6403
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What 6403 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) |
03 |
Bore | Bore code 03 = 17 mm (codes 00, 01, 02 and 03 are fixed at 10, 12, 15 and 17 mm) |
Read from the ISO / ABMA numbering rules and the makers' published suffix conventions. Decode any other number with the bearing number decoder.
6403 specifications
| Specification | Metric | Inch | Basis |
|---|---|---|---|
| Bore (d) | 17 mm | 0.6693 in | ISO table for this designation, confirmed by supplier data |
| Outside diameter (D) | 62 mm | 2.4409 in | Maker's catalogue (PEER Bearing), confirmed by supplier data |
| Width (B) | 17 mm | 0.6693 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 | 6403-J | SKF Master Interchange |
| TIMKEN | 6403 | Brand suffix convention for this ISO size |
| FAG | 6403 | Brand suffix convention for this ISO size |
| NSK | 6403 | Brand suffix convention for this ISO size |
| NTN | 6403 | Brand suffix convention for this ISO size |
| KOYO | 6403 | Brand suffix convention for this ISO size |
| NACHI | 6403 | 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
6403 is a deep groove ball bearing, 17 mm bore × 62 mm OD × 17 mm wide (0.6693 × 2.4409 × 0.6693 in). It has no seals or shields (open). Published interchange tables list it as equivalent to SKF 6403-J.
The 6403 is a deep groove ball bearing with a 17 mm bore diameter from the 64 series. This open bearing design has no seals or shields, allowing for high-speed operation and easy lubrication maintenance in controlled environments.
