6228 is a deep groove ball designation documented on BearingIndex from 1 manufacturer publication. The published boundary dimensions are 140 × 250 × 42 mm. The designation ends in bore code 28, which resolves to a 140 mm bore under ISO 15 and matches what the manufacturers published. Every value below comes from that manufacturer’s own published material, with the date it was recorded.
A dash means that manufacturer did not publish the value. Dimensions every source agrees on are shown above rather than repeated per row.
| Figure | How it is obtained | Result |
|---|---|---|
| Radial section height | (D − d) / 2 | 55 mm |
| Mean diameter dm | (D + d) / 2 | 195 mm |
Arithmetic on the figures above — not a bearing life calculation for your load case.
Precision and special bearings
The public product range includes precision and special bearings. Model-level dimensions and supporting technical documents have not yet been added to this directory.
87 designations documented here · 1 reviewed evidence record · source recorded 2026-09-21
Precision class · Internal clearance · Sealing · Material · Cage material · Z class · V class · Application · 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.
| Designation | Bearing family | Works |
|---|---|---|
| H7228-AC-TA-HQ1-P4 | Angular contact | 1 |
| H7228-AC-TA-P4 | Angular contact | 1 |
| H7228-C-TA-HQ1-P4 | Angular contact | 1 |
| H7228-C-TA-P4 | Angular contact | 1 |
Same envelope, but sealing, internal design, clearance and load capability differ — not interchangeable by default.
| Designation | Envelope d × D × B (mm) | Bearing family | Works |
|---|---|---|---|
| 6200 | 10 × 28 × 8 | Deep groove ball | 10 |
| 6200-2RS | 10 × 28 × 8 | Deep groove ball | 1 |
| 6200-2RZ | 10 × 30 × 9 | Deep groove ball | 1 |
| 6200E | 10 × 30 × 9 | Deep groove ball | 1 |
| 6200T1X | 10 × 30 × 9 | Deep groove ball | 1 |
| 6200TB | 10 × 30 × 9 | Deep groove ball | 1 |
| 6200ZZ | 10 × 28 × 8 | Deep groove ball | 2 |
| 6200ZZ/2RS | 10 × 30 × 9 | Deep groove ball | 1 |
| 6201 | 12 × 32 × 10 | Deep groove ball | 9 |
| 6201-2RS | 12 × 32 × 10 | Deep groove ball | 1 |
| 6201-2RZ | 12 × 32 × 10 | Deep groove ball | 1 |
| 6201E | 12 × 32 × 10 | Deep groove ball | 1 |
| 6201T1X | 12 × 32 × 10 | Deep groove ball | 1 |
| 6201TB | 12 × 32 × 10 | Deep groove ball | 1 |
| 6201ZZ | 12 × 32 × 10 | Deep groove ball | 2 |
| 6201ZZ/2RS | 12 × 32 × 10 | Deep groove ball | 1 |
| 6202 | 15 × 35 × 11 | Deep groove ball | 8 |
| 6202-2RZ | 15 × 35 × 11 | Deep groove ball | 1 |
Each envelope shown is that designation’s own published size.
Tick the works you want above, then send one enquiry — each manufacturer answers you separately and cannot see the others.
Figures on this page are each manufacturer’s own published material, recorded on the dates shown. How we check sources →
