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NNU4814-K-W33 — 90 × 125 × 35 mm

BOUNDARY DIMENSIONSUNIT / mm
B = 35 mmD = 125 mmd = 90 mm
Boundary dimensions · schematic, not a product photograph or manufacturing drawing.
Cylindrical roller

NNU4814-K-W33

NNU4814-K-W33 is a cylindrical roller designation documented on BearingIndex from 1 manufacturer publication. The published boundary dimensions are 90 × 125 × 35 mm. The publishing works are in Zhejiang province, China. Every value below comes from that manufacturer’s own published material, with the date it was recorded.

Bore d
90 mm
Outside D
125 mm
Width B
35 mm

Compare the 1 publication

What each manufacturer published.

ManufacturerLimiting speed — grease (rpm)Limiting speed — oil (rpm)Reference mass (kg)Source recorded
YJB
NNU4814-K-W33		600070001.262026-09-24Request

A dash means that manufacturer did not publish the value. Dimensions every source agrees on are shown above rather than repeated per row.

Calculated from the published values.

FigureHow it is obtainedResult
Radial section height(D − d) / 217.5 mm
Mean diameter dm(D + d) / 2107.5 mm
Speed factor dm · nmean diameter × highest published limiting speed752,500 mm·min−1

Arithmetic on the figures above — not a bearing life calculation for your load case.

The works that publish NNU4814-K-W33.

YJB

Hangzhou, Zhejiang, China

Precision spindle and machine-tool bearings

Hangzhou Yijia manufactures precision bearings within the Huaxing group. Its published range includes angular contact ball bearings, cylindrical roller bearings, double-direction thrust angular contact bearings and tapered roller designs. The company describes controlled grinding and assembly environments and applications in machine-tool spindles, medical equipment, instrument motors and robots.

Published ranges: Angular contact ball bearings · Cylindrical roller bearings · Double-direction thrust angular contact bearings · Tapered roller and nonstandard designs

740 designations documented here · 1 reviewed evidence record · source recorded 2026-09-24

Ask YJB about NNU4814-K-W33

Applications the publishing works state.

ApplicationStated by
Instrument motorsYJB
Machine-tool spindlesYJB
Medical equipmentYJB
RoboticsYJB

Application areas each manufacturer states for its own range. Confirm load, speed, temperature and lubrication for your case.

Not documented by any source here.

Precision class · Internal clearance · Sealing · Material · Cage material · Z class · V class · Dynamic load rating · Static load rating · Limiting speed · Lubrication · Operating temperature · Precision standard · Ring material · Rolling element material · Noise / vibration test method · Manufacturer series · Manufacturer suffix · Ball count · Ball diameter.

Ask the manufacturer for these when you enquire.

Other designations with the same 90x125x35 mm envelope.

DesignationBearing familyWorks
NA4918Needle roller1
NNC4918CVCylindrical roller1

Same envelope, but sealing, internal design, clearance and load capability differ — not interchangeable by default.

Request a quote for NNU4814-K-W33.

Tick the works you want above, then send one enquiry — each manufacturer answers you separately and cannot see the others.

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Figures on this page are each manufacturer’s own published material, recorded on the dates shown. How we check sources →

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