6411-C3
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What 6411-C3 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) |
11 |
Bore | Bore code 11 × 5 = 55 mm |
C3 |
Internal clearance | C3: radial internal clearance greater than Normal |
Read from the ISO / ABMA numbering rules and the makers' published suffix conventions. Decode any other number with the bearing number decoder.
6411-C3 specifications
| Specification | Metric | Inch | Basis |
|---|---|---|---|
| Bore (d) | 55 mm | 2.1654 in | ISO table for this designation, confirmed by supplier data |
| Outside diameter (D) | 140 mm | 5.5118 in | Maker's catalogue (PEER Bearing), confirmed by supplier data |
| Width (B) | 33 mm | 1.2992 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 | C3 (greater than Normal) | 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 | 6411 C3 | Brand suffix convention for this ISO size |
| TIMKEN | 6411 C3 | Brand suffix convention for this ISO size |
| FAG | 6411 C3 | Brand suffix convention for this ISO size |
| NSK | 6411 C3 | Brand suffix convention for this ISO size |
| NTN | 6411 C3 | Brand suffix convention for this ISO size |
| KOYO | 6411 C3 | Brand suffix convention for this ISO size |
| NACHI | 6411 C3 | 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
6411-C3 is a deep groove ball bearing, 55 mm bore × 140 mm OD × 33 mm wide (2.1654 × 5.5118 × 1.2992 in). It has no seals or shields (open) and C3 internal clearance. Other makers sell the same size as SKF 6411 C3, TIMKEN 6411 C3, FAG 6411 C3, NSK 6411 C3.
The 6411-C3 is a deep groove ball bearing with a 55 mm bore diameter from the 64 series. It features C3 radial internal clearance, which is greater than normal clearance, making it suitable for applications with thermal expansion or shaft/housing fits that reduce operating clearance.
