1309 ETN9 C3 SKF Self Aligning Ball Bearing 45x100x25

PRODUCT DESCRIPTION

1309 ETN9 C3 SKF is a self aligning ball bearing designed for industrial applications where shaft misalignment, thermal expansion, and dynamic loads occur simultaneously.

This bearing belongs to the SKF self aligning ball bearings category and features a double row ball design combined with a spherical outer ring raceway. This construction allows automatic alignment during operation, significantly reducing stress on the bearing and surrounding components. The additional C3 internal clearance ensures reliable performance in elevated temperature conditions and high speed environments.

Industrial applications

The SKF 1309 ETN9 C3 45x100x25 bearing is widely used in industrial systems where precision alignment is difficult to maintain.

Typical applications include:

• industrial machinery and production equipment

• fans and ventilation systems

• conveyors and transport systems

• agricultural machines

• pumps and gearboxes

Thanks to its self aligning capability and increased clearance, this bearing performs reliably in applications exposed to shaft deflection and thermal expansion.

Construction and design

The SKF 1309 ETN9 C3 bearing is engineered for durability and high efficiency in demanding conditions.

Key design features:

• double row self aligning ball bearing

• spherical outer ring raceway

• ETN9 polyamide cage for reduced friction

• increased internal clearance C3

• open design for flexible lubrication

The polyamide cage minimizes friction and heat generation, while the C3 clearance compensates for thermal expansion, ensuring stable operation under load.

Operational advantages

SKF self aligning ball bearings provide several performance benefits:

• automatic compensation of angular misalignment

• stable operation at high speeds

• improved performance under elevated temperatures

• reduced vibration and noise

• extended service life

This makes the 1309 ETN9 C3 SKF bearing a reliable solution for demanding industrial applications.

Dimensional compatibility

The 45x100x25 mm bearing size ensures compatibility with a wide range of industrial equipment and standardized shaft configurations.

Common search queries include:

• bearing 45x100x25

• SKF 1309 ETN9 C3 dimensions

• self aligning ball bearing 45 mm

• SKF 1309 C3 bearing

Standard dimensions allow quick replacement without modification of existing machinery.

TECHNICAL SPECIFICATIONS

Type: self aligning ball bearing
Manufacturer: SKF
Model: 1309 ETN9 C3
Inner diameter: 45 mm
Outer diameter: 100 mm
Width: 25 mm
Cage: ETN9 polyamide cage
Internal clearance: C3
Design: double row self aligning
Sealing: open
Weight: 0.935 kg

FAQ

What does C3 clearance mean in SKF 1309 bearing
C3 indicates increased internal clearance for better performance at high temperatures and speeds.

Can this bearing compensate shaft misalignment
Yes, the self aligning design allows angular misalignment between shaft and housing.

Is it suitable for high speed applications
Yes, the polyamide cage and optimized design allow higher rotational speeds.

What loads can it support
It supports primarily radial loads and moderate axial loads in both directions.

Where is this bearing typically used
It is used in industrial machinery, conveyors, fans, pumps, and agricultural equipment.