Tapered Roller Bearings - TS (Tapered Single) Imperial On The Timken Company

This is the most basic and most widely used type of tapered roller bearing. It consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft.

Part Number	Series	d - Bore	D - Cup Outer Diameter	B - Cone Width	C - Cup Width	T - Bearing Width	C1 - Dynamic Radial Rating (1 million revolutions)	C0 - Static Radial Rating	CAD
25570 - 25521	N/A 25500	N/A 1 7/16 in36.513 mm	N/A 3.2700 in83.058 mm	N/A 1.0000 in25.400 mm	N/A 0.7500 in19.050 mm	N/A 0.9376 in23.815 mm	N/A 20300 lbf90500 N	N/A 24900 lbf111000 N	N/A
25570 - 25522	N/A 25500	N/A 1 7/16 in36.513 mm	N/A 3.2700 in83.058 mm	N/A 1.0000 in25.400 mm	N/A 0.7525 in19.114 mm	N/A 0.9401 in23.879 mm	N/A 20300 lbf90500 N	N/A 24900 lbf111000 N	N/A
25570 - 25523	N/A 25500	N/A 1 7/16 in36.513 mm	N/A 3.2650 in82.931 mm	N/A 1.0000 in25.400 mm	N/A 0.8750 in22.225 mm	N/A 1.0626 in26.990 mm	N/A 20300 lbf90500 N	N/A 24900 lbf111000 N	N/A
25570 - 25524	N/A 25500	N/A 1 7/16 in36.513 mm	N/A 3.2650 in82.931 mm	N/A 1.0000 in25.400 mm	N/A 0.7500 in19.050 mm	N/A 0.9376 in23.815 mm	N/A 20300 lbf90500 N	N/A 24900 lbf111000 N	N/A
25570 - 25526	N/A 25500	N/A 1 7/16 in36.513 mm	N/A 3.3465 in85.001 mm	N/A 1.0000 in25.400 mm	N/A 0.7500 in19.050 mm	N/A 0.9376 in23.815 mm	N/A 20300 lbf90500 N	N/A 24900 lbf111000 N	N/A
25570 - 25527	N/A 25500	N/A 1 7/16 in36.513 mm	N/A 3.3465 in85.001 mm	N/A 1.0000 in25.400 mm	N/A 0.8750 in22.225 mm	N/A 1.0626 in26.990 mm	N/A 20300 lbf90500 N	N/A 24900 lbf111000 N	N/A
25570 - 25528	N/A 25500	N/A 1 7/16 in36.513 mm	N/A 3.6250 in92.075 mm	N/A 1.0000 in25.400 mm	N/A 0.7500 in19.050 mm	N/A 0.9376 in23.815 mm	N/A 20300 lbf90500 N	N/A 24900 lbf111000 N	N/A
25570 - 25530RB	N/A 25500	N/A 1 7/16 in36.513 mm	N/A 3.3125 in84.138 mm	N/A 1.0000 in25.400 mm	N/A 0.7500 in19.050 mm	N/A 0.9376 in23.815 mm	N/A 20300 lbf90500 N	N/A 24900 lbf111000 N	N/A
25570 - 25547RB	N/A 25500	N/A 1 7/16 in36.513 mm	N/A 3.9368 in99.995 mm	N/A 1.0000 in25.400 mm	N/A 0.8125 in20.638 mm	N/A 1.0001 in25.403 mm	N/A 20300 lbf90500 N	N/A 24900 lbf111000 N	N/A
26877 - 26820	N/A 26800	N/A 1 7/16 in36.513 mm	N/A 3.1562 in80.167 mm	N/A 1.0000 in25.400 mm	N/A 0.8125 in20.638 mm	N/A 1.0000 in25.400 mm	N/A 20500 lbf91100 N	N/A 24800 lbf110000 N	N/A
26877 - 26821	N/A 26800	N/A 1 7/16 in36.513 mm	N/A 3.1562 in80.167 mm	N/A 1.0000 in25.400 mm	N/A 0.9688 in24.608 mm	N/A 1.1564 in29.373 mm	N/A 20500 lbf91100 N	N/A 24800 lbf110000 N	N/A
