Caterpillar Part reference

0058639bearing-aligning; (self aligning)

Catalog entry 0058639 is listed in Caterpillar's catalog as a bearing-aligning (self aligning) part. Two catalog occurrences associate it with cylinder group-hydraulic assemblies in the hydraulic system for the Caterpillar AP-1000B. These occurrences are catalog associations only; confirm the recorded conditions before ordering.

Recorded applications

Models and catalog references

Selected catalog references that list this part. A catalog association does not confirm fitment for every machine or configuration.

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Catalog context

Where this part appears

  1. ModelCaterpillar AP-1000B
  2. Grouphydraulic system
  3. Subgroupcylinder group-hydraulic
  4. Unit115-5207 cylinder gp-hydraulic s/n 7hn1-305; 8gn1-573 76.20mm (3in) bore x 444.5mm (17.5in) stroke part of 121-1268 lines gp-screed elevation
Reduced catalog diagram for Caterpillar AP-1000B Locked
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Parts in this preview

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Part numberDescription
0058639bearing-aligning; (self aligning) (current part)
07***69fitting, grease
08***25ring; (backup)
08***23seal

Selected entries from this catalog unit. Other part numbers are masked. Confirm the full breakdown and your machine configuration before ordering.

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General guidance

Component knowledge

Understanding this component

In general, a self-aligning bearing is designed to tolerate small angular misalignment between the shaft and its housing, which helps reduce binding and uneven loading in pivoting joints. In hydraulic cylinder assemblies, this type of bearing is typically used where the cylinder must pivot or articulate as it moves a load.

What to check before ordering

Use part number 0058639 as the reference for this entry. Before ordering, check the recorded catalog occurrences against your machine's serial number and configuration, since the catalog association does not establish compatibility for every configuration.