6318-2RS
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What 6318-2RS means
| Code | Position | Meaning |
|---|---|---|
6 |
Type | Deep groove ball bearing |
3 |
Diameter series | Diameter series 3 (medium): fixes OD and width for the bore (ISO 15) |
18 |
Bore | Bore code 18 × 5 = 90 mm |
2RS |
Closure | Contact rubber seals, both sides |
Read from the ISO / ABMA numbering rules and the makers' published suffix conventions. Decode any other number with the bearing number decoder.
6318-2RS specifications
| Specification | Metric | Inch | Basis |
|---|---|---|---|
| Bore (d) | 90 mm | 3.5433 in | ISO table for this designation, confirmed by supplier data |
| Outside diameter (D) | 190 mm | 7.4803 in | ISO table for this designation, confirmed by supplier data |
| Width (B) | 43 mm | 1.6929 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 | 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 | 6318 2RSH | Brand suffix convention for this ISO size |
| TIMKEN | 6318 2RS | Brand suffix convention for this ISO size |
| FAG | 6318 2RSR | Brand suffix convention for this ISO size |
| NSK | 6318 DDU | Brand suffix convention for this ISO size |
| NTN | 6318 LLU | Brand suffix convention for this ISO size |
| KOYO | 6318 2RS | Brand suffix convention for this ISO size |
| NACHI | 6318 2NSE | 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
6318-2RS is a deep groove ball bearing, 90 mm bore × 190 mm OD × 43 mm wide (3.5433 × 7.4803 × 1.6929 in). It has rubber contact seals on both sides. Other makers sell the same size as SKF 6318 2RSH, TIMKEN 6318 2RS, FAG 6318 2RSR, NSK 6318 DDU.
The 6318-2RS is a deep groove ball bearing with a 90mm bore diameter, 190mm outside diameter, and 43mm width. It features contact rubber seals on both sides (2RS designation) to retain lubrication and protect against contaminants in moderately dirty environments.
