NB Linear Systems:SW20 1 1/4" inch Ball Bushings
Bearings
Ball Bearing
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Part Number:
Kit7965
Our Low Price:
$49
Shipping Weight: 1.13 pounds
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SW20:Made in Japan:NB Linear Systems
Nippon Bearing Linear Systems
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Item
Number
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Number of ball circuits
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dr
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D
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L
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B
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W
inch
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D1
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eccentricity
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radial
clearance
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basic load rating
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mass
g
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dr (mm)
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inch
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tolerance inch/µm
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inch
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tolerance inch/µm
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inch
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tolerance inch/µm
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inch
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tolerance inch/µm
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precision
inch/µm
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high
inch/µm
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dynamic
C
N
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static
Co
N
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precision
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high
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SW20
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6
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1.25000 |
0
-.00035
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0
-.00050
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2.0000
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0
-.00075
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2.6250
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0
-.012
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2.0047
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0
-.012
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.0679
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1.8859
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.0005
12
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.0008
20
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-.0003
-8
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1,570
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2,740
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465
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31.750
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SW20 1 1/4" Bore linear motion ball bushings/bearings, SW20 inner
diameter(bore)= 1 1/4" (1.2500") inch dimensions with steel
retainer, high accuracyy grade linear bushings,
series mainly used in the USA,
NB brand (Nippon Bearing Linear Systems), made in Japan.
The NB slide bush is a linear motion mechanism utilizing the rotational motion of ball
elements. Since linear motion is obtained using a simple mechanism, the slide bush can be
used in a wide variety of applications, including transportation equipment, food processing
equipment, and semiconductor equipment. The NB slide bush uses a round shaft for the guide,
resulting in effective space utilization, which allows for compact designs.
The raceway surface is precision ground. Since the contact surface between the ball elements and the
raceway surface is minimized, the NB slide bush provides low friction when compared to other linear motion mechanisms.
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