âž” fig on page21 ). âž” fig ). âž” fig on page 21 ).Bearing rings having an interferencefit are generally mounted so that the ring abuts a shoulder on the shaft or in the housing at one side. At the oppos- ite side, inner rings are normally secured by a snap ring, shaft nut or an end plate attached to the shaft end. Outer rings are usually retained by the housing end cover (

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Product information

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Recommendations

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Product data Page ............. 3 Application advice Page ............. 32

Axial location of bearings

âž” fig ), it is necessary to pro-vide oil supply ducts in the journal and grooves in the seating. Recommenda- tions are given in the SKF publication 4100 “SKF Bearing Maintenance Handbook” or CD-ROM “SKF Inter- active Engineering Catalogue”. âž” fig )or to dis-mount bearings from cylindrical seat- ings ( The dimensions of the shaft andhousing shoulders adjacent to the bear- ing must provide sufficient support for the bearing rings, without contact between the rotating parts of the bear- ing and a stationary component. To ensure this, appropriate abutment dimensions are quoted for each indi- vidual bearing listed in the product tables.When using a shaft nut to locate asealed bearing, insert an intermediate ring between the bearing and the lock- ing washer and, probably, to extend the threaded portion of the shaft accordingly (

Design of associatedcomponents

An interference fit alone is generallyinadequate for the axial location of a spherical industrial roller bearing ring. As a rule, some suitable means of axially secur- ing the ring is needed. Both rings of a locating bearing should be axially secured at both sides. For non-locating bearings, on the other hand, it is suffi- cient if the ring having the tighter fit – usually the inner ring – is axially secured; the other ring must be free to move axially with respect to its seating ( For arrangements with large sphericalroller bearings it is often necessaryto make design provisions to enable the bearings to be mounted or dismounted easily. For example, withdrawal tools can be applied to dismount bearings,if appropriate slots are machinedin the shaft and housing shoulders, or if threaded holes are provided in the housing shoulders.If the oil injection method is to beused to mount and dismount bearings on tapered journals (

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1 3 4 5 1 An intermediate ring between the bear-ing and lock washer (of the nut) protectsthe industrial seal Spherical roller bearing of CAK designon a tapered journal with oil supplyducts and grooves Spherical roller bearing of CA design on a cylindrical seating with oil supply ducts and grooves Fig 3 Fig 4 Fig 5 23