Technical data
MR303920
Needle roller bearing, machined-ring, without inner ring
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Visual(s)
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Product definition
Fw 47.62 mm D 61.91 mm C 31.75 mm rs min 1.5 mm Dw 4.5 mm Lw 25.8 mm Lubrication hole on outer ring Oui/Yes k 3 mm Radial clearance class CN Precision class P0 Mass 0.22 kg Brand NTN -
Product performance
Cr 59 kN C0r 105 kN Nlim (grease) 5,500 Tr/min Nlim (oil) 8,500 Tr/min Min operating temperature, Tmin -20 °C Max operating temperature, Tmax 120 °C Characteristic cage frequency, FTF 0.46 Hz Characteristic rolling element frequency, BSF 11.5 Hz Characteristic outer ring frequency, BPF0 10.96 Hz Characteristic inner ring frequency, BPFI 13.04 Hz -
Abutment dimensions
Da max 55.5 mm ras max 1.5 mm
