Cylindrical Roller Bearings N252
Brand Name |
NACHI |
Model Number |
N252 |
Min.Order Quantity |
1 pcs |
Price |
Negotiable |
Product Features
Enclosure | 31 mm |
Bore Type | 84.1 mm |
Configuration | 112.7 mm |
Weight | 1.5 mm |
Bore Size | 3 |
Outside Diameter | 7.4 mm |
Width | 3.5 mm |
Outside Ring Inside Diameter | 0.22 |
Fillet Radius/Chamfer | 3.01 |
r1 | 4.48 |
Characteristic inner ring frequency, BPFI-3 da max-5.8 mm db min-2.5 mm Da min-0.24 Da max-2.84
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Min operating temperature, Tmin-3 mm Max operating temperature, Tmax-15.2 kN Characteristic cage frequency, FTF--20 °C Characteristic rolling element frequency, BSF-100 °C Characteristic outer ring frequency, BPF0-5.5 Nm
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Static load, C0-0.77 Fatigue limit load, Cu-0.42 Nref-NTN Nlim-70.5 kN Min operating temperature, Tmin-1.4
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Characteristic rolling element frequency, BSF-13.5 mm Characteristic outer ring frequency, BPF0-NTN Characteristic inner ring frequency, BPFI--40 °C da min-120 °C Da max-1.5 mm
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F-SCO207-35 d1-19 mm rs min-34 mm r1s min-15 mm Radial clearance class-39.7 mm
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Nlim (grease)-24,000 rpm Min operating temperature, Tmin-20,000 rpm Max operating temperature, Tmax--20 °C Characteristic cage frequency, FTF-120 °C Characteristic rolling element frequency, BSF-0.34 Hz
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Characteristic outer ring frequency, BPF0-85 mm Characteristic inner ring frequency, BPFI-1 mm da min-85 mm Da max-110 mm ra max-110 mm
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db min-20.64 mm Da min-46 mm Da max-0.35 Db min-1.71 Ca min-0.94
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T max.-144 kN Weight-11,400 rpm B-7,100 rpm B1-GN B2-0.8 kN
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Characteristic rolling element frequency, BSF--40 °C Characteristic outer ring frequency, BPF0-120 °C Characteristic inner ring frequency, BPFI-0.44 Hz D-7.8 Hz d1-8.36 Hz
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da min-0.3 db min-1.98 Ce min-1.09 Da max-0.52 kg ra max-NTN
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Recommended tightening torque for set screw-200 °C B-0.44 Hz B1-7.41 Hz B2-9.13 Hz C-11.87 Hz
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Static load, C0-5.77 Hz Fatigue limit load, Cu-5.85 Hz Nref-8.15 Hz Nlim-0.8 mm Min operating temperature, Tmin-13.9 mm
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ra max-77 mm d1-75 mm e-106 mm Y2-111.5 mm Y0-113 mm
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ra max-55 mm B-44 mm d2-14.5 mm D1-80 mm rs min-170 mm
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Mass-69 kN ISO 355 reference-1.4 Brand-81.5 kN Dynamic load, C-9.9 kN Rating life coefficient, A2-7,600 rpm
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b-34.1 mm k-18.2 mm e-71.2 mm Y1-19.5 kN Y2-11.2 kN
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