KOYO 6306 2RS NR C3 Ball Bearing 30x72x19 mm

Construction and design

KOYO 6306 2RS NR C3 is a single row deep groove ball bearing designed for industrial applications requiring secure axial positioning, sealing and increased internal clearance. Its geometry allows efficient handling of radial loads and moderate axial loads in both directions.

The 2RS version features double rubber seals that protect the bearing from dust, moisture and contaminants while retaining lubrication. The integrated NR snap ring groove with retaining ring enables quick and precise axial mounting in housings.

The C3 internal clearance allows the bearing to operate at higher speeds and temperatures by compensating for thermal expansion, making it suitable for demanding operating conditions.

Manufactured from high quality bearing steel with precision ground raceways, KOYO 6306 2RS NR C3 ensures stable, quiet and long lasting operation.

Industrial applications

KOYO 6306 2RS NR C3 deep groove ball bearing is widely used in electric motors, industrial fans, conveyors, gear units and machinery requiring axial positioning within the housing.

The bearing size 30x72x19 mm combined with snap ring mounting makes it ideal for applications where fast installation and secure positioning are essential.

Technical specifications

Type: deep groove ball bearing
Manufacturer: KOYO
Model: 6306 2RS NR C3
Inner diameter: 30 mm
Outer diameter: 72 mm
Width: 19 mm
Sealing: 2RS double rubber seals
Internal clearance: C3
Additional feature: snap ring NR
Design: single row
Material: high quality bearing steel
Lubrication: pre lubricated

Operational advantages

KOYO 6306 2RS NR C3 offers reliable sealing, increased thermal tolerance and simplified installation thanks to the snap ring design. The C3 clearance improves performance in high speed and elevated temperature conditions.

The 30x72x19 bearing dimensions ensure compatibility with standard industrial systems, while the NR feature reduces assembly time and enhances positioning accuracy.

Dimensional compatibility

The KOYO 6306 2RS NR C3 bearing 30x72x19 mm complies with standard dimensions of the 6306 series and can replace equivalent bearings from manufacturers such as SKF, FAG, NSK or NTN.

Search phrases such as bearing 30x72x19, 6306 2RS NR C3 bearing or deep groove ball bearing KOYO 6306 reinforce its position within the KOYO deep groove ball bearing category.

Main description

KOYO 6306 2RS NR C3 is a deep groove ball bearing designed to support radial loads and moderate axial loads in industrial applications requiring sealing, increased internal clearance and secure axial positioning.

The KOYO 6306 2RS NR C3 30x72x19 mm bearing ensures reliable performance, easy installation and long service life in demanding industrial environments.

FAQ

What is the purpose of the NR snap ring
It allows quick and secure axial positioning of the bearing in the housing.

Where is KOYO 6306 2RS NR C3 used
It is used in motors, conveyors and industrial machinery requiring fixed positioning.

Is this bearing suitable for high speed applications
Yes, the C3 clearance supports higher speeds and temperatures.

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.