Page 500 - Rollingbearings

6 Cylindrical roller bearings
Bearings with a tapered bore High-capacity SKF high-capacity cylindrical roller bearings
• are available with a 1:12 tapered bore cylindrical roller are available in three different main designs
(designation sufix K, ig. 12) and some variants
• have radial internal clearance greater than bearings
corresponding bearings with a cylindrical
bore SKF high-capacity cylindrical roller bearings
(ig. 15) are designed for applications such
Bearings with a snap ring groove as industrial gearboxes, wind turbine gear-
in the outer ring boxes and mining equipment
The cage bars are displaced relative to the
• are identiied by the designation sufix N roller pitch diameter to enable the rollers to
(ig. 13) be placed closer to each other, creating room
• can be axially located in the housing by a for additional rollers (ig. 16) and thereby
snap ring: increasing load carrying capacity and radial
– to save space stiffness
– to reduce mounting time The black oxide coating of rings and roll-
ers (designation sufix L4B) contributes to
Bearings with locating slots in the extended service life by improving:
outer ring
• smearing damage resistance
• are available with one or two locating slots • running-in properties and reducing
(designation sufix N1 or N2, ig. 14) friction
The two locating slots are positioned • performance under poor lubrication
6 180° apart conditions
• can be used to prevent the outer ring from • chemical resistance (from agressive oil
turning where it must be mounted with a additives)
loose it • corrosion resistance

Fig. 12 Fig. 14 Fig. 15
Bearing with a tapered bore Bearing with locating slot(s) High-capacity bearing

Fig. 13 Fig. 16
Bearing with a snap ring groove Roller distances

Roller distance of a High-capacity bearing Separable high- High-capacity bear-
standard bearing with with inner ring centred capacity bearing with ing with outer ring
cage (cage not shown) cage inner ring raceway centred cage
centred cage

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