26877 - 26822	N/A 26800	N/A 1 7/16 in36.513 mm	N/A 3.1250 in79.375 mm	N/A 1.0000 in25.400 mm	N/A 0.7500 in19.050 mm	N/A 0.9376 in23.815 mm	N/A 20500 lbf91100 N	N/A 24800 lbf110000 N	N/A
26877 - 26822A	N/A 26800	N/A 1 7/16 in36.513 mm	N/A 3.1250 in79.375 mm	N/A 1.0000 in25.400 mm	N/A 0.7500 in19.050 mm	N/A 0.9376 in23.815 mm	N/A 20500 lbf91100 N	N/A 24800 lbf110000 N	N/A
26877 - 26823	N/A 26800	N/A 1 7/16 in36.513 mm	N/A 3 in76.2 mm	N/A 1.0000 in25.400 mm	N/A 0.8125 in20.638 mm	N/A 1.0001 in25.403 mm	N/A 20500 lbf91100 N	N/A 24800 lbf110000 N	N/A
26877 - 26824	N/A 26800	N/A 1 7/16 in36.513 mm	N/A 3.1496 in80 mm	N/A 1.0000 in25.400 mm	N/A 0.7500 in19.050 mm	N/A 0.9375 in23.813 mm	N/A 20500 lbf91100 N	N/A 24800 lbf110000 N	N/A
26877 - 26830	N/A 26800	N/A 1 7/16 in36.513 mm	N/A 3.1562 in80.167 mm	N/A 1.0000 in25.400 mm	N/A 0.8125 in20.638 mm	N/A 1.0001 in25.403 mm	N/A 20500 lbf91100 N	N/A 24800 lbf110000 N	N/A
31597 - 31520	N/A 31500	N/A 1 7/16 in36.513 mm	N/A 3 in76.2 mm	N/A 1.1250 in28.575 mm	N/A 0.9375 in23.813 mm	N/A 1.1563 in29.370 mm	N/A 21300 lbf94700 N	N/A 24100 lbf107000 N	N/A
31597 - 31521	N/A 31500	N/A 1 7/16 in36.513 mm	N/A 3 in76.2 mm	N/A 1.1250 in28.575 mm	N/A 0.9375 in23.813 mm	N/A 1.1563 in29.370 mm	N/A 21300 lbf94700 N	N/A 24100 lbf107000 N	N/A
31597 - 31523RB	N/A 31500	N/A 1 7/16 in36.513 mm	N/A 3.1250 in79.375 mm	N/A 1.1250 in28.575 mm	N/A 0.9375 in23.813 mm	N/A 1.1563 in29.370 mm	N/A 21300 lbf94700 N	N/A 24100 lbf107000 N	N/A
3479 - 3420	N/A 3400	N/A 1 7/16 in36.513 mm	N/A 3.1250 in79.375 mm	N/A 1.1721 in29.771 mm	N/A 0.9375 in23.813 mm	N/A 1.1563 in29.370 mm	N/A 23500 lbf105000 N	N/A 26800 lbf119000 N	N/A
3479 - 3422	N/A 3400	N/A 1 7/16 in36.513 mm	N/A 3.1562 in80.167 mm	N/A 1.1721 in29.771 mm	N/A 0.9375 in23.813 mm	N/A 1.1563 in29.370 mm	N/A 23500 lbf105000 N	N/A 26800 lbf119000 N	N/A
3479 - 3426	N/A 3400	N/A 1 7/16 in36.513 mm	N/A 3.1230 in79.324 mm	N/A 1.1721 in29.771 mm	N/A 0.9375 in23.813 mm	N/A 1.1563 in29.370 mm	N/A 23500 lbf105000 N	N/A 26800 lbf119000 N	N/A
3479 - 3431	N/A 3400	N/A 1 7/16 in36.513 mm	N/A 3.2500 in82.550 mm	N/A 1.1721 in29.771 mm	N/A 0.9375 in23.813 mm	N/A 1.1563 in29.370 mm	N/A 23500 lbf105000 N	N/A 26800 lbf119000 N	N/A
3878 - 3820	N/A 3800	N/A 1 7/16 in36.513 mm	N/A 3.3750 in85.725 mm	N/A 1.1875 in30.163 mm	N/A 0.9375 in23.813 mm	N/A 1.1875 in30.163 mm	N/A 27900 lbf124000 N	N/A 33200 lbf148000 N	N/A
3878A - 3820	N/A 3800	N/A 1 7/16 in36.513 mm	N/A 3.3750 in85.725 mm	N/A 1.1875 in30.163 mm	N/A 0.9375 in23.813 mm	N/A 1.1875 in30.163 mm	N/A 27900 lbf124000 N	N/A 33200 lbf148000 N	N/A

