THE BEARINGINDEX DIRECTORY

R1810-2RS — 7.9375 × 12.7 × 3.9688 mm

BOUNDARY DIMENSIONSUNIT / mm

Boundary dimensions · schematic, not a product photograph or manufacturing drawing.

Thrust

R1810-2RS

R1810-2RS is a thrust designation documented on BearingIndex from 1 manufacturer publication. The published boundary dimensions are 7.9375 × 12.7 × 3.9688 mm. The publishing works are in Fujian province, China. Every value below comes from that manufacturer’s own published material, with the date it was recorded.

Bore d: 7.9375 mm
Outside D: 12.7 mm
Width B: 3.9688 mm

Compare the 1 publication

What each manufacturer published.

Manufacturer	Reference mass (kg)	Source recorded
Runstar R1810-2RS	0.00157	2026-09-24	Request

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.

Figure	How it is obtained	Result
Radial section height	(D − d) / 2	2.38 mm
Mean diameter d_m	(D + d) / 2	10.32 mm

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

The works that publish R1810-2RS.

Runstar

Zhangzhou, Fujian, China

Miniature ball and thrust bearings

Zhangzhou Runshida manufactures miniature and small deep groove ball bearings and flat thrust ball bearings under the Runstar name. Its published company scope gives a bore range of 1–50 mm and includes nonstandard development. Applications span instruments, small motors, appliances, medical equipment and fishing tackle; dimensions and closures still require model-specific confirmation.

Published ranges: Miniature deep groove ball bearings · Small deep groove ball bearings · Flat thrust ball bearings · Nonstandard miniature designs

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

Ask Runstar about R1810-2RS

Applications the publishing works state.

Application	Stated by
Fishing tackle	Runstar
Medical equipment	Runstar
Precision instruments	Runstar
Small motors	Runstar

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 · Limiting speed — grease · Limiting speed — oil · Noise / vibration test method · Manufacturer series · Manufacturer suffix · Ball count · Ball diameter.

Ask the manufacturer for these when you enquire.

Neighbouring designations documented here.

Designation	Envelope d × D × B (mm)	Bearing family	Works
R1810zz	7.938 × 12.7 × 3.967	Deep groove ball	1
R1810ZZ/2RS	7.938 × 12.7 × 3.969	Deep groove ball	1
R188-2RS	6.35 × 12.7 × 4.7625	Ball bearings	1
R188 T	6.35 × 12.7 × 4.7625	Ball bearings	1
R188TZZ	6.35 × 12.7 × 4.7625	Ball bearings	1
R188 U	6.35 × 12.7 × 4.7625	Ball bearings	1
R188UZZ	6.35 × 12.7 × 4.7625	Ball bearings	1
R188V	6.35 × 12.7 × 4.7625	Ball bearings	1
R188VZZ	6.35 × 12.7 × 4.7625	Ball bearings	1
R188ZZ	6.35 × 12.7 × 4.7625	Ball bearings	1
R188ZZ/2RS	6.35 × 12.7 × 3.175	Deep groove ball	1

Each envelope shown is that designation’s own published size.

Request a quote for R1810-2RS.

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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