Bearing Calculator Dialog Box

The Bearing Calculator dialog box calculates bearing capacity ratings and basic life values.

To display this dialog box:

Click Bearing Calculator (Toolbox toolbar) or Toolbox > Bearing Calculator.

Bearing Type

Sketch Shows a sketch of the selected bearing type.
Standard  
Bearing Type  
Bearing  

Units

Specifies the property units. Select US (English) or SI (metric).

Reliability

Specifies the desired non-failure rate for the selected bearing, which is used in the basic life calculation.

Capacity

Specifies how the capacity is determined. Select Calculated to have Bearing Calculator calculate the capacity or Rated if you know the capacity.

Bore Specifies the bore size.
OD Specifies the outer diameter.
# Balls Ball bearings only. Specifies the number of balls.
Ball Diameter Ball bearings only. Specifies the ball diameter.
# Rollers Roller bearings only. Specifies the number of rollers.
Roller Diameter Roller bearings only. Specifies the roller diameter.
Capacity Specifies the capacity. If you selected Rated, enter a value. If you selected Calculated, click Solve Capacity.
Solve Capacity Calculates the capacity.

Load

Equivalent Load Specifies the combined radial and thrust loads for the bearing.

Basic Life

Life in Revs Specifies the life of the bearing in millions of revolutions. Bearing Calculator calculates this value when you click Solve Life.
Speed Specifies the speed in revolutions per minute. Enter a value to calculate Life in hours.
Life in hours Specifies the life of the bearing in hours. Bearing Calculator calculates this value when you click Solve Life.
Solve Life Calculates Life in Revs and, if Speed is specified, Life in hours.