NJ306ET2 C3
Medium cross-section cylindrical roller bearings (NJ-type) with one-direction axial restraint. Higher load capacity than NJ200 series. Same dimensions as NU300 but with semi-locating capability.
FAGNJ306-E-TVP2-C3
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Specifications
| Bore diameter (d) | 30 mm |
| Outer diameter (D) | 72 mm |
| Width (B) | 19 mm |
| Dynamic load rating (C) | 53 kN |
| Static load rating (C₀) | 50 kN |
| Weight | 398 g |
| Max speed (grease) | 7,500 rpm |
| Max speed (oil) | 11,000 rpm |
Why This Match Is Correct
✓Exact dimensional match (bore, OD, width)
✓Load ratings within tolerance
✓Seal type verified via manufacturer tables
✓Speed rating compatible
Equivalents Across Brands
| Brand | Part Number | Seal | Clearance | Status |
|---|---|---|---|---|
| FAG | NJ306-E-TVP2-C3 | Open | C3 | Verified |
| NSK | NJ306W C3 | Open | C3 | Verified |
| NTN | NJ306ET2 C3 | Open | C3 | Current |
| SKF | NJ 306 ECP/C3 | Open | C3 | Verified |
| Timken | NJ306EM/C3 | Open | C3 | Verified |
Seal Type
Open (No Seal)
No seals or shields. Allows external lubrication and cooling. Lowest friction, highest speed capability.
Best forClean environments with external lubrication systems. High-speed applications where heat dissipation matters.
Avoid forDirty, dusty, or wet environments. Applications without planned lubrication maintenance.
Examples
- Machine tool spindles
- Gearboxes with oil bath lubrication
- High-speed precision equipment
Internal Clearance
Greater Than Normal (C3)
Increased radial internal clearance. Required when bearings operate at elevated temperatures or with tight shaft fits.
Best forHigh-temperature applications. Tight interference fits. Electric motors with frequent starts/stops.
Temperature70-150°C operating temperature
Where This Bearing Is Used
Cylindrical Roller — Medium Series (NJ) — Common Applications
- Large electric motors (drive end)
- Heavy-duty gearboxes
- Compressor crankshafts
- Rail traction motors
- Marine propulsion
- Crusher equipment
- Steel mill equipment
RailMarineMiningSteel
Medium-Small (30mm bore) — Typical Uses
- General-purpose electric motors (1-10 HP)
- Pumps and compressors
- Automotive alternators and A/C compressors
- Conveyor rollers
- Agricultural machinery
- Washing machines
- Industrial fans
- Printing presses
Other Variants Available
Same bearing geometry — different seal and clearance configurations.
| SKF Part Number | Seal Type | Clearance |
|---|---|---|
| NJ 306 ECP | Open (No Seal) | CN |
| NJ 306 ECP/C3 | Open (No Seal) | C3 |