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6303T1X — 17 × 47 × 14 mm

BOUNDARY DIMENSIONSUNIT / mm
B = 14 mmD = 47 mmd = 17 mm
Boundary dimensions · schematic, not a product photograph or manufacturing drawing.
Deep groove ball

6303T1X

6303T1X is a deep groove ball designation documented on BearingIndex from 1 manufacturer publication. The published boundary dimensions are 17 × 47 × 14 mm. The designation ends in bore code 03, which resolves to a 17 mm bore under ISO 15 and matches what the manufacturers published. 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
17 mm
Outside D
47 mm
Width B
14 mm

Compare the 1 publication

What each manufacturer published.

ManufacturerDynamic load rating (kN)Static load rating (kN)Source recorded
YJB
6303T1X		13.66.652026-09-24Request

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) / 215 mm
Mean diameter dm(D + d) / 232 mm
C / C₀ load ratiodynamic ÷ static load ratingYJB 2.05

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

The works that publish 6303T1X.

YJB

Hangzhou, Zhejiang, China

Precision spindle and machine-tool bearings

Hangzhou Yijia manufactures precision bearings within the Huaxing group. Its published range includes angular contact ball bearings, cylindrical roller bearings, double-direction thrust angular contact bearings and tapered roller designs. The company describes controlled grinding and assembly environments and applications in machine-tool spindles, medical equipment, instrument motors and robots.

Published ranges: Angular contact ball bearings · Cylindrical roller bearings · Double-direction thrust angular contact bearings · Tapered roller and nonstandard designs

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

Ask YJB about 6303T1X

Applications the publishing works state.

ApplicationStated by
Instrument motorsYJB
Machine-tool spindlesYJB
Medical equipmentYJB
RoboticsYJB

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 · 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 17x47x14 mm envelope.

DesignationBearing familyWorks
30303Tapered roller1
30303DTapered roller1
6303Deep groove ball4
6303-2RZDeep groove ball1
6303EDeep groove ball1
6303ZZ/2RSDeep groove ball1
S6303ZZ/2RSDeep groove ball1

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
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 6303T1X.

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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