Needle roller bearings NA4911R NTN
NTN

Needle roller bearings NA4911R

Bearing NTN NA4911R, Ø55×80×25 mm. Request a quote — worldwide shipping.

Code: NA4911R
Type Needle roller bearings
Dimensions Ø 55 × 80 × 25 mm
d55Bore Ø (mm)
×
D80Outer Ø (mm)
×
B25Width (mm)
All bearings 55×80×25 mm Compare all brands with this size
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In stock

Technical specifications

BrandNTN
d - Internal diameter55 mm
D - External diameter80 mm
C - Width of bearing, drawn cup or outer ring25 mm
F - Under roller diameter63 mm
rs - Min fillet radius1 mm
s - Max axial offset1,5 mm
Lubrication hole on outer ringOui/Yes
k - Hole diameter3 mm
Lubrication hole on inner ringNon/No
Radial clearance classCN
Precision classP0
Mass0,396 kg
Cr - Dynamic load rating58500000 mN
C0r - Static load rating99500000 mN
N lim - Grease lubrication limit speed25800 °/s
N lim - Oil lubrication limit speed39000 °/s
Tmin - Min operating temperature253,15 °K
Tmax - Max operating temperature393,15 °K
da min - Min shoulder diameter IR60 mm
Da max - Max shoulder diameter OR75 mm
ras max - Max shaft & housing fillet radius1 mm

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NTN NA4911R