Product Details

35 mm x 55 mm x 20 mm KOYO NA4907 Needle bearing

Brand Name KOYO
Model Number NA4907
Min.Order Quantity 1 pcs
Price Negotiable

Product Features

KOYO NA4907 bearing Size Chart (mm/inches)

d63.5 mm
D107.95 mm
B25.4 mm
C19.05 mm
T25.4 mm
d189 mm
a24.8 mm
e0.46
Y21.31
Y00.72
Mass0.93 kg
Dynamic load, C91.5 kN
Rating life coefficient, A21.9
Static load, C0140 kN
Fatigue limit load, Cu17.1 kN
Nlim (oil)4,300 rpm
Nlim (grease)3,200 rpm
Min operating temperature, Tmin-40 °C
Max operating temperature, Tmax120 °C
Characteristic cage frequency, FTF0.45 Hz
Characteristic rolling element frequency, BSF9.95 Hz
Characteristic outer ring frequency, BPF011.31 Hz
Characteristic inner ring frequency, BPFI13.69 Hz
ra max3.5 mm
r1a max0.8 mm
All Products Contact Now