6218-2RS-C3
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What 6218-2RS-C3 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) |
18 |
Bore | Bore code 18 × 5 = 90 mm |
2RS |
Closure | Contact rubber seals, both sides |
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.
6218-2RS-C3 specifications
| Specification | Metric | Inch | Basis |
|---|---|---|---|
| Bore (d) | 90 mm | 3.5433 in | ISO table for this designation, confirmed by supplier data |
| Outside diameter (D) | 160 mm | 6.2992 in | ISO table for this designation, confirmed by supplier data |
| Width (B) | 30 mm | 1.1811 in | ISO table for this designation, confirmed by supplier data |
| Bearing type | Deep groove ball bearing | Stated by the designation | |
| Seals / shields | Contact rubber seals, both sides | 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 | 6218 2RSH C3 | Brand suffix convention for this ISO size |
| TIMKEN | 6218 2RS C3 | Brand suffix convention for this ISO size |
| FAG | 6218 2RSR C3 | Brand suffix convention for this ISO size |
| NSK | 6218 DDU C3 | Brand suffix convention for this ISO size |
| NTN | 6218 LLU C3 | Brand suffix convention for this ISO size |
| KOYO | 6218 2RS C3 | Brand suffix convention for this ISO size |
| NACHI | 6218 2NSE 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
6218-2RS-C3 is a deep groove ball bearing, 90 mm bore × 160 mm OD × 30 mm wide (3.5433 × 6.2992 × 1.1811 in). It has rubber contact seals on both sides and C3 internal clearance. Other makers sell the same size as SKF 6218 2RSH C3, TIMKEN 6218 2RS C3, FAG 6218 2RSR C3, NSK 6218 DDU C3.
The 6218-2RS-C3 is a deep groove ball bearing with 90mm bore diameter, 160mm outside diameter, and 30mm width. It features contact rubber seals on both sides to protect against contamination while retaining lubrication. The C3 radial clearance provides greater internal clearance than standard, accommodating thermal expansion and misalignment.
