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All Product Types > ENGINEERED BEARINGS > Cylindrical Roller Bearings > Cylindrical Roller Radial Bearings - Single Row Standard > Part Number 320RU30OC1175R4  
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Part Number 320RU30OC1175R4, Cylindrical Roller Radial Bearings - Single Row Standard







Unit of Measure: Imperial Metric Both

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

Specifications

Design Units

Metric

d - Bore

320.000 mm

Type

NU


Dimensions

D - Outer Diameter

480 mm
18.8976
in

C - Inner Ring Width

121 mm
4.7638
in

B - Outer Ring Width

121 mm
4.7638
in


Basic Load Ratings

C0 - Static Radial Rating

3990000 N
897000
lbf

C - Dynamic Radial Rating1

2110000 N
474000
lbf
1 Based on 1 x 106 L10 life for the ISO life calculation method.


Factors

Reference Thermal Speed Rating (Grease)

550 rpm

Reference Thermal Speed Rating (Oil)1

610 rpm

Cg - Geometry Factor2

0.2149
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

4 mm
0.200
in

r - Outer Ring "To Clear" Radius2

4 mm
0.200
in

da - Inner Ring Backing Diameter

347 mm
13.7000
in

Da - Outer Ring Backing Diameter

453 mm
17.8000
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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Bearing Life Calculation Tool

Bearing Dimensional Tolerances

Tools and Guides for Engineers

Catalog and Technical Information - Cylindrical Roller Bearings


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