NF306M

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

Bore d30 mmOutside diameter D72 mmWidth B19 mmDynamic rating Cr50,500 NNSK product page ↗

Live manufacturer catalog row

Published specifications

NSK online catalog

Designation: NF306M
Bore d: 30 mm
Outside diameter D: 72 mm
Width B: 19 mm
Minimum corner radius r: 1.1 mm
Minimum corner radius r1: 1.1 mm
Fw: Not applicable / not published
Ew: 62 mm
Basic dynamic load rating Cr: 50,500 N
Basic static load rating C0r: 38,500 N
Thermal speed rating — oil bath: 10,000 rpm
Mechanical speed — forced oil: Not published
Limiting speed — grease: 8,500 rpm
Limiting speed — oil: 11,000 rpm
Published row text: NF306M | 30 | 72 | 19 | 1.1 | 1.1 | | 62 | 50500 | 38500 | 10000 | | 8500 | 11000

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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