Angular contact ball bearings, super-precision 7021 ACD/HCP4AH1
Bearing number : 7021 ACD/HCP4AH1
Size (mm) : 105x160x26
Brand : SKF
Bore Diameter (mm) : 105
Outer Diameter (mm) : 160
Width (mm) : 26
Bearing dimensions and specification in SKF catalogue:
d - 105 mm
D - 160 mm
B - 26 mm
d1 - 121.9 mm
d2 - 121.9 mm
D1 - 143.1 mm
K - 0.5 mm
C1 - 6.92 mm
r1,2 - min. - 2 mm
r3,4 - min. - 1 mm
a - 44 mm
da - min. - 114 mm
db - min. - 114 mm
Da - max. - 151 mm
Db - max. - 155 mm
ra - max. - 2 mm
rb - max. - 1 mm
dn - 125.6 mm
Basic dynamic load rating - C - 90.4 kN
Basic static load rating - C0 - 93 kN
Fatigue load limit - Pu - 3.4 kN
Limiting speed for grease lubrication - 9000 r/min
Limiting speed for oil lubrication - 14000 mm/min
Ball - Dw - 17.462 mm
Ball - z - 21
Gref - 20.4 cm3
Calculation factor - e - 0.68
Calculation factor - Y2 - 0.87
Calculation factor - Y0 - 0.38
Calculation factor - X2 - 0.41
Calculation factor - Y1 - 0.92
Calculation factor - Y2 - 1.41
Calculation factor - Y0 - 0.76
Calculation factor - X2 - 0.67
Preload class A - GA - 560 N
Preload class B - GB - 1120 N
Preload class C - GC - 2240 N
Preload class D - GD - 4480 N
Calculation factor - f - 1.15
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 - 309 N/micron
Preload class B - 405 N/micron
Preload class C - 537 N/micron
Preload class D - 727 N/micron
Mass bearing - 1.317 kg
Our excellent service team assures that you receive the right bearing at the best price in the shortest period of time. Brands include SKF, FAG, INA, NSK, NTN, TIMKEN, IKO, THK, NMB, EASE, FYH, KOYO, HIWIN, MAGILL.Our products include Deep groove ball bearing, Self-aligning ball bearing, Cylinder roller bearing, Self-aligning roller bearing.
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1. They are wrong. They market OEM and aftermarket, each has different performance criteria. They may have dropped what they called "value grade", but they are still marketing aftermarket hub bearings, and are working with China to source parts and hopefully source complete bearings.
Industrial seals - All Seals In
the field of rolling bearings, seals, mechatronics, services and lubrication. The services offered by the SKF group include technical support, maintenance services, condition monitoring and training. SKF was founded in 1907 and grew at a rapid rate to become a global company.
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 | Bearings, Units and Housings, Ball Bearin
SKF. Chances are you know SKF for the bearings that keep your equipment running smoothly and efficiently. And with good reason: SKF bearings set the world standard for quality and reliability and are original equipment components in industrial machinery of every kind – motors, pumps, fans, gearboxes, conveyors, machine tool spindles and more.
7021ACD/HCP4AH1 bearing SKF 7021ACD/HCP4AH1 - Ultra high .
SKF 7021ACD/HCP4AH1 bearing. SKF 7021ACD/HCP4AH1, Size: SKF 7021ACD/HCP4AH1 bearing, Size: 105x160x26. SKF 7021ACD/HCP4AH1 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.
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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.
What are the best brands of ball bearings? - Quo
Certain brand is good in particular type of bearings, for example: SKF is good in spherical roller ( their invention), Timken is good in tapered roller (also their invention), Schaeffler group is good in needle rollers and NSK is good in precision ball bearings. it's difficult to single out best ball bearings brand nowadays.