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Select all	Attribute	Value
	Brand	SKF
	Product Type	Roller Bearing
	Inside Diameter	25mm
	Race Width	17mm
	Bore Type	Cylindrical
	Cage Material	Non-Metallic
	Number of Rows	1
	Static Load Rating	36.5kN
	Internal Clearance	CN
	Outside Diameter	62mm
	Dynamic Load Rating	46.5kN
	End Type	Shielded
	Standards/Approvals	No
	Series	NU 305 ECP
	Limiting Speed	15000rpm

	Select all
	Brand SKF
	Product Type Roller Bearing
	Inside Diameter 25mm
	Race Width 17mm
	Bore Type Cylindrical
	Cage Material Non-Metallic
	Number of Rows 1
	Static Load Rating 36.5kN
	Internal Clearance CN
	Outside Diameter 62mm
	Dynamic Load Rating 46.5kN
	End Type Shielded
	Standards/Approvals No
	Series NU 305 ECP
	Limiting Speed 15000rpm

Datasheet - NU 305 ECP

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COO (Country of Origin):: DE

SKF NU 305 ECP Series Roller Bearing, 25mm Inside Diameter, 62mm Outside Diameter - NU 305 ECP

This roller bearing is a single-row, shielded cylindrical bore component designed to support rotational assemblies operating at elevated speeds. It is intended for use where controlled internal clearance and non-metallic cage construction contribute to consistent performance within Compact assemblies.

Features and Benefits:

• Shielded design reduces contamination ingress and maintenance needs
• Non-metallic cage lowers operational noise and vibration
• CN internal clearance ensures predictable axial play under load
• High limiting speed of 15,000 r/min supports rapid-rotation applications
• Dynamic load capacity of 46.5 kN provides extended fatigue life

Applications

• Suitable for electric motor rotor support in high-speed drives
• Ideal for precision spindle systems requiring controlled clearance
• Used with industrial gearbox shafts operating at elevated rpm
• Can be used for automation equipment requiring low vibration
• Appropriate for centrifugal pump shafts in Compact housings

What axial movement can be expected under thermal variation?

The specified internal clearance class CN allows for limited and predictable axial displacement as temperatures change, helping maintain bearing function without excessive preload.

How does the cage material affect lubricant retention?

A non-metallic cage typically offers improved retention of lubricants at contact points, contributing to a steady lubrication film and reduced metal-to-metal contact.

What operating condition dictates the choice of a shielded end configuration?

Shielded ends are chosen when moderate protection against dust and particle ingress is required without significantly increasing friction compared with sealed arrangements.

How should the bearing be matched to shaft fit for optimum performance?

Select a cylindrical bore interference or transition fit based on shaft tolerance to control radial location while preserving the CN clearance for axial compensation.

Which load type is primarily supported by this bearing design?

The bearing is suited to accommodate substantial dynamic loads, reflected in its 46.5 kN dynamic rating, while also managing static loads up to 36.5 kN when stationary.

SKF NU 305 ECP 25 mm ID Roller Bearing, 62 mm OD

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