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All Product Types > ENGINEERED BEARINGS > Cylindrical Roller Bearings > Cylindrical Roller Radial Bearings - Single Row Standard > Part Number 300RU30R4  
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Part Number 300RU30R4, 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

300 mm

Type

NU


Dimensions

D - Outer Diameter

460 mm
18.1102
in

C - Inner Ring Width

118 mm
4.6457
in

B - Outer Ring Width

118 mm
4.6457
in


Basic Load Ratings

C0 - Static Radial Rating

3640000 N
818000
lbf

C - Dynamic Radial Rating1

1990000 N
447000
lbf
1 Based on 1 x 106 L10 life for the ISO life calculation method.


Factors

Reference Thermal Speed Rating (Grease)

600 rpm

Reference Thermal Speed Rating (Oil)1

660 rpm

Cg - Geometry Factor2

0.2049
1 See thermal speed ratings in the engineering section.
2 Geometry constant for Lubrication Life Adjustment Factor a3l.


Abutment and Fillet Dimensions

da - Inner Ring Backing Diameter

330 mm
13.0000
in

Da - Outer Ring Backing Diameter

429 mm
16.9000
in



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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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