Needle bearing with ribs flat needle roller bearing NA4919

Needle bearing with ribs flat needle roller bearing NA4919

1. germany needle roller bearing

2. Needle roller bearings with ribs 

3. NA4919

NA4919 Needle roller bearings with ribs are X-life bearings. These bearings have optimised raceway surfaces. This gives higher load carrying capacity and longer rating life.The cages are made from sheet steel.

Description of NA4919 Needle roller bearings with ribs

Inside diameter= 95 mm

Outside diameter=130 mm

Width=36 mm

Axial displacement=1 mm

Mass=1371 g

Basic dynamic load rating, radial= 131000 N

Basic static load rating, radial= 260000 N

Fatigue limit load, radial= 44500 N

Limiting speed= 4200 rpm

Reference speed= 2550 rpm

Needle roller bearing suffix description:

C3: Radial internal clearance larger than normal

P5: High dimensional and geometrical accuracy

RSR: Contact seal on one side

TV: Bearing with cage made from glass fibre reinforced polyamide 66

ZW: Double row design, dependent on the size

2RSR: Contact seals on both sides

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