All Product Types > ENGINEERED BEARINGS > Mounted Bearings > Self-Aligning Mounted Tapered Roller Bearings > Type CSA Mounted Tapered Roller Bearings > Type CSA Cartridge Mounted Bearings > Part Number CSA-TRB-1 1/4  

Part Number CSA-TRB-1 1/4, Type CSA Tapered Roller Bearing Cartridge Mounted Bearings

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

Specifications

Shaft Size
1 1/4 in

Shaft Size Type
Imperial

Housing Type
Cartridge


Dimensions

Dimension B 
2-3/4 in
69.9 mm

Dimension A 
1-7/8 in
47.6 mm

Dimension d1 
2 5/62 in
54.8 mm

Dimension C
9/16 in
14.3 mm

Dimension E
2 1/2 in
63.5 mm

Dimension K
2.637 in
66.98 mm

Dimension M
1 13/16 in
46 mm

Dimension H 
21/32 in
16.7 mm


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

e
0.49

X (if Fa/Fr ≤ e)
0.87

Y (if Fa/Fr ≤ e)
1.77

X (if Fa/Fr > e)
0.7

Y (if Fa/Fr > e)
2.14

K Factor
1.23

C90 Dynamic Load Rating1
3810 lbf

C0 Static Load Rating
15760 lbf

Fa-max Maximum Permissible Thrust Load2
2000 lbf

Fr-max Maximum Allowable Slip Fit Radial Load3
3100 lbf

Max. Speed4
4490 rpm
1 C90 is the Dynamic Load Rating based on a rated Life of 90 million revolutions (3000 hrs at 500 RPM).
2 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.
3 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).
4 Timken Double Lip Seal