6211-C4
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What 6211-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) |
11 |
Bore | Bore code 11 × 5 = 55 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.
6211-C4 specifications
| Specification | Metric | Inch | Basis |
|---|---|---|---|
| Bore (d) | 55 mm | 2.1654 in | ISO table for this designation, confirmed by supplier data |
| Outside diameter (D) | 100 mm | 3.937 in | ISO table for this designation, confirmed by supplier data |
| Width (B) | 21 mm | 0.8268 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 | 6211 C4 | Brand suffix convention for this ISO size |
| TIMKEN | 6211 C4 | Brand suffix convention for this ISO size |
| FAG | 6211 C4 | Brand suffix convention for this ISO size |
| NSK | 6211 C4 | Brand suffix convention for this ISO size |
| NTN | 6211 C4 | Brand suffix convention for this ISO size |
| KOYO | 6211 C4 | Brand suffix convention for this ISO size |
| NACHI | 6211 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
6211-C4 is a deep groove ball bearing, 55 mm bore × 100 mm OD × 21 mm wide (2.1654 × 3.937 × 0.8268 in). It has no seals or shields (open) and C4 internal clearance. Other makers sell the same size as SKF 6211 C4, TIMKEN 6211 C4, FAG 6211 C4, NSK 6211 C4.
The 6211-C4 is a deep groove ball bearing with a 55mm bore diameter, 100mm outside diameter, and 21mm width. It features C4 internal radial clearance, which is greater than standard C3 clearance, allowing for greater thermal expansion and shaft deflection in operating conditions.
