Industrial replacement referenceSource-backed records · No compatibility guesswork

NSK single-row cylindrical roller bearing · live catalog page 1

N305W

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

Bore d25 mmOutside diameter D62 mmWidth B17 mmDynamic rating Cr36,000 NNSK product page ↗

Live manufacturer catalog row

Published specifications

NSK online catalog
Designation
N305W
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
Not applicable / not published
Ew
53 mm
Basic dynamic load rating Cr
36,000 N
Basic static load rating C0r
25,200 N
Thermal speed rating — oil bath
12,000 rpm
Mechanical speed — forced oil
Not published
Limiting speed — grease
8,000 rpm
Limiting speed — oil
10,000 rpm
Published row text
N305W | 25 | 62 | 17 | 1.1 | 1.1 | | 53 | 36000 | 25200 | 12000 | | 8000 | 10000

Verification boundary

What still needs to match

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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