NU309-C3
Tier-one manufacturer — brand supplied may vary ✓ Dimensions checked: ISO table and supplier data agreeRegular price
$59.95 USD
Regular price
Sale price
$59.95 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
ClearanceC3
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 NU309-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) |
09 |
Bore | Bore code 09 × 5 = 45 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.
NU309-C3 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 | C3 (greater than Normal) | Stated by the designation | |
| Tolerance class | Normal (ISO P0 / ABEC 1): no tolerance-class code | Stated by the designation | |
NU309-C3 is a cylindrical roller bearing, 45 mm bore × 100 mm OD × 25 mm wide (1.7717 × 3.937 × 0.9843 in). It has C3 internal clearance.
The NU309-C3 is a single row cylindrical roller bearing with a 45mm bore diameter, 100mm outside diameter, and 25mm width. This NU-series design features a separable outer ring and operates with C3 radial clearance, which is greater than normal clearance for accommodating thermal expansion or shaft deflection.
Inner Diameter (ID)
45 mm
Outside Diameter (OD)
100 mm
Width
25 mm
Series
NU3
Bearing Type
Cylindrical roller bearing
