6228-C4
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What 6228-C4 means
| Code | Position | Meaning |
|---|---|---|
6 |
Type | Deep groove ball bearing |
2 |
Diameter series | Diameter series 2 (light): fixes OD and width for the bore (ISO 15) |
28 |
Bore | Bore code 28 × 5 = 140 mm |
C4 |
Internal clearance | C4: radial internal clearance greater than C3 |
Read from the ISO / ABMA numbering rules and the makers' published suffix conventions. Decode any other number with the bearing number decoder.
6228-C4 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 | ISO table for this designation, confirmed by supplier data |
| Width (B) | 42 mm | 1.6535 in | ISO table for this designation, confirmed by supplier data |
| Bearing type | Deep groove ball bearing | Stated by the designation | |
| Seals / shields | Open (no seals or shields) | Stated by the designation | |
| Internal clearance | C4 (greater than C3) | 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 |
|---|---|---|
| SKF | 6228 C4 | Brand suffix convention for this ISO size |
| TIMKEN | 6228 C4 | Brand suffix convention for this ISO size |
| FAG | 6228 C4 | Brand suffix convention for this ISO size |
| NSK | 6228 C4 | Brand suffix convention for this ISO size |
| NTN | 6228 C4 | Brand suffix convention for this ISO size |
| KOYO | 6228 C4 | Brand suffix convention for this ISO size |
| NACHI | 6228 C4 | Brand suffix convention for this ISO size |
Equivalents are dimensional and closure-for-closure: same bore, outside diameter, width, seals or shields and internal clearance. Bearing interchange tables
6228-C4 is a deep groove ball bearing, 140 mm bore × 250 mm OD × 42 mm wide (5.5118 × 9.8425 × 1.6535 in). It has no seals or shields (open) and C4 internal clearance. Other makers sell the same size as SKF 6228 C4, TIMKEN 6228 C4, FAG 6228 C4, NSK 6228 C4.
The 6228-C4 is a deep groove ball bearing with a 140mm bore diameter, 250mm outside diameter, and 42mm width. It features C4 radial internal clearance, which is greater than C3 and provides increased clearance for applications involving thermal expansion or shaft deflection.
