RNA4907 needle roller bearing size 42x55x20mm
- 50 Pieces
- China
- 7 days
- 200000 Pieces per Week
Large inventories rich stock.
Most representative bearing of the rolling bearings
Suitable for high speed even extremely high speed
Durable, less maintenance frequency
Simple structure and low cost
Brand name | Chinese brand or OEM |
Weight | 0.11kg |
Thickness | 20mm |
Inner diameter | 42mm |
Outer diameter | 55mm |
Material | bearing steel |
Cage | steel cage |
Needle Roller Bearing RNA4907
Description of the bearing:
1)Needle roller bearings are roller bearings with cylindrical rollers that are long and thin in relation to their diameter.
3)The needle roller bearing also have many different designs: needle roller and cage assembles, drawn cup needle roller bearings, needle roller bearing with machined rings, and so on.
4)Needle roller bearing with out a inner ring with a prefix "RNA" is an excellent choice for compact bearing arrangements if the shaft can be hardened and ground.
5)In this bearing, an inner ring is not needed, the shaft diameter can be larger and therefore stronger and stiffer. Because Axial displacement of the shaft relative to the housing is only limited by the width of the raceway on the shaft.
6)In RNA series, there are two flanges on the outer ring.
7)By machining the shaft raceways to the appropriate dimensional and form accuracy, it is possible to produce bearing arrangements with heightened running accuracy.
Application:
Needle roller bearings have a high load carrying capacity and are therefore extremely suitable for bearing arrangements where radial space is limited.
Advantages of the bearing:
Sample designed.
high load carrying capacity
many different designs
wide range of size
suitable for different application
Please send us your enquiry at any time, if you have any needs of bearings. Thank you.
