6312-2RS
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What 6312-2RS 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) |
12 |
Bore | Bore code 12 × 5 = 60 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.
6312-2RS specifications
| Specification | Metric | Inch | Basis |
|---|---|---|---|
| Bore (d) | 60 mm | 2.3622 in | ISO table for this designation, confirmed by supplier data |
| Outside diameter (D) | 130 mm | 5.1181 in | ISO table for this designation, confirmed by supplier data |
| Width (B) | 31 mm | 1.2205 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 | 6312-2RSJ | SKF Master Interchange |
| TIMKEN | 6312 2RS | Brand suffix convention for this ISO size |
| FAG | 6312 2RSR | Brand suffix convention for this ISO size |
| NSK | 6312 DDU | Brand suffix convention for this ISO size |
| NTN | 6312 LLU | Brand suffix convention for this ISO size |
| KOYO | 6312 2RS | Brand suffix convention for this ISO size |
| NACHI | 6312 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
6312-2RS is a deep groove ball bearing, 60 mm bore × 130 mm OD × 31 mm wide (2.3622 × 5.1181 × 1.2205 in). It has rubber contact seals on both sides. Published interchange tables list it as equivalent to SKF 6312-2RSJ.
The 6312-2RS is a deep groove ball bearing with 60mm bore diameter, 130mm outside diameter, and 31mm width. It features contact rubber seals on both sides (2RS) to protect against contaminants and retain lubrication in standard operating environments.