Part Number

Series

d - Bore

D - Cup Outer Diameter

B - Cone Width

C - Cup Width

T - Bearing Width

C1 - Dynamic Radial Rating (1 million revolutions)

C0 - Static Radial Rating

CAD

25570 - 25521

N/A 25500

N/A 1 7/16 in36.513 mm

N/A 3.2700 in83.058 mm

N/A 1.0000 in25.400 mm

N/A 0.7500 in19.050 mm

N/A 0.9376 in23.815 mm

N/A 20300 lbf90500 N

N/A 24900 lbf111000 N

N/A

25570 - 25522

N/A 25500

N/A 1 7/16 in36.513 mm

N/A 3.2700 in83.058 mm

N/A 1.0000 in25.400 mm

N/A 0.7525 in19.114 mm

N/A 0.9401 in23.879 mm

N/A 20300 lbf90500 N

N/A 24900 lbf111000 N

N/A

25570 - 25523

N/A 25500

N/A 1 7/16 in36.513 mm

N/A 3.2650 in82.931 mm

N/A 1.0000 in25.400 mm

N/A 0.8750 in22.225 mm

N/A 1.0626 in26.990 mm

N/A 20300 lbf90500 N

N/A 24900 lbf111000 N

N/A

25570 - 25524

N/A 25500

N/A 1 7/16 in36.513 mm

N/A 3.2650 in82.931 mm

N/A 1.0000 in25.400 mm

N/A 0.7500 in19.050 mm

N/A 0.9376 in23.815 mm

N/A 20300 lbf90500 N

N/A 24900 lbf111000 N

N/A

25570 - 25526

N/A 25500

N/A 1 7/16 in36.513 mm

N/A 3.3465 in85.001 mm

N/A 1.0000 in25.400 mm

N/A 0.7500 in19.050 mm

N/A 0.9376 in23.815 mm

N/A 20300 lbf90500 N

N/A 24900 lbf111000 N

N/A

25570 - 25527

N/A 25500

N/A 1 7/16 in36.513 mm

N/A 3.3465 in85.001 mm

N/A 1.0000 in25.400 mm

N/A 0.8750 in22.225 mm

N/A 1.0626 in26.990 mm

N/A 20300 lbf90500 N

N/A 24900 lbf111000 N

N/A

25570 - 25528

N/A 25500

N/A 1 7/16 in36.513 mm

N/A 3.6250 in92.075 mm

N/A 1.0000 in25.400 mm

N/A 0.7500 in19.050 mm

N/A 0.9376 in23.815 mm

N/A 20300 lbf90500 N

N/A 24900 lbf111000 N

N/A

25570 - 25530RB

N/A 25500

N/A 1 7/16 in36.513 mm

N/A 3.3125 in84.138 mm

N/A 1.0000 in25.400 mm

N/A 0.7500 in19.050 mm

N/A 0.9376 in23.815 mm

N/A 20300 lbf90500 N

N/A 24900 lbf111000 N

N/A

25570 - 25547RB

N/A 25500

N/A 1 7/16 in36.513 mm

N/A 3.9368 in99.995 mm

N/A 1.0000 in25.400 mm

N/A 0.8125 in20.638 mm

N/A 1.0001 in25.403 mm

N/A 20300 lbf90500 N

N/A 24900 lbf111000 N

N/A

26877 - 26820

N/A 26800

N/A 1 7/16 in36.513 mm

N/A 3.1562 in80.167 mm

N/A 1.0000 in25.400 mm

N/A 0.8125 in20.638 mm

N/A 1.0000 in25.400 mm

N/A 20500 lbf91100 N

N/A 24800 lbf110000 N

N/A

26877 - 26821

N/A 26800

N/A 1 7/16 in36.513 mm

N/A 3.1562 in80.167 mm

N/A 1.0000 in25.400 mm

N/A 0.9688 in24.608 mm

N/A 1.1564 in29.373 mm

N/A 20500 lbf91100 N

N/A 24800 lbf110000 N

N/A

26877 - 26822

N/A 26800

N/A 1 7/16 in36.513 mm

N/A 3.1250 in79.375 mm

N/A 1.0000 in25.400 mm

N/A 0.7500 in19.050 mm

N/A 0.9376 in23.815 mm

N/A 20500 lbf91100 N

N/A 24800 lbf110000 N

