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Part Number 180RN91R3, Cylindrical Roller Radial Bearings - Single Row Standard


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

Specifications

Design Units

Metric

d - Bore

180 mm

Type

N


Dimensions

D - Outer Diameter

280 mm
11.0236
in

C - Inner Ring Width

82.55 mm
3.2500
in

B - Outer Ring Width

82.55 mm
3.2500
in


Basic Load Ratings

C0 - Static Radial Rating

1440000 N
323000
lbf

C - Dynamic Radial Rating1

833000 N
187000
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

1400 rpm

Cg - Geometry Factor2

0.142
1 See thermal speed ratings in the engineering section.
2 Geometry constant for Lubrication Life Adjustment Factor a3l.


Abutment and Fillet Dimensions

r - Outer Ring "To Clear" Radius1

2.5 mm
0.1
in

da - Inner Ring Backing Diameter

196.9 mm
7.7500
in

Da - Outer Ring Backing Diameter

261.9 mm
10.3100
in
1 Maximum shaft fillet radius that bearing corners will clear.



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