Angular contact ball bearings, super-precision S71911 CD/HCP4A
Bearing number : S71911 CD/HCP4A
Size (mm) : 55x80x13
Brand : SKF
Bore Diameter (mm) : 55
Outer Diameter (mm) : 80
Width (mm) : 13
Bearing dimensions and specification in SKF catalogue:
d - 55 mm
D - 80 mm
B - 13 mm
d1 - 62.7 mm
d2 - 62.7 mm
D2 - 74.57 mm
r1,2 - min. - 1 mm
r3,4 - min. - 0.3 mm
a - 15.6 mm
da - min. - 59.6 mm
da - max. - 62.1 mm
db - min. - 59.6 mm
db - max. - 62.1 mm
Da - max. - 75.4 mm
Db - max. - 78 mm
ra - max. - 1 mm
rb - max. - 0.3 mm
Basic dynamic load rating - C - 19.5 kN
Basic static load rating - C0 - 14.6 kN
Fatigue load limit - Pu - 0.62 kN
Limiting speed for grease lubrication - 19000 r/min
Ball - Dw - 7.938 mm
Ball - z - 23
Calculation factor - f0 - 10.4
Preload class A - GA - 70 N
Preload class B - GB - 140 N
Preload class C - GC - 280 N
Preload class D - GD - 560 N
Calculation factor - f - 1.15
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
Preload class A - 54 N/micron
Preload class B - 72 N/micron
Preload class C - 99 N/micron
Preload class D - 140 N/micron
Mass bearing - 0.155 kg
Skf S71911cd/hcp4a High Super Precision Angular Contact .
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S71911CD/HCP4A bearing SKF S71911CD/HCP4A - Cheap .
SKF S71911CD/HCP4A bearing. SKF S71911CD/HCP4A, Size: SKF S71911CD/HCP4A bearing, Size: 55x80x13. SKF S71911CD/HCP4A are used in a wide variety of applications, they are simple in design, suitable for high speeds and are robust in operation, and need little maintenance.
SKF Bearings - Bearing Parts & Supplies - Grainger .
Ball bearings are used with applications that have high axial loads and low-to-moderate radial loads. Mounted bearings (bearing units) have a bearing inside a housing unit to ensure a secure fit and mount. Sleeve and clip bearings support high loads, have no moving parts, and require lubricant to allow the shaft to turn smoothly.
SKF/FAG bearings | Adventure Rid
I sold bearings for many years. IMHO, SKF are arguably the best, but to be fair there isn't a great deal of difference in quality between the various "better" brands these days. My personal preference is still SKF, but any reputable brand such as NTN, NSK, NACHI, KOYO and FAG will be of consistently excellent quality.