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Part Number NU340EMA, Cylindrical Roller Radial Bearings - Single Row ISO


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Specifications  · Dimensions  · Basic Load Ratings  · Factors  · Abutment and Fillet Dimensions

Specifications

Design Units

Metric

d - Bore

200 mm

Type

NU


Dimensions

D - Outer Diameter

420 mm
16.5354
in

C - Inner Ring Width

80 mm
3.1496
in

B - Outer Ring Width

80 mm
3.1496
in


Basic Load Ratings

C0 - Static Radial Rating

1580000 N
354000
lbf

C - Dynamic Radial Rating1

1360000 N
306000
lbf
1 Based on 1 X 106 L10 life for the ISO life calculation method.


Factors

Reference Thermal Speed Rating (Grease)

1200 rpm

Reference Thermal Speed Rating (Oil)1

1300 rpm

Cg - Geometry Factor2

0.150
1 See thermal speed ratings in the engineering section.
2 Geometry constant for Lubrication Life Adjustment Factor a3l.


Abutment and Fillet Dimensions

R - Inner Ring "To Clear" Radius1

5 mm
0.200
in

r - Outer Ring "To Clear" Radius2

5 mm
0.200
in

da - Inner Ring Backing Diameter

249.9 mm
9.84
in

Da - Outer Ring Backing Diameter

370 mm
14.57
in
1 Maximum housing fillet radius that bearing corners will clear.
2 Maximum shaft fillet radius that bearing corners will clear.


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·  Cylindrical-Roller-Radial-Bearings---Single-Row-ISO-NU_NJ_NF_NUP



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