Type E tapered roller bearing Mounted Bearings are available in a wide variety of sizes and
configurations to meet the requirements of demanding applications. Popular part numbers are in
stock for immediate availability. Metric sizes also are available in shaft diameters ranging from
35 mm to 125 mm.
Radial and Thrust Factors; Speed and Slip-Fit Load Limits
e
N/A0.49
X (if Fa/Fr ≤ e)
N/A0.87
Y (if Fa/Fr ≤ e)
N/A1.77
X (if Fa/Fr > e)
N/A0.7
Y (if Fa/Fr > e)
N/A2.14
K Factor
N/A1.23
C90 Dynamic Load Rating2
N/A3810 lbf
C0 Static Load Rating
N/A15760 lbf
Fa-max Maximum Permissible Thrust Load3
N/A2000 lbf
Fr-max Maximum Allowable Slip Fit Radial Load4
N/A3100 lbf
Max. Speed5
N/A4490 rpm
Note
Note
N/A Note: All units have a 1/8" pipe thread grease fitting
The Maximum Permissible Thrust Load applies to conditions of slip fit with set screw mounting or in applications where a large moment loading occurs. The values shown
are valid only when two collars and set screws are used.
When heavy thrust forces are applied, the friction between the pillow block base may not be sufficient to prevent movement. Mechanical stops or shear bars with
strength sufficient to support the load should be added. Never weld the pillow block or bearing to secure it to the shaft or base.
1 Tolerance +.000 /-.002 in
2 C90 is the Dynamic Load Rating based on a rated Life of 90 million revolutions (3000 hrs at 500 RPM).
3 Fa-max is based on the limits of the holding force of two properly tightened collars and set screws. Fifty percent of the values should be used when a single collar is installed.
4 If the application loads approach or exceed Fr-max, the shaft fit should be adjusted to a line-to-line (g6 or h6) or light press fit (m6).