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Deep Groove Ball Bearings
Angular Contact Ball Bearings
Special Environment Ball Bearings
Thrust Ball Bearings
Self-Aligning Ball Bearings
Spherical Roller Bearings
Tapered Roller Bearings
Cylindrical Roller Bearings
Needle Roller Bearings
Oil Seals
Semiconductor/FPD/
High-performance Film
Construction/Transportation/
Agricultural Machinery
Machine Tools
Renewable Energy
Steel Production Equipment
Automotive
Medical Equipment
Aircraft
Railroad Cars
Office/Home/Leisure
Download Catalogs
Repairs/replacement parts
Download CAD/
technical calculation
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Inquiries about purchase
Inquiries about
technical trouble/repair
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Product information
Super Precision Bearings
Cylindrical Roller Bearings
Product
1
Super Precision Bearings
Cylindrical Roller Bearings
Super Precision Bearings
Cylindrical Roller Bearings
Standard type
All
Select Classification details
Non-contact sealed 2RU
Shielded ZZ
Contact sealed 2RS
Open type
Dimensions
Imperial (inch)
Metric (mm)
Bore diameter
Range
≤ d ≤
Exact
d =
Width
Range
≤ B ≤
Exact
B =
Outside diameter
Range
≤ D ≤
Exact
D =
21～23
/23
Super Precision Bearings
Cylindrical Roller Bearings
Standard type
All
Bearing No.
W
SD
RA
R
ORDER
MDA
MASS
M
LO
NN3920MBKR
Technical calculation tools
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...
...
1
...
NN...
...
1...
4
...
NN3921MBKR
Technical calculation tools
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...
...
1
...
NN...
...
1...
4
...
NN3920MB
Technical calculation tools
Contact Now
...
...
1
...
NN...
...
1...
4
...
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Cylindrical Roller Bearings
Double-Row Cylindrical Roller Bearings / Stiffness series
Double-Row Cylindrical Roller Bearings / Low Heat series
Single-Row Cylindrical Roller Bearings / Standard series
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