N/A

26877 - 26822A

N/A 26800

N/A 1 7/16 in36.513 mm

N/A 3.1250 in79.375 mm

N/A 1.0000 in25.400 mm

N/A 0.7500 in19.050 mm

N/A 0.9376 in23.815 mm

N/A 20500 lbf91100 N

N/A 24800 lbf110000 N

N/A

26877 - 26823

N/A 26800

N/A 1 7/16 in36.513 mm

N/A 3 in76.2 mm

N/A 1.0000 in25.400 mm

N/A 0.8125 in20.638 mm

N/A 1.0001 in25.403 mm

N/A 20500 lbf91100 N

N/A 24800 lbf110000 N

N/A

26877 - 26824

N/A 26800

N/A 1 7/16 in36.513 mm

N/A 3.1496 in80 mm

N/A 1.0000 in25.400 mm

N/A 0.7500 in19.050 mm

N/A 0.9375 in23.813 mm

N/A 20500 lbf91100 N

N/A 24800 lbf110000 N

N/A

26877 - 26830

N/A 26800

N/A 1 7/16 in36.513 mm

N/A 3.1562 in80.167 mm

N/A 1.0000 in25.400 mm

N/A 0.8125 in20.638 mm

N/A 1.0001 in25.403 mm

N/A 20500 lbf91100 N

N/A 24800 lbf110000 N

N/A

31597 - 31520

N/A 31500

N/A 1 7/16 in36.513 mm

N/A 3 in76.2 mm

N/A 1.1250 in28.575 mm

N/A 0.9375 in23.813 mm

N/A 1.1563 in29.370 mm

N/A 21300 lbf94700 N

N/A 24100 lbf107000 N

N/A

31597 - 31521

N/A 31500

N/A 1 7/16 in36.513 mm

N/A 3 in76.2 mm

N/A 1.1250 in28.575 mm

N/A 0.9375 in23.813 mm

N/A 1.1563 in29.370 mm

N/A 21300 lbf94700 N

N/A 24100 lbf107000 N

N/A

31597 - 31523RB

N/A 31500

N/A 1 7/16 in36.513 mm

N/A 3.1250 in79.375 mm

N/A 1.1250 in28.575 mm

N/A 0.9375 in23.813 mm

N/A 1.1563 in29.370 mm

N/A 21300 lbf94700 N

N/A 24100 lbf107000 N

N/A

3479 - 3420

N/A 3400

N/A 1 7/16 in36.513 mm

N/A 3.1250 in79.375 mm

N/A 1.1721 in29.771 mm

N/A 0.9375 in23.813 mm

N/A 1.1563 in29.370 mm

N/A 23500 lbf105000 N

N/A 26800 lbf119000 N

N/A

3479 - 3422

N/A 3400

N/A 1 7/16 in36.513 mm

N/A 3.1562 in80.167 mm

N/A 1.1721 in29.771 mm

N/A 0.9375 in23.813 mm

N/A 1.1563 in29.370 mm

N/A 23500 lbf105000 N

N/A 26800 lbf119000 N

N/A

3479 - 3426

N/A 3400

N/A 1 7/16 in36.513 mm

N/A 3.1230 in79.324 mm

N/A 1.1721 in29.771 mm

N/A 0.9375 in23.813 mm

N/A 1.1563 in29.370 mm

N/A 23500 lbf105000 N

N/A 26800 lbf119000 N

N/A

3479 - 3431

N/A 3400

N/A 1 7/16 in36.513 mm

N/A 3.2500 in82.550 mm

N/A 1.1721 in29.771 mm

N/A 0.9375 in23.813 mm

N/A 1.1563 in29.370 mm

N/A 23500 lbf105000 N

N/A 26800 lbf119000 N

N/A

3878 - 3820

N/A 3800

N/A 1 7/16 in36.513 mm

N/A 3.3750 in85.725 mm

N/A 1.1875 in30.163 mm

N/A 0.9375 in23.813 mm

N/A 1.1875 in30.163 mm

N/A 27900 lbf124000 N

N/A 33200 lbf148000 N

N/A

3878A - 3820

N/A 3800

N/A 1 7/16 in36.513 mm

N/A 3.3750 in85.725 mm

N/A 1.1875 in30.163 mm

N/A 0.9375 in23.813 mm

N/A 1.1875 in30.163 mm

N/A 27900 lbf124000 N

N/A 33200 lbf148000 N

N/A