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Timken® Self-Aligning Tapered Roller Bearing Mounted Bearings are designed for applications from aggregate and steel to mining and power generation. The heavy duty housing and cartridge are made from cast steel to stand up to the harshest conditions, and are designed to accept +/-4 degrees of misalignment.. Metric sizes also are available in shaft diameters ranging from 35 mm to 125 mm.

Open and Closed end covers available for purchase.
Unit of Measure

Specifications

Shaft Size

 N/A 75 mm

Shaft Size Type

 N/A Metric

Lubrication

 N/A Grease - Premium Industrial

Housing Type

 N/A SAF Self-Aligning

Housing Coating

 N/A Powder Coat

Dimensions

Dimension B 

 N/A 3-11/16 in
Dimension S1 N/A 2-1/4 in

Dimension R

 N/A 1-7/16 in

Dimension L 

 N/A 12-5/8 in

Dimension E

 N/A 4-1/8 in

Dimension A 

 N/A 3-3/4 in

Dimension J Min. 

 N/A 9-7/16 in

Dimension J Max. 

 N/A 11-5/16 in

Bolt Diameter 

 N/A 5/8 in

Dimension N 

 N/A 11/16 in

Dimension N1 

 N/A 1-5/8 in

Dimension N2 

 N/A 2-1/8 in

Dimension H1 

 N/A 1-7/8 in

Dimension H2 

 N/A 7-3/8 in

Dimension d1 

 N/A 4-23/32 in

Dimension H 

 N/A 3-3/4 in

Dimension W 

 N/A 7-1/2 in

Radial and Thrust Factors; Speed and Slip-Fit Load Limits

e

 N/A 0.46

X (if Fa/Fr ≤ e)

 N/A 0.87

Y (if Fa/Fr ≤ e)

 N/A 1.87

X (if Fa/Fr > e)

 N/A 0.7

Y (if Fa/Fr > e)

 N/A 2.26

K Factor

 N/A 1.30
C90 Dynamic Load Rating2 N/A 12300 lbf

C0 Static Load Rating

 N/A 61200 lbf
Fa-max Maximum Permissible Thrust Load3 N/A 5181 lbf
Fr-max Maximum Allowable Slip Fit Radial Load4 N/A 10000 lbf
Max. Speed5 N/A 2060 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 shownare 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 withstrength sufficient to support the load should be added. Never weld the pillow block or bearing to secure it to the shaft or base.
  • 1 Permissible axial displacement from normal position of one bearing ring in relation to the other.
  • 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).
  • 5 Timken Double Lip Seal