THE BEARINGINDEX DIRECTORY

W693 — 3 × 8 × 4 mm

BOUNDARY DIMENSIONSUNIT / mm

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

Deep groove ball

W693

W693 is a deep groove ball designation documented on BearingIndex from 1 manufacturer publication. The published boundary dimensions are 3 × 8 × 4 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: 3 mm
Outside D: 8 mm
Width B: 4 mm

Compare the 1 publication

What each manufacturer published.

Manufacturer	Source recorded
CZ W693	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	2.5 mm
Mean diameter d_m	(D + d) / 2	5.5 mm

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

The works that publish W693.

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 W693

Applications the publishing works state.

Application	Stated by
Brushless motors	CZ
Drones	CZ
Garden tools	CZ
Power tools	CZ

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.

Other designations with the same 3x8x4 mm envelope.

Designation	Bearing family	Works
693	Deep groove ball	1

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

Request a quote for W693.

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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