NA4905 Needle Roller Bearings


説明

Machined type needle roller bearing NA4905, the NA4905 inner diameter is 25mm, the outer diameter is 42mm, the width of the cone (inner ring) is 17mm, and the outer ring width is 17mm.

These housings are lightweight housings that are also easy to equip, these bearing outboard housings are large bearings that can use housings and fully loaded ro-ro series.

Therefore, it is possible to select bearings suitable for use in conditions such as heavy loads and high-speed rotation. In addition, there are inner rings and bearings without inner rings.

The type without an inner ring has a low shaft roller raceway, so a compact design can be realized.

Mfr. Model # NA4905

Technical Specs

Spec NA4905
Item Needle Roller Bearings
Type /
Bore Dia. 25 mm
Outside Dia. 42 mm
Width 17 mm
ABEC Tolerance /


Dynamic Load Capacity (kN) 24.2kN
Static Load Capacity (kN) 34.5kN
Max. RPM 17,000 r/min(Grease)26,000r/min(Oil)
Temp. Range (℃) /
Material /
Shield Material /
Lubrication Grease/oil

Needle roller bearings with the same inner diameter as NA4905 also have NA6905. If you need any type of needle roller bearings or bearings with special requirements, you can contact us for customization. For more needs, please contact our professional account team, we will be happy to help you!

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