The Timken Company - Single Collar - Type E Flange: 4-Bolt Bearing

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Type E tapered roller bearing Mounted Bearings are available in a wide variety of sizes and configurations to meet the requirements of demanding applications. Popular part numbers are in stock for immediate availability. Metric sizes also are available in shaft diameters ranging from 35 mm to 125 mm.

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Unit of Measure

Items	E-4BFA-TRB-1 3/16 Single Collar - Type E Flange: 4-Bolt Bearing	E-4BFA-TRB-1 1/4 Single Collar - Type E Flange: 4-Bolt Bearing	E-4BFA-TRB-1 3/8 Single Collar - Type E Flange: 4-Bolt Bearing	E-4BFA-TRB-35MM Single Collar - Type E Flange: 4-Bolt Bearing	E-4BFA-TRB-1 7/16 Single Collar - Type E Flange: 4-Bolt Bearing
Shaft Size	N/A 1 3/16 in	N/A 1 1/4 in	N/A 1 3/8 in	N/A 35 mm	N/A 1 7/16 in
Shaft Size Type	N/A Imperial	N/A Imperial	N/A Imperial	N/A Metric	N/A Imperial
Dimension B	N/A 2-3/8 in	N/A 2-3/8 in	N/A 2-17/32 in	N/A 2-17/32 in	N/A 2-17/32 in
Dimension L	N/A 3-3/4 in	N/A 3-3/4 in	N/A 4 5/8 in	N/A 4 5/8 in	N/A 4 5/8 in
Dimension A	N/A 2-11/32 in	N/A 2-11/32 in	N/A 2-19/32 in	N/A 2-19/32 in	N/A 2-19/32 in
Dimension J	N/A 2 7/8 in	N/A 2 7/8 in	N/A 3 1/2 in	N/A 3 1/2 in	N/A 3 1/2 in
Dimension A₂	N/A 7/16 in	N/A 7/16 in	N/A 17/32 in	N/A 17/32 in	N/A 17/32 in
Bolt Diameter	N/A 3/8 in	N/A 3/8 in	N/A 1/2 in	N/A 1/2 in	N/A 1/2 in
Dimension A₁	N/A 1 in	N/A 1 in	N/A 1-1/16 in	N/A 1-1/16 in	N/A 1-1/16 in
Dimension D ¹	N/A 2-15/16 in	N/A 2-15/16 in	N/A 3 1/2 in	N/A 3 1/2 in	N/A 3 1/2 in
Dimension d₁	N/A 2-1/4 in	N/A 2-1/4 in	N/A 2-3/4 in	N/A 2-3/4 in	N/A 2-3/4 in
Dimension A_c	N/A
Dimension d₂	N/A
e	N/A 0.49	N/A 0.49	N/A 0.46	N/A 0.46	N/A 0.46
X (if F_a/F_r ≤ e)	N/A 0.87
Y (if F_a/F_r ≤ e)	N/A 1.77	N/A 1.77	N/A 1.89	N/A 1.89	N/A 1.89
X (if F_a/F_r > e)	N/A 0.7
Y (if F_a/F_r > e)	N/A 2.14	N/A 2.14	N/A 2.28	N/A 2.28	N/A 2.28
K Factor	N/A 1.23	N/A 1.23	N/A 1.31	N/A 1.31	N/A 1.31
C₉₀ Dynamic Load Rating²	N/A 3810 lbf	N/A 3810 lbf	N/A 6100 lbf	N/A 6100 lbf	N/A 6100 lbf
C₀ Static Load Rating	N/A 15760 lbf	N/A 15760 lbf	N/A 26000 lbf	N/A 26000 lbf	N/A 26000 lbf
F_a-max Maximum Permissible Thrust Load³	N/A 2000 lbf	N/A 2000 lbf	N/A 2590 lbf	N/A 2590 lbf	N/A 2590 lbf
F_r-max Maximum Allowable Slip Fit Radial Load⁴	N/A 3100 lbf	N/A 3100 lbf	N/A 5000 lbf	N/A 5000 lbf	N/A 5000 lbf
Max. Speed⁵	N/A 4490 rpm	N/A 4490 rpm	N/A 3820 rpm	N/A 3820 rpm	N/A 3820 rpm
UPC Code	N/A
Type E Open Cover Number	N/A
Type E Closed Cover Number	N/A
Lubrication	N/A Grease - Premium Industrial
Housing Coating	N/A E-Coat
Weight	N/A 4 lb	N/A 4 lb	N/A 7 lb	N/A 7 lb	N/A 7 lb
¹ Tolerance +.000 /-.002 in ² C₉₀ is the Dynamic Load Rating based on a rated Life of 90 million revolutions (3000 hrs at 500 RPM). ³ 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. ⁴ 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). ⁵ Timken Double Lip Seal