Angular contact ball bearings, super-precision 71940 ACD/P4AH1
Bearing number : 71940 ACD/P4AH1
Size (mm) : 200x280x38
Brand : SKF
Bore Diameter (mm) : 200
Outer Diameter (mm) : 280
Width (mm) : 38
Bearing dimensions and specification in SKF catalogue:
d - 200 mm
D - 280 mm
B - 38 mm
d1 - 224.7 mm
d2 - 224.7 mm
D1 - 255.3 mm
K - 0.6 mm
C1 - 10 mm
r1,2 - min. - 2.1 mm
r3,4 - min. - 1 mm
a - 75.2 mm
da - min. - 209 mm
db - min. - 209 mm
Da - max. - 271 mm
Db - max. - 275 mm
ra - max. - 2 mm
rb - max. - 1 mm
dn - 231.4 mm
Basic dynamic load rating - C - 199 kN
Basic static load rating - C0 - 250 kN
Fatigue load limit - Pu - 6.8 kN
Limiting speed for grease lubrication - 4300 r/min
Limiting speed for oil lubrication - 6300 mm/min
Ball - Dw - 25.4 mm
Ball - z - 26
Gref - 81 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 - 1250 N
Preload class B - GB - 2500 N
Preload class C - GC - 5000 N
Preload class D - GD - 10000 N
Calculation factor - f - 1.23
Calculation factor - f1 - 0.98
Calculation factor - f2A - 1
Calculation factor - f2B - 1.04
Calculation factor - f2C - 1.08
Calculation factor - f2D - 1.14
Calculation factor - fHC - 1
Preload class A - 484 N/micron
Preload class B - 635 N/micron
Preload class C - 845 N/micron
Preload class D - 1148 N/micron
Mass bearing - 6.1 kg
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.
Bearing Handbook for Electric Moto
Bearing Handbook for Electric Motors. The world's best machinery is ... bearing is dropped, it is best not to install it. Store bearings horizontally in a dry ... SKF bearing analysis experts can identify the cause of bearing failure and help you prevent it in the future. 12. The contact between the bearing ring and a properly machined and
Bearing Product Catalog - Scheerer Bearing Corporati
American Roller Bearing AM Andrews Bearing Corp. AND Fafnir Bearing Co. FAF FAG FAG INA INA MRC Bearings MRC Manufacturer Abbreviation New Departure Hyatt NDH Norma-Hoffman NH Ransome Hoffman Pollard LTD RHP Rollway Bearings RWY SKF Bearings SKF The Torrington Company TOR SERIES PAGE SERIES PAGE SERIES PAGE CT 44 RN-1000 7-11 RU-5300 7-10
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.
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.
SKF front wheel bearing hub assemblies - any good? - Bob .
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.
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wheel bearings: Timken/Koyo vs SKF/BCA/Beck etc? | IH8MUD .
Clean it best you can, rinse it out, toss it in the dishwasher? I have a partswasher available. Packing is best done inside a ziplock sandwich bag. Grease and bearing go in, shove grease in one edge 'till it comes out the other all the way around. That's the best bearing packer I know of.