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NN49/500-S-K-M-SP — 500 × 720 × 167 mm

BOUNDARY DIMENSIONSUNIT / mm
B = 167 mmD = 720 mmd = 500 mm
Boundary dimensions · schematic, not a product photograph or manufacturing drawing.
Cylindrical roller

NN49/500-S-K-M-SP

NN49/500-S-K-M-SP is a cylindrical roller designation documented on BearingIndex from 1 manufacturer publication. The published boundary dimensions are 500 × 720 × 167 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
500 mm
Outside D
720 mm
Width B
167 mm

Compare the 1 publication

What each manufacturer published.

ManufacturerLimiting speed — grease (rpm)Limiting speed — oil (rpm)Reference mass (kg)Source recorded
YJB
NN49/500-S-K-M-SP		100013002142026-09-24Request

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) / 2110 mm
Mean diameter dm(D + d) / 2610 mm
Speed factor dm · nmean diameter × highest published limiting speed793,000 mm·min−1

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

The works that publish NN49/500-S-K-M-SP.

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 NN49/500-S-K-M-SP

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.

Request a quote for NN49/500-S-K-M-SP.

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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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