Precision Ball Bearings 7120KRDS-BKE 7

C-NTN C1-242 kN d-315 kN D-35.9 kN G-4,100 rpm

Characteristic cage frequency, FTF-1.24 kg Characteristic rolling element frequency, BSF-131 kN Characteristic outer ring frequency, BPF0-279 kN Characteristic inner ring frequency, BPFI-2,100 rpm da min-3,200 rpm

Ca min-120 °C Cb min-0.43 Hz ra max-6.83 Hz r1a max-7.75 Hz d1-10.25 Hz

Characteristic outer ring frequency, BPF0-0.46 Hz Characteristic inner ring frequency, BPFI-10.47 Hz da min-13.64 Hz Da max-16.36 Hz Db min-175 mm

Number of lubrication holes-4.5 mm b-2 mm k-1.5 mm e-55 mm Y1-100 mm

Characteristic inner ring frequency, BPFI-45.5 mm da min-1 mm da max-20 mm Da max-52 mm ra max-15 mm

Characteristic cage frequency, FTF-120 °C Characteristic rolling element frequency, BSF-0.41 Hz Characteristic outer ring frequency, BPF0-5.26 Hz Characteristic inner ring frequency, BPFI-6.57 Hz da min-9.43 Hz

Characteristic outer ring frequency, BPF0-4,000 rpm Characteristic inner ring frequency, BPFI--20 °C da min-120 °C dc min-0.45 Hz Da max-10.79 Hz

Radial clearance class-2.1 mm Precision class-CN Mass-4.04 kg Brand-230 kN Dynamic load, C-298 kN

B-2.5 mm C-120 mm T-260 mm d1-86 mm a-156.9 mm

T min.-11.2 kN T max.--20 °C Weight-100 °C Recommended tightening torque for set screw-3.7 Nm B-1.9 mm

Radial clearance class-45 mm Mass (without HJ ring)-51 mm Brand-0.6 mm Dynamic load, C-0.6 mm Static load, C0-4 mm

Characteristic outer ring frequency, BPF0-3 mm Characteristic inner ring frequency, BPFI-3 da max-15.6 mm db min-7 mm Da max-H2322

D1-480 mm rs min-4 mm Number of lubrication holes-240 mm b-500 mm k-155 mm

Characteristic inner ring frequency, BPFI-52 mm Fw-78 mm D-78 mm C-0.6 mm C1-1 mm

C0-2 mm T min.-0.5 mm T max.-50 mm Weight-110 mm Recommended tightening torque for set screw-27 mm