INCH-POUND
A-A-55598B
20 September 2007
SUPERSEDING
A-A-55598A
25 January 1996
COMMERCIAL ITEM DESCRIPTION
BEARINGS, ROLLER, CYLINDRICAL, SINGLE ROW
OF ROLLERS, TWO ROLLER RETAINING RIBS ON
INNER RING, ONE ROLLER RETAINING RIB ON
OUTER RING, ONE DIRECTION LOCATING
The General Services Administration has authorized the use of this
commercial item description for all federal agencies.
1. SCOPE. This commercial item description (CID) covers the requirements for cylindrical
roller bearings, single row of rollers, two roller retaining ribs on inner ring, one roller retaining
rib on outer ring, one direction locating.
2. CLASSIFICATION. The cylindrical roller bearings shall be classified by the sizes, cage
materials, and precision tolerances listed below:
Size - bearing dimensions (see table I and figure 1)
Cage materials (see table II)
Precision tolerances (see table III)
3. SALIENT CHARACTERISTICS
3.1 Dimensions. The bearings shall be of the dimensions corresponding to the dash number in
table I and the bore, outside diameter, overall width, and shaft housing and fillet radius
corresponding to figure 1 (see 7.3(b)).
Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data
that may improve this document should be sent to: STDZNMGT@dla.mil or Defense Supply
Center Richmond (DSCR), ATTN: DSCR-VEB, 8000 Jefferson Davis Highway, Richmond,
VA 23297-5616.
AMSC N/A
FSC 3110
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