Industrial replacement referenceSource-backed records · No compatibility guesswork

NSK spherical roller bearing · live catalog page 1

21308EAE4

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

Bore d40 mmOutside diameter D90 mmWidth B23 mmDynamic rating Cr118,000 NNSK product page ↗

Live manufacturer catalog row

Published specifications

NSK Online Catalog
Designation
21308EAE4
Bore d
40 mm
Outside diameter D
90 mm
Width B
23 mm
Minimum corner radius r
1.5 mm
Basic dynamic load rating Cr
118,000 N
Basic static load rating C0r
111,000 N
Thermal speed rating — oil bath
6,700 rpm
Mechanical speed — forced oil
11,000 rpm
Limiting speed — grease
6,000 rpm
Limiting speed — oil
7,500 rpm
Published row text
21308EAE4 | 40 | 90 | 23 | 1.5 | 118000 | 111000 | 6700 | 11000 | 6000 | 7500

Verification boundary

What still needs to match

Do not infer interchange
Internal designConfirm cage, internal design suffix, bore type, clearance, and seals.
Fits and geometryVerify shaft/housing fits, shoulders, fillets, locating method, and mounting arrangement.
DutyCheck radial/axial load, misalignment, lubrication, speed, temperature, contamination, and required life.
Current dataConfirm the exact designation on the linked NSK product page before ordering.

Related NSK bearings

Same bore dimension

5