Page 598 - Rollingbearings

7 Needle roller bearings
Needle roller bearings with Cages
machined rings
Cages for needle roller bearings
SKF needle roller bearings are itted with
• with langes and D ≥ 19 mm one of the cage designs shown in table 4 Cages for radial bearings
(F, F ≥ 12 mm) have an annular groove When used at high temperatures, some
w
and, depending on the bearing size, one or lubricants can have a detrimental effect on
more lubrication holes in the outer ring polyamide cages For additional information
(ig. 17, page 587) about the suitability of cages, refer to Cages,
• with seal(s) have an additional lubrication page 187
hole in the inner ring (ig. 39, page 595)
• double row and without langes have an Double row needle roller bearings
annular groove with one lubrication hole
in the outer ring (ig. 20, page 587) Double row needle roller and cage assem-
• without langes and with an inner ring blies have a double row cage in the same
have one lubrication hole in the inner ring design as a single row cage (ig. 4,
for certain sizes (product table, page 583)
page 636) Other double row needle roller bearings
are itted with two cage assemblies (ig. 11,
Combined needle roller bearings page 585, and ig. 18, page 587) Cage type Window-type
The needle roller bearing used in combined Material Sheet steel or
machined steel
bearings has an annular groove with one
lubrication hole in the outer ring
Needle roller / full complement thrust ball Sufix –
bearings in the NX series without the desig-
nation sufix Z have a cover with lubrication
holes over the thrust part of the bearing
(ig. 28, page 591) Most often they are oil
7 lubricated and, therefore, SKF supplies these
bearings without grease
Bearing types
Needle roller and Standard
cage assemblies

Drawn cup needle –
roller bearings

Needle roller bear- –
ings with
machined rings

Alignment needle –
roller bearings

Needle roller / –
angular contact
ball bearings

Needle roller / –
thrust ball
bearings

Needle roller / –
cylindrical roller
thrust bearings

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