6703 ZZ

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

Bore d17 mmOutside diameter D23 mmWidth B4 mmDynamic rating Cr1.25 kNKoyo calculation tool ↗

Live manufacturer specification row

Published specifications

JTEKT/Koyo

Designation: 6703 ZZ
Classification: Shielded ZZ
Bore d: 17 mm
Outside diameter D: 23 mm
Width B: 4 mm
Minimum corner radius r: 0.2 mm
Basic dynamic load rating Cr: 1.25 kN
Basic static load rating C0r: 0.66 kN
Fatigue load limit Cu: 0.027 kN
Factor f0: 16.9
Published row text: 6703 ZZ | 17 | 23 | 4 | 0.2 | 1.25 | 0.66 | 0.027 | 16.9

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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