Needle roller bearings RNA4948 NTN
NTN

Needle roller bearings RNA4948

Bearing NTN RNA4948, Ø55×320×22 mm. Request a quote — worldwide shipping.

Code: RNA4948
Type Needle roller bearings
Dimensions Ø 55 × 320 × 22 mm
d55Bore Ø (mm)
×
D320Outer Ø (mm)
×
B22Width (mm)
All bearings 55×320×22 mm Compare all brands with this size
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In stock

Technical specifications

BrandNTN
Fw - Under rollers diameter265 mm
D - External diameter320 mm
C - Width of bearing, drawn cup or outer ring80 mm
rs - Min fillet radius2,1 mm
Lubrication hole on outer ringOui/Yes
k - Hole diameter4 mm
Radial clearance classCN
Precision classP0
Mass8,4 kg
Cr - Dynamic load rating540000000 mN
C0r - Static load rating1350000000 mN
N lim - Grease lubrication limit speed6000 °/s
N lim - Oil lubrication limit speed9000 °/s
Tmin - Min operating temperature253,15 °K
Tmax - Max operating temperature393,15 °K
Da max - Max shoulder diameter OR309 mm
ras max - Max shaft & housing fillet radius2 mm

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NTN RNA4948