NTN NU2224E cylindrical roller bearings
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What are the 68 Bore Diameter (mm) types 68x45x12 Size (mm) of NTN NU2224E cylindrical roller bearings ? Manufacturing Service . Get Your Free, Instant 45 Outer Diameter (mm) price, design review.
Size (mm) | 68x45x12 |
Bore Diameter (mm) | 68 |
Outer Diameter (mm) | 45 |
Width (mm) | 12 |
d | 45 mm |
D | 68 mm |
B | 12 mm |
d1 | 53.45 mm |
d2 | 52.4 mm |
D2 | 61.8 mm |
r1,2 – min. | 0.6 mm |
r3,4 – min. | 0.3 mm |
a | 22.1 mm |
da – min. | 48.2 mm |
da – max. | 52.9 mm |
db – min. | 48.2 mm |
db – max. | 51.8 mm |
Da – max. | 64.8 mm |
Db – max. | 66 mm |
ra – max. | 0.6 mm |
rb – max. | 0.3 mm |
Basic dynamic load rating – C | 7 kN |
Basic static load rating – C0 | 5.4 kN |
Fatigue load limit – Pu | 0.232 kN |
Limiting speed for grease lubrication | 24000 r/min |
Ball – Dw | 4.762 mm |
Ball – z | 27 |
Calculation factor – e | 0.68 |
Calculation factor – Y2 | 1.41 |
Calculation factor – Y0 | 0.76 |
Calculation factor – X2 | 0.67 |
Calculation factor – Y1 | 0.92 |
Preload class A – GA | 41 N |
Preload class B – GB | 82 N |
Preload class C – GC | 245 N |
Calculation factor – f | 1.08 |
Calculation factor – f1 | 0.99 |
Calculation factor – f2A | 1 |
Calculation factor – f2B | 1.02 |
Calculation factor – f2C | 1.07 |
Calculation factor – fHC | 1 |
Preload class A | 74 N/micron |
Preload class B | 95 N/micron |
Preload class C | 143 N/micron |
r1,2 min. | 0.6 mm |
r3,4 min. | 0.3 mm |
da min. | 48.2 mm |
da max. | 52.9 mm |
db min. | 48.2 mm |
db max. | 51.8 mm |
Da max. | 64.8 mm |
Db max. | 66 mm |
ra max. | 0.6 mm |
rb max. | 0.3 mm |
Basic dynamic load rating C | 9.56 kN |
Basic static load rating C0 | 9 kN |
Fatigue load limit Pu | 0.232 kN |
Attainable speed for grease lubrication | 24000 r/min |
Ball diameter Dw | 4.762 mm |
Number of balls z | 27 |
Preload class A GA | 41 N |
Static axial stiffness, preload class A | 74 N/µm |
Preload class B GB | 82 N |
Static axial stiffness, preload class B | 95 N/µm |
Preload class C GC | 245 N |
Static axial stiffness, preload class C | 143 N/µm |
Calculation factor f | 1.08 |
Calculation factor f1 | 0.99 |
Calculation factor f2A | 1 |
Calculation factor f2B | 1.02 |
Calculation factor f2C | 1.07 |
Calculation factor fHC | 1 |
Calculation factor e | 0.68 |
Calculation factor (single, tandem) Y2 | 0.87 |
Calculation factor (single, tandem) Y0 | 0.38 |
Calculation factor (single, tandem) X2 | 0.41 |
Calculation factor (back-to-back, face-to-face) Y1 | 0.92 |
Calculation factor (back-to-back, face-to-face) Y2 | 1.41 |
Calculation factor (back-to-back, face-to-face) Y0 | 0.76 |
Calculation factor (back-to-back, face-to-face) X2 | 0.67 |
Mass bearing | 0.14 kg |
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22210MB AST 50x90x23mm Material 52100 Chrome steel. or equivalent Spherical roller bearings | Bearing number 22210MB Size (mm) 50x90x23 Brand AST Bore Diameter (mm) 50 Outer Diameter (mm) 90 Width (mm) 23 Bearing Type straight bore Bore Dia (d) 50.0000 Outer Dia (D) 90.0000 Width (B) 23.0000 Radius (min) (rs) 1.100 Dynamic Load Rating (Cr) 78.000 Static Load Rating (Cor) 91.300 Max Speed (Grease) (X1000 RPM) 4 Max |
2208SK NTN 40x80x23mm Width 23mm Self aligning ball bearings | rs min 1.1 mm Associated sleeve reference H308X e 0.33 Y1 1.9 Y2 3 Y0 2 Radial clearance class CN Precision class P0 Mass 0.48 kg Dynamic load, C 22.4 kN Static load, C0 7.35 kN Nlim (oil) 9.000 rpm Nlim (grease) 7.500 rpm Min operating temperature, Tmin -20 °C Max operating temperature, Tmax 120 |
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