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MR62ZZ — 2 × 6 × 2.5 mm

BOUNDARY DIMENSIONSUNIT / mm
B = 2.5 mmD = 6 mmd = 2 mm
Boundary dimensions · schematic, not a product photograph or manufacturing drawing.
Ball bearings

MR62ZZ

MR62ZZ is a ball bearings designation documented on BearingIndex from 2 independent manufacturer publications. The published boundary dimensions are 2 × 6 × 2.5 mm. The publishing works are in Zhejiang, Fujian provinces, China. Every value below comes from that manufacturer’s own published material, with the date it was recorded.

Bore d
2 mm
Outside D
6 mm
Width B
2.5 mm

Recorded designations for this model: MR62ZZ · MR62zz.

Compare the 2 publications

What each manufacturer published.

ManufacturerReference mass (kg)Source recorded
Runstar
MR62ZZ
0.000332026-09-24Request
Hongchi
MR62zz
—2026-09-24Request

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) / 22 mm
Mean diameter dm(D + d) / 24 mm

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

The works that publish MR62ZZ.

Hongchi

Ningbo, Zhejiang, China

Miniature metric, inch and thrust bearings

Ningbo Hongchi manufactures miniature bearings with a published bore range of 1–40 mm. Its product scope includes metric and inch miniature bearings, flanged bearings and flat thrust ball bearings. The company lists miniature motors, cooling fans, drones, instruments and medical equipment among its applications; exact material and closure options should be confirmed per model.

Published ranges: Metric and inch miniature bearings · Flanged miniature bearings · Flat thrust ball bearings

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

Ask Hongchi about MR62zz

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 MR62ZZ

Applications the publishing works state.

ApplicationStated by
Cooling fansHongchi
DronesHongchi
Fishing tackleRunstar
Medical equipmentRunstar
Miniature motorsHongchi
Precision instrumentsHongchi, Runstar
Small motorsRunstar

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.

Other designations with the same 2x6x2.5 mm envelope.

DesignationBearing familyWorks
620 MR62Ball bearings1
MR62-2RSBall bearings1

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

Neighbouring designations documented here.

DesignationEnvelope d × D × B (mm)Bearing familyWorks
MR62-2RS2 × 6 × 2.5Ball bearings1

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

Request a quote for MR62ZZ.

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

Open your enquiry How sourcing works here →

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