21311EAE4

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

Bore d55 mmOutside diameter D120 mmWidth B29 mmDynamic rating Cr178,000 NNSK product page ↗

Live manufacturer catalog row

Published specifications

NSK Online Catalog

Designation: 21311EAE4
Bore d: 55 mm
Outside diameter D: 120 mm
Width B: 29 mm
Minimum corner radius r: 2 mm
Basic dynamic load rating Cr: 178,000 N
Basic static load rating C0r: 174,000 N
Thermal speed rating — oil bath: 5,300 rpm
Mechanical speed — forced oil: 8,000 rpm
Limiting speed — grease: 4,500 rpm
Limiting speed — oil: 5,600 rpm
Published row text: 21311EAE4 | 55 | 120 | 29 | 2 | 178000 | 174000 | 5300 | 8000 | 4500 | 5600

Verification boundary

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