63/28 — 28 × 68 × 19 mm

What each manufacturer published.

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.

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

The works that publish 63/28.

CZ

Ningbo, Zhejiang, China

Miniature motor bearings and inch series

Cixi Lisheng manufactures miniature and small motor bearings under the CZ brand. Its catalogue includes metric 60, 62, 68, 69 and 16000 series, inch R series, stainless steel and nonstandard products. The company identifies brushless motors, power tools, garden tools and drones as applications. Confirm the exact model and operating requirements before specifying.

Published ranges: Metric miniature motor bearings · Inch R-series bearings · Stainless steel bearings · Nonstandard bearing designs

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

Ask CZ about 63/28

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Applications the publishing works state.

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 · Reference mass.

Ask the manufacturer for these when you enquire.

Neighbouring designations documented here.

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