6408
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What 6408 means
| Code | Position | Meaning |
|---|---|---|
6 |
Type | Deep groove ball bearing |
4 |
Diameter series | Diameter series 4 (heavy): fixes OD and width for the bore (ISO 15) |
08 |
Bore | Bore code 08 × 5 = 40 mm |
Read from the ISO / ABMA numbering rules and the makers' published suffix conventions. Decode any other number with the bearing number decoder.
6408 specifications
| Specification | Metric | Inch | Basis |
|---|---|---|---|
| Bore (d) | 40 mm | 1.5748 in | ISO table for this designation, confirmed by supplier data |
| Outside diameter (D) | 110 mm | 4.3307 in | Maker's catalogue (PEER Bearing), confirmed by supplier data |
| Width (B) | 27 mm | 1.063 in | Maker's catalogue (PEER Bearing), 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 | Normal (CN): no clearance code in the designation | 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 | 6408-J | SKF Master Interchange |
| FAG | 6408 | SKF Master Interchange |
| NACHI | 6408 | SKF Master Interchange |
| TIMKEN | 6408 | Brand suffix convention for this ISO size |
| NSK | 6408 | Brand suffix convention for this ISO size |
| NTN | 6408 | Brand suffix convention for this ISO size |
| KOYO | 6408 | 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
6408 is a deep groove ball bearing, 40 mm bore × 110 mm OD × 27 mm wide (1.5748 × 4.3307 × 1.063 in). It has no seals or shields (open). Published interchange tables list it as equivalent to SKF 6408-J, FAG 6408, NACHI 6408.
The 6408 is a deep groove ball bearing from the 64 series with a 40 mm bore diameter and open enclosure design (no seals or shields). Deep groove ball bearings are versatile, single-row radial bearings suitable for high-speed operation and applications requiring low noise and vibration.
