Page 499 - Rollingbearings

Designs and variants
NP design bearings
Reasons to design angle rings into a bearing
arrangement include: • have two integral langes on the inner ring
and one integral lange and one non-
• no NJ or NUP design locating bearings in integral lange, i e a loose lange ring, on
the product range the outer ring
• to provide an extend inner ring seat for • are used to locate the shaft axially in both
heavily loaded bearings in the locating directions
position:
– full width inner ring seat of NJ design
bearings with an HJ angle ring com- Other variants
pared to NUP design bearings having a
shorter inner ring and a loose lange Bearings without an inner or
• to simplify design or mounting procedures outer ring

• are available based on:
Other designs – NU design bearings without an inner
ring (RNU series, ig. 10)
For the assortment of other design bearings ○ enable the shaft diameter to be larger
(ig. 9), visit skf com/go/17000-6-1 to provide a stronger, stiffer shaft
○ provide inside diameter F tolerance
w
NUB design bearings limits to be within F6� when the
rollers are in contact with the outer
• have two integral langes on the outer ring ring raceway
and no langes on the inner ring that is ○ are listed online for certain sizes 6
extended on both sides (skf com/go/17000-6-6)
• can accommodate axial displacement of – N design bearings without an outer ring
the shaft relative to the housing in both (RN series, ig. 11)
directions • can accommodate axial displacement of
the shaft relative to the housing, limited by
NJP design bearings the width of the raceway:
– on the shaft for RNU bearings Fig. 10
• have two integral langes on the outer ring – in the housing for RN bearings Bearing without inner ring, RNU
and one non-integral lange, i e a loose • are typically used in applications where
lange ring, on the inner ring hardened and ground raceways can be
• are used to locate the shaft axially in one machined on the shaft or in the housing
direction (Raceways on shafts and in housings,
page 179)
NF design bearings
• have two integral langes on the inner ring
and one integral lange on the outer ring
• are used to locate the shaft axially in one
direction

Fig. 9 Fig. 11
Other designs Bearing without outer ring, RN

NUB NJP NF NP

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