NJ305EW

Manufacturer-published dimensions, load ratings, thermal speed rating, and limiting speeds.

Bore d25 mmOutside diameter D62 mmWidth B17 mmDynamic rating Cr51,000 NNSK product page ↗

Live manufacturer catalog row

Published specifications

NSK online catalog

Designation: NJ305EW
Bore d: 25 mm
Outside diameter D: 62 mm
Width B: 17 mm
Minimum corner radius r: 1.1 mm
Minimum corner radius r1: 1.1 mm
Fw: 34 mm
Ew: Not applicable / not published
Basic dynamic load rating Cr: 51,000 N
Basic static load rating C0r: 37,500 N
Thermal speed rating — oil bath: 11,000 rpm
Mechanical speed — forced oil: 18,000 rpm
Limiting speed — grease: 10,000 rpm
Limiting speed — oil: 12,000 rpm
Published row text: NJ305EW | 25 | 62 | 17 | 1.1 | 1.1 | 34 | | 51000 | 37500 | 11000 | 18000 | 10000 | 12000

Verification boundary

Do not infer interchange

Bearing designConfirm N/NU/NJ/NUP/NF flange arrangement and exact suffixes.

Fit and clearanceVerify shaft/housing tolerances, internal clearance, shoulders, fillets, and mounting method.

DutyCheck speed, lubrication, temperature, radial/axial load handling, contamination, and required life.

Current product dataConfirm the exact designation on the linked NSK product page before ordering.

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