NF307W

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

Bore d35 mmOutside diameter D80 mmWidth B21 mmDynamic rating Cr61,000 NNSK product page ↗

Live manufacturer catalog row

Published specifications

NSK online catalog

Designation: NF307W
Bore d: 35 mm
Outside diameter D: 80 mm
Width B: 21 mm
Minimum corner radius r: 1.5 mm
Minimum corner radius r1: 1.1 mm
Fw: Not applicable / not published
Ew: 68.2 mm
Basic dynamic load rating Cr: 61,000 N
Basic static load rating C0r: 47,000 N
Thermal speed rating — oil bath: 9,500 rpm
Mechanical speed — forced oil: Not published
Limiting speed — grease: 6,300 rpm
Limiting speed — oil: 7,500 rpm
Published row text: NF307W | 35 | 80 | 21 | 1.5 | 1.1 | | 68.2 | 61000 | 47000 | 9500 | | 6300 | 7500

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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