Industrial replacement referenceSource-backed records · No compatibility guesswork

NSK single-row deep groove ball bearing · live catalog page 5

6306NR

Manufacturer-published boundary dimensions, basic load ratings, and limiting speeds.

Bore d30 mmOutside diameter D72 mmWidth B19 mmDynamic rating Cr29,300 NNSK product page ↗

Live manufacturer catalog row

Published specifications

NSK online catalog
Designation
6306NR
Bore d
30 mm
Outside diameter D
72 mm
Width B
19 mm
Minimum corner radius r
1.1 mm
Basic dynamic load rating Cr
29,300 N
Basic static load rating C0r
15,000 N
Limiting speed — grease
11,000 rpm
Limiting speed — oil
13,000 rpm
Published row text
6306NR | 30 | 72 | 19 | 1.1 | 29300 | 15000 | 11000 | 13000

Verification boundary

What still needs to match

Do not infer interchange
Exact suffixConfirm seals/shields, internal clearance, cage, precision class, and material for the complete designation.
FitVerify shaft/housing tolerances, shoulders, fillets, and mounting method.
DutyCheck speed, temperature, lubrication, contamination, load direction, and required bearing life.
Current product dataConfirm the exact designation on the linked NSK product page before ordering.

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