30228
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What 30228 means
| Code | Position | Meaning |
|---|---|---|
3 |
Type | Tapered roller bearing (metric) |
0 |
Width series | Width series 0 |
2 |
Diameter series | Diameter series 2 (light) |
28 |
Bore | Bore code 28 × 5 = 140 mm |
Read from the ISO / ABMA numbering rules and the makers' published suffix conventions. Decode any other number with the bearing number decoder.
30228 specifications
| Specification | Metric | Inch | Basis |
|---|---|---|---|
| Bore (d) | 140 mm | 5.5118 in | ISO table for this designation, confirmed by supplier data |
| Outside diameter (D) | 250 mm | 9.8425 in | Supplier catalogue listing |
| Width, assembled (T) | 45 mm | 1.7717 in | Supplier catalogue listing |
| Bearing type | Tapered roller bearing (metric, ISO 355) | Stated by the designation | |
| Seals / shields | Open (no seals or shields) | Stated by the designation | |
| Tolerance class | Normal (ISO P0 / ABEC 1): no tolerance-class code | Stated by the designation | |
Equivalent to / interchanges with
| Brand | Part number | Basis |
|---|---|---|
| TIMKEN | 30228M | Timken Interchange Guide |
Equivalents are dimensional and closure-for-closure: same bore, outside diameter, width, seals or shields and internal clearance. Bearing interchange tables
30228 is a tapered roller bearing (metric, ISO 355), 140 mm bore × 250 mm OD × 45 mm wide (5.5118 × 9.8425 × 1.7717 in). Published interchange tables list it as equivalent to TIMKEN 30228M.
The 30228 is a metric tapered roller bearing conforming to ISO 355 standards, with a 140mm bore diameter. This single-row design uses tapered rolling elements between inner and outer race cup and cone assemblies to handle combined radial and axial loads.
