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material: Standard Locknut LLC SR 20-17 Stabilizing Rings
Stabilizing Rings
Standard Locknut LLC SR 20-17 Bearing SPECIFICATIONS
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SR 20-17
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Machinery Parts Bearing Company2020-07-10 09:46:19
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Standard Locknut LLC SR 20-17 Standard Locknut LLC Code Description material: Standard Locknut LLC SR 20-17 Stabilizing Rings Stabilizing Rings
Standard Locknut LLC SR 20-17 bearing Size Chart (mm/inches) | |
---|---|
Bearing number | 71903 CD/HCP4A |
Size (mm) | 30x17x7 |
Bore Diameter (mm) | 30 |
Outer Diameter (mm) | 17 |
Width (mm) | 7 |
d | 17 mm |
D | 30 mm |
B | 7 mm |
d1 | 20.9 mm |
d2 | 20.9 mm |
D1 | 25.7 mm |
r1,2 - min. | 0.3 mm |
r3,4 - min. | 0.2 mm |
a | 6.7 mm |
da - min. | 19 mm |
db - min. | 19 mm |
Da - max. | 28 mm |
Db - max. | 28.6 mm |
ra - max. | 0.3 mm |
rb - max. | 0.2 mm |
dn | 22.1 mm |
Basic dynamic load rating - C | 4.2 kN |
Basic static load rating - C0 | 2.1 kN |
Fatigue load limit - Pu | 0.088 kN |
Limiting speed for grease lubrication | 63000 r/min |
Limiting speed for oil lubrication | 90000 mm/min |
Ball - Dw | 3.969 mm |
Ball - z | 14 |
Gref | 0.24 cm3 |
Calculation factor - f0 | 9.8 |
Preload class A - GA | 15 N |
Preload class B - GB | 30 N |
Preload class C - GC | 60 N |
Preload class D - GD | 120 N |
Calculation factor - f | 1.05 |
Calculation factor - f | 1 |
Calculation factor - f2A | 1 |
Calculation factor - f2B | 1.07 |
Calculation factor - f2C | 1.12 |
Calculation factor - f2D | 1.18 |
Calculation factor - fHC | 1.04 |
Preload class A | 18 N/micron |
Preload class B | 24 N/micron |
Preload class C | 34 N/micron |
Preload class D | 47 N/micron |
d1 | 20.9 mm |
d2 | 20.9 mm |
D1 | 25.7 mm |
r1,2 min. | 0.3 mm |
r3,4 min. | 0.2 mm |
da min. | 19 mm |
db min. | 19 mm |
Da max. | 28 mm |
Db max. | 28.6 mm |
ra max. | 0.3 mm |
rb max. | 0.2 mm |
dn | 22.1 mm |
Basic dynamic load rating C | 4.16 kN |
Basic static load rating C0 | 2.08 kN |
Fatigue load limit Pu | 0.088 kN |
Attainable speed for grease lubrication | 63000 r/min |
Attainable speed for oil-air lubrication | 90000 r/min |
Ball diameter Dw | 3.969 mm |
Number of balls z | 14 |
Reference grease quantity Gref | 0.24 cm³ |
Preload class A GA | 15 N |
Static axial stiffness, preload class A | 18 N/µm |
Preload class B GB | 30 N |
Static axial stiffness, preload class B | 24 N/µm |
Preload class C GC | 60 N |
Static axial stiffness, preload class C | 34 N/µm |
Preload class D GD | 120 N |
Static axial stiffness, preload class D | 47 N/µm |
Calculation factor f | 1.05 |
Calculation factor f1 | 1 |
Calculation factor f2A | 1 |
Calculation factor f2B | 1.07 |
Calculation factor f2C | 1.12 |
Calculation factor f2D | 1.18 |
Calculation factor fHC | 1.04 |
Calculation factor f0 | 9.8 |
Mass bearing | 0.015 kg |
Standard Locknut LLC SR 20-17 INTERCHANGE
Stabilizing Rings Part series SR 20-17 is a potential replacement for these common bearing part numbers:
SR 20-17
SR 20-17
SR 20-17
SR 20-17
SR 20-17
SR 20-17
SR 20-17
SR 20-17
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Contact Us

- Machinery Parts Bearing Company
- AddressLinqing City Industrial Park, Liaocheng City, Shandong Province, China
- Phone(Working Time)86-0635-2462633
- Fax86-0635-2462634