7306K
Heavier load capacity than 7200. Used in gearboxes, electric motors, and industrial equipment requiring axial load support.
NSKHR30306J30 × 72 × 20.75mm
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$29.19
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Match Details
The specifications and details for why this match is correct.
Specifications
| Bore diameter (d) | 30 mm |
| Outer diameter (D) | 72 mm |
| Width (B) | 20.75 mm |
| Dynamic load rating (C) | 33.7 kN |
| Static load rating (C₀) | 19 kN |
| Weight | 256 g |
| Max speed (grease) | 6,000 rpm |
| Max speed (oil) | 13,000 rpm |
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Cross-References
Every way this part is identified across brands and catalogs.
Tier-1 Brand Equivalents
| Brand | Part Number | Seal | Clearance | Status |
|---|---|---|---|---|
| NSK | HR30306J | Open | CN | Probable |
| Timken | 30306 | Open | CN | Probable |
| SKF | 30306 J2/Q | Open | CN | Probable |
| NTN | 4T-30306 | Open | CN | Probable |
| FAG | 30306-XL | Open | CN | Probable |
Legacy & Proprietary Numbers
GPZ7306AVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeDAG6319810605Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSKODA130-5747Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeGPZ7306KHigh confidence — Schaeffler Brand Interchange · last checked last month · near equivalent
Technical Details & Applications
Specification variations and common equipment types.
Internal Clearance
Normal Clearance (CN)
Standard radial internal clearance. Suitable for most applications under normal operating conditions.
TemperatureUp to ~70°C operating temperature
Seal Type
Open (No Seal)
No seals or shields. Allows external lubrication and cooling. Lowest friction, highest speed capability.
Avoid forDirty, dusty, or wet environments. Applications without planned lubrication maintenance.
Examples
- Machine tool spindles
- Gearboxes with oil bath lubrication
- High-speed precision equipment
Where This Bearing Is Used
Electric motorsPumps and compressorsConveyor rollersAgricultural machineryFans and blowersGearboxesPower transmission equipmentWashing machinesPrinting pressesHVACAutomotive alternators and A/C compressors
Alternative Parts
Options if this exact part isn't what you need.
Same Geometry, Different Configuration
| SKF Part Number | Seal Type | Clearance |
|---|---|---|
| 7306 BEP | Open (No Seal) | CN |
| 7306 BEP C3 | Open (No Seal) | C3 |
| 7306 BE-2RZP | 2RS | CN |
| 7306 BE-2RZP C3 | 2RS | C3 |
Related Bearings
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