Industrial replacement referenceSource-backed records · No compatibility guesswork

JTEKT/Koyo deep groove ball bearing · Non-contact sealed

6706 2RU

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

Bore d30 mmOutside diameter D37 mmWidth B4 mmDynamic rating Cr1.45 kNKoyo calculation tool ↗

Live manufacturer specification row

Published specifications

JTEKT/Koyo
Designation
6706 2RU
Classification
Non-contact sealed
Bore d
30 mm
Outside diameter D
37 mm
Width B
4 mm
Minimum corner radius r
0.2 mm
Basic dynamic load rating Cr
1.45 kN
Basic static load rating C0r
0.95 kN
Fatigue load limit Cu
0.04 kN
Factor f0
15.7
Published row text
6706 2RU | 30 | 37 | 4 | 0.2 | 1.45 | 0.95 | 0.04 | 15.7

Verification boundary

What still needs to match

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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