NU310-C3
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What NU310-C3 means
| Code | Position | Meaning |
|---|---|---|
NU |
Type | Cylindrical roller bearing, type NU: two flanges on the outer ring, none on the inner ring (inner ring can float axially) |
3 |
Diameter series | Diameter series 3 (medium) |
10 |
Bore | Bore code 10 × 5 = 50 mm |
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.
NU310-C3 specifications
| Specification | Metric | Inch | Basis |
|---|---|---|---|
| Bore (d) | 50 mm | 1.9685 in | ISO table for this designation, confirmed by supplier data |
| Outside diameter (D) | 110 mm | 4.3307 in | ISO table for this designation, confirmed by supplier data |
| Width (B) | 27 mm | 1.063 in | ISO table for this designation, confirmed by supplier data |
| Bearing type | Cylindrical roller bearing | Stated by the designation | |
| Seals / shields | Open (no seals or shields) | 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 | |
NU310-C3 is a cylindrical roller bearing, 50 mm bore × 110 mm OD × 27 mm wide (1.9685 × 4.3307 × 1.063 in). It has C3 internal clearance.
The NU310-C3 is a single-row cylindrical roller bearing with a 50mm bore diameter, 110mm outside diameter, and 27mm width. This NU-type bearing features a non-locating design with one fixed rib on the outer ring and two on the inner ring, allowing axial displacement to accommodate thermal expansion. The C3 designation indicates greater than normal radial internal clearance for applications with temperature differentials or interference fits.
