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SKF 50 mm Inside Diameter 70 mm Outside Diameter Needle Roller Bearing NKX 50 Z

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SKF 50 mm Inside Diameter 70 mm Outside Diameter Needle Roller Bearing NKX 50 Z

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Category Roller Bearings Brand SKF Condition New

Specifications

Country of Origin	India
Brand	SKF
Model	NKX 50 Z
Series	NKX 50 Z
Outside diameter	70mm
Roller Material	Steel
Inside Diameter	50mm
Bearing Material	Steel
Number of Rows	1
Limiting Speed	3600rpm
Internal Clearance	Normal
Bore Type	Round
Bearing Type	Needle
Standards/Approvals	ISO - F6 (Fw) + E8 (d)
Race Width	35mm
Static Load Rating	81.5kN
Dynamic Load Rating	38kN

Key Features

This bearing features a combined needle roller and thrust ball bearing configuration providing both radial and axial load capacity.
Its low cross-sectional height of 71.5 mm makes it compact and space-saving for tight installations.
The bearing has a 35 mm race width with a round bore type, suitable for direct shaft mounting.
Constructed entirely from steel, it has a steel roller material and bearing material, ensuring durability and high load ratings.
The static load rating is 81.5 kN and the dynamic load rating is 38 kN, supporting demanding applications.
The bearing supports speeds up to 3600 rpm and complies with ISO standards F6 (Fw) and E8 (d).
Its internal clearance is standard (normal), and it consists of one row of rollers.
This bearing is ideal for applications in domestic appliances, aerospace engineering, and the mining industry.

Product Description

SKF NKX 50 Z needle roller bearing is a precision engineered bearing designed to provide reliable performance under combined radial and axial loads. Featuring a 50 mm inside diameter and a 70 mm outside diameter, this bearing integrates needle rollers with a thrust ball bearing in a compact design with a low cross-sectional height of 71.5 mm. This design makes it suitable for use where space is limited and axial support is required in one direction.

The bearing race width measures 35 mm and has a round bore type that allows it to be mounted directly onto the shaft without a separate inner ring in most cases. Needle rollers and thrust balls are secured in cages that reduce noise and minimize wear for longer service life. Made entirely of steel, it ensures robustness and high load carrying capacity with a static load rating of 81.5 kN and a dynamic load rating of 38 kN.

With a limiting speed of 3600 rpm, the NKX 50 Z bearing is suitable for medium-velocity applications and meets ISO standards F6 (Fw) for shaft tolerance and E8 (d) for internal clearance. Its construction includes a durable stamped-steel cover that retains grease, enhancing maintenance intervals and performance in demanding conditions.

Common application areas include domestic appliances, aerospace engineering, and mining industry equipment where this combination bearing supports operational stability effectively. In cases where the shaft surface is not hardened or ground, SKF recommends using the IR 45X50X25 inner ring to ensure proper bearing fitment and performance.

Combined needle roller and thrust ball bearing for radial and axial loads. Compact cross-sectional height of 71.5 mm for space-saving installations. Durable steel construction with high static and dynamic load ratings. Fits directly on shaft; inner ring recommended for soft shafts.

Complies with ISO F6 shaft and E8 internal clearance standards. Suitable for medium speed applications up to 3600 rpm. Low noise and wear due to roller and ball cages. Applications in aerospace, mining, and domestic appliances.

Explore the extensive range of SKF Roller Bearings available for industrial, manufacturing, and maintenance use cases on EnvMart.