6906 — 30 × 47 × 9 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.

Where the sources agree.

Where the figures differ, use the drawing from the manufacturer you buy from.

Calculated from the published values.

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

The works that publish 6906.

NBK

Ningbo, Zhejiang, China

Deep groove ball bearings and custom variants

Ningbo Chuang Hon Yi manufactures deep groove ball bearings under the NBK brand. Its published company history connects the Ningbo plant with its Taiwan business, while the product scope describes bore sizes from 3–50 mm and customer-specific nonstandard designs. Exact size availability and configuration should be checked for the intended order.

Published ranges: Deep groove ball bearings · Customer-specific nonstandard bearings

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

Ask NBK about 6906

Add to inquiry

RCL

Ningbo, Zhejiang, China

Thin-wall ball bearings for compact mechanisms

Ningbo Shilong manufactures high-precision bearings under the RCL name. Its published catalogue includes 67, 68, 69 and 60 series, with an emphasis on thin-wall bearings for compact mechanisms. Application pages identify encoders, motors, robots, bicycles and circular looms. Space envelope and rotational requirements are useful starting points for a technical inquiry.

Published ranges: 67- and 68-series thin-wall bearings · 69-series ball bearings · 60-series ball bearings

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

Ask RCL about 6906

Add to inquiry

SFH

Shanghai, China

Miniature and thin-section ball bearings

Shanghai Hengan manufactures miniature bearings under the SFH brand, with a factory in Wuxi and technical and inspection functions in Shanghai. Its catalogue covers metric, inch and flanged deep groove bearings, thin-section designs, double-row angular contact bearings and thrust bearings. Special nonstandard designs are also listed.

Published ranges: Metric and inch miniature deep groove bearings · Flanged miniature bearings · Thin-section ball bearings · Double-row angular contact and thrust bearings

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

Ask SFH about 6906

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Sihai

Ningbo, Zhejiang, China

Deep groove bearings for motors and automotive use

Cixi Sihai develops and manufactures deep groove ball bearings. Its published scope gives a bore range of 6–35 mm and lists 6000, 6200, 6300, 6800 and 6900 series. Applications include vehicles, appliances, power tools, instruments and office equipment. Automotive engine-related references should be matched to the exact assembly.

Published ranges: 6000, 6200 and 6300 series · 6800 and 6900 series · Automotive engine-bearing applications

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

Ask Sihai about 6906

Add to inquiry

Yuyao Global

Ningbo, Zhejiang, China

Miniature and small bearings

Yuyao Global manufactures miniature and small bearings. Its published product organization includes rubber-sealed and metal-shielded designs, with applications in appliances, automotive systems, communications equipment and medical devices. The company describes manufacturing and inspection operations in Yuyao; closure type and lubrication should be agreed for the operating environment.

Published ranges: Miniature and small bearings · Rubber-sealed bearing designs · Metal-shielded bearing designs

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

Ask Yuyao Global about 6906

Add to inquiry

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 · 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.

Other designations with the same 30x47x9 mm envelope.

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

Neighbouring designations documented here.

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