NU216-C4
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What NU216-C4 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) |
2 |
Diameter series | Diameter series 2 (light) |
16 |
Bore | Bore code 16 × 5 = 80 mm |
C4 |
Internal clearance | C4: radial internal clearance greater than C3 |
Read from the ISO / ABMA numbering rules and the makers' published suffix conventions. Decode any other number with the bearing number decoder.
NU216-C4 specifications
| Specification | Metric | Inch | Basis |
|---|---|---|---|
| Bore (d) | 80 mm | 3.1496 in | ISO table for this designation, confirmed by supplier data |
| Outside diameter (D) | 140 mm | 5.5118 in | ISO table for this designation, confirmed by supplier data |
| Width (B) | 26 mm | 1.0236 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 | C4 (greater than C3) | Stated by the designation | |
| Tolerance class | Normal (ISO P0 / ABEC 1): no tolerance-class code | Stated by the designation | |
NU216-C4 is a cylindrical roller bearing, 80 mm bore × 140 mm OD × 26 mm wide (3.1496 × 5.5118 × 1.0236 in). It has C4 internal clearance.
The NU216-C4 is a single-row cylindrical roller bearing with dimensions of 80mm bore, 140mm outside diameter, and 26mm width. This bearing features the NU design with no flanges on the inner ring, allowing axial displacement of the shaft relative to the housing. The C4 radial clearance provides greater internal clearance than standard, suitable for applications with thermal expansion or misalignment.
