Needle roller bearing, machined-ring, without inner ring

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Needle roller bearing, machined-ring, without inner ring, double-side ribs, lubrication hole

Technical data RNA4930

Product definition
Fw 170 mm
D 210 mm
C 60 mm
rs min 2 mm
Dw 10 mm
Lw 48 mm
Lubrication hole on outer ring Yes
k 4 mm
Radial clearance class CN
Precision class P0
Mass 2.98 kg
Brand NTN
Product performance
C0r 610 kN
Nlim (grease) 1,500 rpm
Nlim (oil) 2,400 rpm
Min operating temperature, Tmin -20 °C
Max operating temperature, Tmax 120 °C
Characteristic cage frequency, FTF 0.47 Hz
Characteristic rolling element frequency, BSF 17.94 Hz
Characteristic outer ring frequency, BPF0 15.11 Hz
Characteristic inner ring frequency, BPFI 16.89 Hz
Abutment dimensions
Da max 201 mm
ras max 2 mm
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