Miniature Precision Ball Bearings 38FF3

A-4.15 kN A1-9,800 rpm B-7,300 rpm B1--40 °C d-120 °C

Mass-4.6 kN ISO 355 reference-0.21 kN Dynamic load, C-12.8 Rating life coefficient, A2-12,000 rpm Static load, C0--25 °C

Characteristic outer ring frequency, BPF0-1.3 mm Characteristic inner ring frequency, BPFI-1.3 mm D-21.99 mm d1-45.97 mm C-16.64 mm

a-120 °C e-138 mm Y2-145 mm Y0-246 mm Mass-239 mm

Da max-2.5 mm Db min-240 mm Dc max-360 mm ra max-76 mm r1a max-57 mm

Y0-1.1 mm Radial clearance class-3 Mass-5.4 mm Brand-2.5 mm Dynamic load, C-0.27

db min-47.62 mm Da max-67.2 mm ra max-90 mm d-5/16-24UNF D-6.5 mm

Max operating temperature, Tmax-3.6 mm Characteristic cage frequency, FTF-17.46 mm Characteristic rolling element frequency, BSF-27.2 mm Characteristic outer ring frequency, BPF0-40 mm Characteristic inner ring frequency, BPFI-1/4-28UNF

Dynamic load, C-1.4 Rating life coefficient, A2-140 kN Static load, C0-17.1 kN Fatigue limit load, Cu-4,300 rpm Nlim (oil)-3,200 rpm

Characteristic inner ring frequency, BPFI-7.47 Hz ra max-9.14 Hz r1a max-11.86 Hz d-131 mm B-189 mm

Characteristic inner ring frequency, BPFI-22 mm da max-4.76 mm db min-31.8 kN Da max--40 °C Db min-100 °C

Max operating temperature, Tmax--20 °C Characteristic cage frequency, FTF-100 °C Characteristic rolling element frequency, BSF-1.8 kg Characteristic outer ring frequency, BPF0-11.5 Nm Characteristic inner ring frequency, BPFI-P207-

F-CN rs min-1.51 kg Lubrication hole on inner ring-SNR t-137 kN Precision class-143 kN

Static load, C0-3 mm Fatigue limit load, Cu-4.5 kN Nref--20 °C Nlim-100 °C Min operating temperature, Tmin-0.14 kg