6312-2RS-C3
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What 6312-2RS-C3 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 |
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.
6312-2RS-C3 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 | 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 | 6312 2RSH C3 | Brand suffix convention for this ISO size |
| TIMKEN | 6312 2RS C3 | Brand suffix convention for this ISO size |
| FAG | 6312 2RSR C3 | Brand suffix convention for this ISO size |
| NSK | 6312 DDU C3 | Brand suffix convention for this ISO size |
| NTN | 6312 LLU C3 | Brand suffix convention for this ISO size |
| KOYO | 6312 2RS C3 | Brand suffix convention for this ISO size |
| NACHI | 6312 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
6312-2RS-C3 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 and C3 internal clearance. Other makers sell the same size as SKF 6312 2RSH C3, TIMKEN 6312 2RS C3, FAG 6312 2RSR C3, NSK 6312 DDU C3.
The 6312-2RS-C3 is a deep groove ball bearing with 60mm bore diameter, 130mm outside diameter, and 31mm width. It features contact rubber seals on both sides for protection against contamination and retention of lubrication. The C3 radial clearance provides greater internal clearance than standard, accommodating thermal expansion in applications with temperature variations or interference fits.
