring axially guided by the the roller sets
stud head and pressed-on lange ring via • are itted on both sides with an NBR con-
the roller sets tact seal, being integral with a sheet metal 16
• have a sheet metal angle ring pressed into angle ring that is pressed into the outer
the outer ring shoulder on both sides, ring shoulder, to press against the lange
forming an effective labyrinth seal ring and the stud head
• have a hexagonal recess at each end of the • have a hexagonal recess at each end of the
stud, enabling the cam follower to be held stud, enabling the cam follower to be held
in place by a hexagonal key (Allen wrench) in place by a hexagonal key (Allen wrench)
during mounting during mounting
• have a relubrication hole for a press-in • have a relubrication hole for a press-in
grease itting or an adapter from a central- grease itting or an adapter from a cen-
ized lubrication system in the centre of tralized lubrication system in the centre of
each hexagonal recess (Accessories, each hexagonal recess (Accessories,
page 968) page 968)
• accommodate relatively heavy axial loads • accommodate relatively heavy axial loads
that can occur because of skew or tilting that can occur because of skew or tilting

Fig. 7 Fig. 8 Fig. 9
KR ‥ PPSKA design NUKR ‥ A design PWKR …2RS design

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