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NA4876 Needle roller bearings with machined rings, with an inner ring

Short Description:

The Needle Roller Bearings are bearings with machined rings made of bearing steel that have a low sectional height and a high load carrying capacity. The outer ring has stable, high rigidity and can be used even for light alloy housings. The Machined Needle Roller is made from Chrome Steel and can be used with or without an inner ring. This type with an inner ring uses a shaft as the raceway surface, making its design more compact.


Product Detail

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NA4876 Needle roller bearings with machined rings, with an inner ring detail Specifications:

Material : 52100 Chrome Steel

Type : single row

Limiting Speed : 1000 rpm

Weight : 42.6 kg

 

Main Dimensions:

Bore Diameter (d) : 380 mm

Raceway diameter inner ring (F) : 415 mm

Outer diameter (D) : 480 mm

Width (B) : 100 mm

Chamfer dimension outer ring (r) min. : 2.1 mm

Permissible axial displacement from the normal position of one bearing ring relative to the other (S) : 2.0 mm

Dynamic load ratings (Cr) : 1130 KN

Static load ratings (Cor) : 2900 KN

 

ABUTMENT DIMENSIONS

Smallest permissible abutment diameter shaft, bearings with flanges (da) min. : 391 mm

Abutment diameter housing (with flanges) (Da) max. : 469 mm

Fillet radius (ra) max. : 2.0 mm

NA BEARING DRAWING

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