SKF NK 40/30 40 mm ID Roller Bearing Needle, 50 mm OD

RS Stock No.:: 233-7199
Mfr. Part No.:: NK 40/30
Brand:: SKF

SKF NK 40/30 40 mm ID Roller Bearing Needle, 50 mm OD

View all Roller Bearings

Subtotal (1 unit)*

£40.50

(exc. VAT)

£48.60

(inc. VAT)

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Shipping from 21 May 2026

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1 +	£40.50

*price indicative

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RS Stock No.:: 233-7199
Mfr. Part No.:: NK 40/30
Brand:: SKF

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	SKF
	Product Type	Roller Bearing
	Inside Diameter	40mm
	Race Width	30mm
	Bore Type	Parallel
	Roller Material	Carbon Chrome Steel
	Cage Material	Reinforced Polyamide 66
	Limiting Speed	11000rpm
	Maximum Speed - Oil	10000rpm
	Maximum Speed - Grease	7000rpm
	Outside Diameter	50mm
	Dynamic Load Rating	38kN
	End Type	Open
	Series	NK
	Standards/Approvals	ISO - F6 (Fw)
	Static Load Rating	83kN
	Bearing Material	Steel
	Number of Rows	1
	Race Type	Grooved
	Bearing Type	Needle

	Select all
	Brand SKF
	Product Type Roller Bearing
	Inside Diameter 40mm
	Race Width 30mm
	Bore Type Parallel
	Roller Material Carbon Chrome Steel
	Cage Material Reinforced Polyamide 66
	Limiting Speed 11000rpm
	Maximum Speed - Oil 10000rpm
	Maximum Speed - Grease 7000rpm
	Outside Diameter 50mm
	Dynamic Load Rating 38kN
	End Type Open
	Series NK
	Standards/Approvals ISO - F6 (Fw)
	Static Load Rating 83kN
	Bearing Material Steel
	Number of Rows 1
	Race Type Grooved
	Bearing Type Needle

COO (Country of Origin):: DE

SKF Needle Roller Bearing, 40mm Inside Diameter, 30mm Race Width - NK 40/30

This needle roller bearing is designed for high load applications, featuring an inside diameter of 40mm and an outside diameter of 50mm. Constructed from robust steel, this component excels in mechanical setups where precision and strength are essential.

Features & Benefits

• High dynamic load rating supports demanding usage

• Can handle rotational speeds of up to 11,000rpm

• Single-row construction optimises space in machinery

• Fatigue limit load ensures longevity and reliability

• Sheet steel cage enhances durability during operation

• Tolerances provide versatility in installation setups

Applications

• Used in automation systems for efficient motion transfer

• Integral to mechanical assemblies for reduced friction

• Effective in electronic machinery requiring precise movement

• Applicable in heavy machinery for enhanced load management

What are the specific load ratings for this type of bearing?

The basic dynamic load rating is 38 kN, while the static load rating is 83 kN. This makes it suitable for applications that experience varying loads during operation.

How does the design contribute to its performance in industrial settings?

The needle roller design allows for a larger contact area, which increases load capacity and stability, making it ideal for high-stress environments.

What should be considered regarding installation tolerances?

Normal tolerances, along with P6 and P5 specifications, should be observed for optimal performance and to avoid premature wear in installations.

Are there specific seals compatible with this bearing model?

Yes, it is compatible with radial shaft seals that have low cross-sectional heights, both single lip and double lip variants.