Part Number CSA-TRB-55MM, Type CSA Tapered Roller Bearing Cartridge Mounted Bearings On The Timken Company

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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-55MM


	Part Number CSA-TRB-55MM, Type CSA Tapered Roller Bearing Cartridge Mounted Bearings

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Unit of Measure: Imperial Metric Both

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

Specifications

Shaft Size		55 mm

Shaft Size Type		Metric

Housing Type		Cartridge

Dimensions

Dimension B		3 3/4 in 95.3 mm

Dimension A		2 5/8 in 66.7 mm

Dimension d₁		3 3/4 in 95.3 mm

Dimension C		27/32 in 21.4 mm

Dimension E		4 7/32 in 107.2 mm

Dimension K		4.438 in 112.73 mm

Dimension M		2 5/8 in 66.7 mm

Dimension H		21/32 in 16.7 mm

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

e

0.36

X (if F_a/F_r ≤ e)

0.87

Y (if F_a/F_r ≤ e)

2.38

X (if F_a/F_r > e)

0.7

Y (if F_a/F_r > e)

2.87

K Factor

1.65

C₉₀ Dynamic Load Rating¹

10900 lbf

C₀ Static Load Rating

48200 lbf

F_a-max Maximum Permissible Thrust Load²

3454 lbf

F_r-max Maximum Allowable Slip Fit Radial Load³

8900 lbf

Max. Speed⁴

2730 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

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	Tapered Roller Bearings - 2TS (Matched Bearing Assembly)

Part Number CSA-TRB-55MM, Type CSA Tapered Roller Bearing Cartridge Mounted Bearings

Shaft Size

Shaft Size Type

Housing Type

Dimension B

Dimension A

Dimension d1

Dimension C

Dimension E

Dimension K

Dimension M

Dimension H

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 d₁