NJ309-C4
Tier-one manufacturer — brand supplied may vary ✓ Dimensions checked: ISO table and supplier data agreeRegular price
$92.95 USD
Regular price
Sale price
$92.95 USD
Unit price
per
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Bore45 mm
1.7717 in
Outside dia.100 mm
3.937 in
Width25 mm
0.9843 in
TypeCylindrical roller bearing
SealingOpen
ClearanceC4
Ships separately from our European warehouse — shipping from $79, quoted at checkout
Ships from our European partner stock — allow 5–8 business days
Ships from our European partner stock — allow 5–8 business days
Image is for illustration purposes only.
What NJ309-C4 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) |
3 |
Diameter series | Diameter series 3 (medium) |
09 |
Bore | Bore code 09 × 5 = 45 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.
NJ309-C4 specifications
| Specification | Metric | Inch | Basis |
|---|---|---|---|
| Bore (d) | 45 mm | 1.7717 in | ISO table for this designation, confirmed by supplier data |
| Outside diameter (D) | 100 mm | 3.937 in | ISO table for this designation, confirmed by supplier data |
| Width (B) | 25 mm | 0.9843 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 | |
NJ309-C4 is a cylindrical roller bearing, 45 mm bore × 100 mm OD × 25 mm wide (1.7717 × 3.937 × 0.9843 in). It has C4 internal clearance.
The NJ309-C4 is a single row cylindrical roller bearing with a 45mm bore diameter, 100mm outside diameter, and 25mm width. This bearing features a C4 radial internal clearance, which is greater than standard C3 clearance and allows for thermal expansion or interference fit applications.
Inner Diameter (ID)
45 mm
Outside Diameter (OD)
100 mm
Width
25 mm
Series
NJ3
Bearing Type
Cylindrical roller bearing
