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NTN 1220 K bearing

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NTN 1220 K Bearing Details:
Bearing Name1220 K
New Model1220K
Old Model111220 bearing
product Model1220K
CategorySelf-aligning Ball Bearings
BrandNTN Bearing
Inner Diameter d ( mm ) 100
Outer Diameter D ( mm )180
Thickness B ( mm )34
NTN 1220 K Bearing   Bearing Size and Drawing:
1220 K
NTN 1220 K Bearing With size alternative model
ModelInner Diameter
d(mm)
Outer Diameter
D(mm)
thickness
B(mm)
BrandType
KOYO 6220-RZ Bearing10018034KOYODeep Groove Ball Bearings
SNR 7220AC Bearing10018034SNRAngular Contact Ball Bearings
NACHI NU 220 E Bearing10018034NACHICylindrical Roller Bearings
FLT NUP220 Bearing10018034FLTCylindrical Roller Bearings
KOYO 7220B Bearing10018034KOYOAngular Contact Ball Bearings
NACHI 6220 Bearing10018034NACHIDeep Groove Ball Bearings
MRC NJ 220 Bearing10018034MRCCylindrical Roller Bearings
TORRINGTON 7220 C Bearing10018034TORRINGTONAngular Contact Ball Bearings
TBS 6220-Z Bearing10018034TBSDeep Groove Ball Bearings
MAC NU 220 Bearing10018034MACCylindrical Roller Bearings

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What are the structural components and design advantages of self-aligning ball bearings?
 
Self-aligning ball bearings consist of an inner ring, an outer ring, two rows of steel balls, and a cage. The outer ring raceway is spherical, and the inner ring has a double-raceway design, providing excellent self-aligning performance. This effectively compensates for alignment errors between the shaft and the housing bore, as well as shaft deflection. They also have low friction and a high limiting speed, making them suitable for applications with installation misalignment or shaft deformation.
 
What are the advantages of self-aligning ball bearings compared to other similar bearings?
 
Compared to deep groove ball bearings, self-aligning ball bearings have self-aligning capabilities, accommodating greater alignment errors and shaft deflection. Compared to spherical roller bearings, they have a higher limiting speed and lower friction, but a lower load capacity, making them more suitable for medium to light load conditions. Compared to cylindrical roller bearings, they can withstand certain axial loads, and their self-aligning performance reduces the requirements for installation precision.
 
What are the applicable occasions and typical applications of self-aligning ball bearings?
 
These bearings are suitable for medium to light load applications where alignment precision requirements are not high and deflection or impact is present. Typical applications include textile machinery, agricultural equipment, conveyor rollers, small fans, crushers, vibrating screens, and woodworking machinery.

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