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6321-2RZ — 105 × 225 × 49 mm

BOUNDARY DIMENSIONSUNIT / mm
B = 49 mmD = 225 mmd = 105 mm
Boundary dimensions · schematic, not a product photograph or manufacturing drawing.
Deep groove ball

6321-2RZ

6321-2RZ is a deep groove ball designation documented on BearingIndex from 1 manufacturer publication. The published boundary dimensions are 105 × 225 × 49 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
105 mm
Outside D
225 mm
Width B
49 mm

Compare the 1 publication

What each manufacturer published.

ManufacturerDynamic load rating (kN)Limiting speed (rpm)Minimum corner radius (mm)Ball count (pcs)Ball diameter (mm)Reference mass (kg)Source recorded
CGJF
6321-2RZ		141.328003838.18.052026-09-24Request

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) / 260 mm
Mean diameter dm(D + d) / 2165 mm
Speed factor dm · nmean diameter × highest published limiting speed462,000 mm·min−1

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

The works that publish 6321-2RZ.

CGJF

Taizhou, Zhejiang, China

Low-noise ball and tapered roller bearings

Jinfa Bearing manufactures sealed deep groove ball bearings and tapered roller bearings in Wenling, Zhejiang. Its CGJF range addresses motor, machine-tool, automotive and water-pump requirements. The company describes separate grinding, heat-treatment and assembly operations, with product development covering motor-bearing noise and sealing.

Published ranges: Sealed deep groove ball bearings · Tapered roller bearings · Motor and water-pump bearing applications

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

Ask CGJF about 6321-2RZ

Applications the publishing works state.

ApplicationStated by
Automotive systemsCGJF
Electric motorsCGJF
Machine toolsCGJF
Water pumpsCGJF

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 · Static load rating · Lubrication · Operating temperature · Precision standard · Ring material · Rolling element material · Limiting speed — grease · Limiting speed — oil · Noise / vibration test method · Manufacturer series · Manufacturer suffix.

Ask the manufacturer for these when you enquire.

Neighbouring designations documented here.

DesignationEnvelope d × D × B (mm)Bearing familyWorks
630010 × 35 × 11Deep groove ball7
6300-2RS10 × 35 × 11Deep groove ball1
6300-2RZ10 × 35 × 11Deep groove ball1
6300E10 × 35 × 11Deep groove ball1
6300ZZ10 × 35 × 11Deep groove ball1
6300ZZ/2RS10 × 35 × 11Deep groove ball1
630112 × 37 × 12Deep groove ball5
6301-2RZ12 × 37 × 12Deep groove ball1
6301E12 × 37 × 12Deep groove ball1
6301T1X12 × 37 × 12Deep groove ball1
6301ZZ/2RS12 × 37 × 12Deep groove ball1
630215 × 42 × 13Deep groove ball5
6302-2RZ15 × 42 × 13Deep groove ball1
6302E15 × 42 × 13Deep groove ball1
6302T1X15 × 42 × 13Deep groove ball1
6302ZZ/2RS15 × 42 × 13Deep groove ball1
630317 × 47 × 14Deep groove ball5
6303-2RZ17 × 47 × 14Deep groove ball1

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

Request a quote for 6321-2RZ.

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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