Bearing NAP211-35 KOYO
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Min.Order Quantity |
1 pcs |
Price |
Negotiable |
Product Details
Bearing number |
708 ACD/HCP4AH |
Size (mm) |
22x8x7 |
Bore Diameter (mm) |
22 |
Outer Diameter (mm) |
8 |
Width (mm) |
7 |
d |
8 mm |
D |
22 mm |
B |
7 mm |
d1 |
12.6 mm |
d2 |
12.6 mm |
D1 |
17.4 mm |
K |
0.5 mm |
C1 |
4.25 mm |
r1,2 - min. |
0.3 mm |
r3,4 - min. |
0.2 mm |
a |
7 mm |
da - min. |
10 mm |
db - min. |
10 mm |
Da - max. |
20 mm |
Db - max. |
20.6 mm |
ra - max. |
0.3 mm |
rb - max. |
0.2 mm |
dn |
13.6 mm |
Basic dynamic load rating - C |
3.2 kN |
Basic static load rating - C0 |
1.3 kN |
Fatigue load limit - Pu |
0.056 kN |
Limiting speed for grease lubrication |
95000 r/min |
Limiting speed for oil lubrication |
150000 mm/min |
Ball - Dw |
3.969 mm |
Ball - z |
9 |
Gref |
0.15 cm3 |
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 |
20 N |
Preload class B - GB |
40 N |
Preload class C - GC |
80 N |
Preload class D - GD |
160 N |
Calculation factor - f |
1.02 |
Calculation factor - f1 |
0.99 |
Calculation factor - f2A |
1 |
Calculation factor - f2B |
1.02 |
Calculation factor - f2C |
1.05 |
Calculation factor - f2D |
1.08 |
Calculation factor - fHC |
1.02 |
Preload class A |
32 N/micron |
Preload class B |
41 N/micron |
Preload class C |
53 N/micron |
Preload class D |
71 N/micron |
r1,2 min. |
0.3 mm |
r3,4 min. |
0.2 mm |
da min. |
10 mm |
db min. |
10 mm |
Da max. |
20 mm |
Db max. |
20.6 mm |
ra max. |
0.3 mm |
rb max. |
0.2 mm |
Basic dynamic load rating C |
3.19 kN |
Basic static load rating C0 |
1.34 kN |
Fatigue load limit Pu |
0.056 kN |
Attainable speed for grease lubrication |
95000 r/min |
Attainable speed for oil-air lubrication |
150000 r/min |
Ball diameter Dw |
3.969 mm |
Number of balls z |
9 |
Reference grease quantity Gref |
0.15 cm³ |
Preload class A GA |
20 N |
Static axial stiffness, preload class A |
32 N/µm |
Preload class B GB |
40 N |
Static axial stiffness, preload class B |
41 N/µm |
Preload class C GC |
80 N |
Static axial stiffness, preload class C |
53 N/µm |
Preload class D GD |
160 N |
Static axial stiffness, preload class D |
71 N/µm |
Calculation factor f |
1.02 |
Calculation factor f1 |
0.99 |
Calculation factor f2A |
1 |
Calculation factor f2B |
1.02 |
Calculation factor f2C |
1.05 |
Calculation factor f2D |
1.08 |
Calculation factor fHC |
1.02 |
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 |
0.011 kg |