6305 ZZ

Manufacturer-published boundary dimensions, basic load ratings, fatigue limit, and f0 factor.

Bore d25 mmOutside diameter D62 mmWidth B17 mmDynamic rating Cr25.7 kNKoyo calculation tool ↗

Live manufacturer specification row

Published specifications

JTEKT/Koyo

Designation: 6305 ZZ
Classification: Shielded ZZ
Bore d: 25 mm
Outside diameter D: 62 mm
Width B: 17 mm
Minimum corner radius r: 1.1 mm
Basic dynamic load rating Cr: 25.7 kN
Basic static load rating C0r: 11.3 kN
Fatigue load limit Cu: 0.86 kN
Factor f0: 13.2
Published row text: 6305 ZZ | 25 | 62 | 17 | 1.1 | 25.7 | 11.3 | 0.86 | 13.2

Verification boundary

Do not infer interchange

Designation and sealingConfirm the complete bearing number and exact shield/seal construction.

Fit and geometryVerify shaft/housing fits, shoulders, fillets, internal clearance, and installation constraints.

DutyCheck speed, temperature, lubrication, contamination, load direction, and required life.

Current manufacturer dataUse the linked JTEKT/Koyo calculation tool and current catalog before ordering.

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