NTN 6306 2RS C4 Ball Bearing 30x72x19 mm

Construction and design

NTN 6306 2RS C4 is a single row deep groove ball bearing engineered for demanding industrial applications requiring increased internal clearance and sealing. Its internal geometry ensures efficient support of radial loads and moderate axial loads in both directions.

The 2RS version features double rubber seals that protect the bearing against dust, moisture and contamination while retaining lubrication. The C4 clearance, larger than C3, allows the bearing to operate under extreme temperature conditions and very high rotational speeds by compensating for significant thermal expansion.

Manufactured from high quality bearing steel with precision ground raceways, NTN 6306 2RS C4 provides stable, quiet and long lasting performance.

Industrial applications

NTN 6306 2RS C4 deep groove ball bearing is widely used in high speed motors, industrial fans, turbines, heavy duty machinery and systems operating in elevated temperature environments.

The bearing size 30x72x19 mm makes it suitable for medium duty industrial applications where durability and thermal resistance are critical.

Technical specifications

Type: deep groove ball bearing
Manufacturer: NTN
Model: 6306 2RS C4
Inner diameter: 30 mm
Outer diameter: 72 mm
Width: 19 mm
Sealing: 2RS double rubber seals
Internal clearance: C4
Design: single row
Material: high quality bearing steel
Lubrication: pre lubricated

Operational advantages

NTN 6306 2RS C4 offers excellent resistance to high temperatures, stable performance at very high speeds and increased tolerance to thermal expansion. The double sealed design protects the bearing while reducing maintenance requirements.

The standardized 30x72x19 bearing dimensions ensure easy installation and compatibility with a wide range of industrial systems.

Dimensional compatibility

The NTN 6306 2RS C4 bearing 30x72x19 mm complies with standard dimensions of the 6306 series and can replace equivalent bearings from manufacturers such as SKF, FAG, NSK or Timken.

Search phrases such as bearing 30x72x19, 6306 2RS C4 bearing or deep groove ball bearing 6306 strengthen its position within the NTN deep groove ball bearing category.

Main description

NTN 6306 2RS C4 is a deep groove ball bearing designed to support radial loads and moderate axial loads in industrial applications requiring increased internal clearance and resistance to extreme operating conditions.

The NTN 6306 2RS C4 30x72x19 mm bearing ensures reliable performance, long service life and stability in high temperature and high speed environments.

FAQ

Where is NTN 6306 2RS C4 bearing used
It is used in turbines, high speed motors and industrial fans.

Is this bearing suitable for extreme conditions
Yes, it is designed for high temperature and high speed applications.

What loads can this bearing support
It supports radial loads and moderate axial loads.

Does this bearing require lubrication
No, it is pre lubricated and sealed.

Can it replace standard 6306 bearings
Yes, especially where increased internal clearance is required.