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 7/8  

Part Number CSA-TRB-1 7/8, 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 7/8 in

Shaft Size Type
Imperial

Housing Type
Cartridge


Dimensions

Dimension B 
3-1/2 in
88.9 mm

Dimension A 
2-1/2 in
63.5 mm

Dimension d1 
3 11/32 in
84.9 mm

Dimension C
13/16 in
20.6 mm

Dimension E
3-3/4 in
95.3 mm

Dimension K
3.965 in
100.71 mm

Dimension M
2 13/32 in
61.1 mm

Dimension H 
21/32 in
16.7 mm


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

e
0.33

X (if Fa/Fr ≤ e)
0.87

Y (if Fa/Fr ≤ e)
2.64

X (if Fa/Fr > e)
0.7

Y (if Fa/Fr > e)
3.18

K Factor
1.83

C90 Dynamic Load Rating1
10300 lbf

C0 Static Load Rating
43000 lbf

Fa-max Maximum Permissible Thrust Load2
2590 lbf

Fr-max Maximum Allowable Slip Fit Radial Load3
8400 lbf

Max. Speed4
3050 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