6018-C4
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What 6018-C4 means
| Code | Position | Meaning |
|---|---|---|
6 |
Type | Deep groove ball bearing |
0 |
Diameter series | Diameter series 0 (extra light): fixes OD and width for the bore (ISO 15) |
18 |
Bore | Bore code 18 × 5 = 90 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.
6018-C4 specifications
| Specification | Metric | Inch | Basis |
|---|---|---|---|
| Bore (d) | 90 mm | 3.5433 in | ISO table for this designation, confirmed by supplier data |
| Outside diameter (D) | 140 mm | 5.5118 in | ISO table for this designation, confirmed by supplier data |
| Width (B) | 24 mm | 0.9449 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 | 6018 C4 | Brand suffix convention for this ISO size |
| TIMKEN | 6018 C4 | Brand suffix convention for this ISO size |
| FAG | 6018 C4 | Brand suffix convention for this ISO size |
| NSK | 6018 C4 | Brand suffix convention for this ISO size |
| NTN | 6018 C4 | Brand suffix convention for this ISO size |
| KOYO | 6018 C4 | Brand suffix convention for this ISO size |
| NACHI | 6018 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
6018-C4 is a deep groove ball bearing, 90 mm bore × 140 mm OD × 24 mm wide (3.5433 × 5.5118 × 0.9449 in). It has no seals or shields (open) and C4 internal clearance. Other makers sell the same size as SKF 6018 C4, TIMKEN 6018 C4, FAG 6018 C4, NSK 6018 C4.
The 6018-C4 is a deep groove ball bearing with a 90mm bore diameter, 140mm outside diameter, and 24mm width. The C4 designation indicates a radial internal clearance greater than C3, providing additional clearance for applications involving thermal expansion or shaft/housing fits requiring extra play.
