NJ218-C3
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What NJ218-C3 means
| Code | Position | Meaning |
|---|---|---|
NJ |
Type | Cylindrical roller bearing, type NJ: two flanges on the outer ring, one on the inner ring (locates in one direction) |
2 |
Diameter series | Diameter series 2 (light) |
18 |
Bore | Bore code 18 × 5 = 90 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.
NJ218-C3 specifications
| Specification | Metric | Inch | Basis |
|---|---|---|---|
| Bore (d) | 90 mm | 3.5433 in | ISO table for this designation, confirmed by supplier data |
| Outside diameter (D) | 160 mm | 6.2992 in | ISO table for this designation, confirmed by supplier data |
| Width (B) | 30 mm | 1.1811 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 | |
NJ218-C3 is a cylindrical roller bearing, 90 mm bore × 160 mm OD × 30 mm wide (3.5433 × 6.2992 × 1.1811 in). It has C3 internal clearance.
The NJ218-C3 is a cylindrical roller bearing with a 90mm bore diameter, 160mm outside diameter, and 30mm width. This single-row bearing features the NJ design with two integral flanges on the outer ring and one flange on the inner ring, allowing for radial load support with limited axial guidance in one direction. The C3 radial clearance provides greater internal clearance than standard, accommodating thermal expansion and misalignment.
