Part Number SAFSA-P2B-TRB-1 11/16, Self-Aligning Tapered Roller Bearing Pillow Block: 2-Bolt Base Mounted Bearings On The Timken Company

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All Product Types > ENGINEERED BEARINGS > Mounted Bearings > Self-Aligning Mounted Tapered Roller Bearings > Self-Aligning Tapered Roller Bearing Pillow Block: 2-Bolt Base Mounted Bearings > Part Number SAFSA-P2B-TRB-1 11/16


	Part Number SAFSA-P2B-TRB-1 11/16, Self-Aligning Tapered Roller Bearing Pillow Block: 2-Bolt Base Mounted Bearings

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 90 mm.

Open and Closed end covers available for purchase.

Type-ESA-Pillow-Block-2-Bolt-Base-Bearing

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Unit of Measure: Imperial Metric Both

Specifications · Dimensions · Radial and Thrust Factors; Speed and Slip-Fit Load Limits · Note

Specifications

Shaft Size		1 11/16 in

Shaft Size Type		Imperial

Lubrication		Grease - Premium Industrial

Housing Type		SAF Self-Aligning

Housing Coating		Powder Coat

Dimensions

Dimension B		3-1/2 in

Dimension L		8-1/4 in

Dimension A		2-3/8 in

Dimension J Min.		6-1/4 in

Dimension J Max.		7 in

Bolt Diameter		1/2 in

Dimension N		9/16 in

Dimension N₁		15/16 in

Dimension H₁		1-1/8 in

Dimension H₂		5-1/32 in

Dimension d₁		3-7/16 in

Dimension H		2-1/2 in

Dimension W		5-1/8 in

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

e

0.44

X (if F_a/F_r ≤ e)

0.87

Y (if F_a/F_r ≤ e)

1.96

X (if F_a/F_r > e)

0.7

Y (if F_a/F_r > e)

2.37

K Factor

1.36

C₉₀ Dynamic Load Rating¹

7860 lbf

C₀ Static Load Rating

33000 lbf

F_a-max Maximum Permissible Thrust Load²

2590 lbf

F_r-max Maximum Allowable Slip Fit Radial Load³

6400 lbf

Max. Speed⁴

3320 rpm

¹ C₉₀ is the Dynamic Load Rating based on a rated Life of 90 million revolutions (3000 hrs at 500 RPM).
² F_a-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.
³ If the application loads approach or exceed F_r-max, the shaft fit should be adjusted to a line-to-line (g6 or h6) or light press fit (m6).
⁴ Timken Double Lip Seal

Note

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.

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Part Number SAFSA-P2B-TRB-1 11/16, Self-Aligning Tapered Roller Bearing Pillow Block: 2-Bolt Base Mounted Bearings

Shaft Size

Shaft Size Type

Lubrication

Housing Type

Housing Coating

Dimension B

Dimension L

Dimension A

Dimension J Min.

Dimension J Max.

Bolt Diameter

Dimension N

Dimension N1

Dimension H1

Dimension H2

Dimension d1

Dimension H

Dimension W

e

X (if Fa/Fr ≤ e)

Y (if Fa/Fr ≤ e)

X (if Fa/Fr > e)

Y (if Fa/Fr > e)

K Factor

C90 Dynamic Load Rating1

C0 Static Load Rating

Fa-max Maximum Permissible Thrust Load2

Fr-max Maximum Allowable Slip Fit Radial Load3

Max. Speed4

Dimension N₁

Dimension H₁

Dimension H₂

Dimension d₁