Tapered Roller Bearings - Double Tapered Cup - Imperial On The Timken Company

Find Your Nearest Timken Sales Office or Authorized Distributor

Our locator tool helps you connect with the right Timken partner quickly. Registered users
can save their nearest Timken Sales office or distributor in their dashboard.

Try the Locator Tool

Analyze Bearing Performance in an Application with Timken ^® Syber ^® Bearing System Designer

A powerful software tool that combines calculators and configurators to assist you with application design, bearing selection, installation, and troubleshooting. It’s free, easy-to-use, and accessible 24/7.

Learn More

Explore Timken Engineering Tools
Videos on YouTube

Check out our Engineering Tools video playlist on YouTube. These short walkthroughs
help you navigate Timken calculation tools, selection guides and digital resources.

View the Full Playlist

Part Number	Series	D - Cup Outer Diameter	C - Double Cup Width	CAD
78549D	N/A 78000C	N/A 5.5 in139.7 mm	N/A 2.0395 in51.803 mm	N/A
78549DC	N/A 78000	N/A 5.5 in139.7 mm	N/A 2.0395 in51.803 mm	N/A
78551DF	N/A 78000	N/A 5.5100 in139.954 mm	N/A 2.0395 in51.803 mm	N/A
790223D	N/A 790000	N/A 22.0000 in558.800 mm	N/A 8.75 in222.25 mm	N/A
792CD	N/A 795	N/A 8.1250 in206.375 mm	N/A 3.25 in82.55 mm	N/A
793DE	N/A 795	N/A 8.1250 in206.375 mm	N/A 3.25 in82.55 mm	N/A
81963CD	N/A 81000	N/A 9.6250 in244.475 mm	N/A 3.125 in79.375 mm	N/A
820161CD	N/A 820000	N/A 16.0000 in406.400 mm	N/A 5.8125 in147.638 mm	N/A
822176CD	N/A 822000	N/A 17.5 in444.5 mm	N/A 4.5 in114.3 mm	N/A
822176D	N/A 822000	N/A 17.5 in444.5 mm	N/A 4.5 in114.3 mm	N/A
822176DC	N/A 822000	N/A 17.5 in444.5 mm	N/A 4.5 in114.3 mm	N/A
82620D	N/A 82600	N/A 11.0000 in279.400 mm	N/A 3.8125 in96.838 mm	N/A
82622D	N/A 82600	N/A 10.7500 in273.050 mm	N/A 3.8125 in96.838 mm	N/A
82932D	N/A 82000	N/A 9.3125 in236.538 mm	N/A 4.1875 in106.363 mm	N/A
82932DC	N/A 82000	N/A 9.3125 in236.538 mm	N/A 4.1875 in106.363 mm	N/A
82951CD	N/A 82000	N/A 9.5 in241.3 mm	N/A 4.1875 in106.363 mm	N/A
833233D	N/A 833000	N/A 23.2500 in590.550 mm	N/A 6.8750 in174.625 mm	N/A
834D	N/A 835	N/A 6.75 in171.450 mm	N/A 3.9375 in100.013 mm	N/A
843291CD	N/A 843000	N/A 29.0000 in736.600 mm	N/A 5.4375 in138.113 mm	N/A
843291CDA	N/A 843000	N/A 29.0000 in736.600 mm	N/A 5.4375 in138.113 mm	N/A
843292D	N/A 843000	N/A 29.2500 in742.950 mm	N/A 5.4375 in138.113 mm	N/A
8520CD	N/A 8500	N/A 12.875 in327.025 mm	N/A 3.25 in82.55 mm	N/A
8522D	N/A 8500	N/A 12.9380 in328.625 mm	N/A 3.25 in82.55 mm	N/A
854D	N/A 855	N/A 7.5 in190.5 mm	N/A 4 in101.6 mm	N/A
854DC	N/A 855	N/A 7.5 in190.5 mm	N/A 4 in101.6 mm	N/A

N/A 5.5 in139.7 mm

N/A 2.0395 in51.803 mm

N/A

78549DC

N/A 78000

N/A 5.5 in139.7 mm

N/A 2.0395 in51.803 mm

N/A

78551DF

N/A 78000

N/A 5.5100 in139.954 mm

N/A 2.0395 in51.803 mm

N/A

790223D

N/A 790000

N/A 22.0000 in558.800 mm

N/A 8.75 in222.25 mm

N/A

792CD

N/A 795

N/A 8.1250 in206.375 mm

N/A 3.25 in82.55 mm

N/A

793DE

N/A 795

N/A 8.1250 in206.375 mm

N/A 3.25 in82.55 mm

N/A

81963CD

N/A 81000

N/A 9.6250 in244.475 mm

N/A 3.125 in79.375 mm

N/A

820161CD

N/A 820000

N/A 16.0000 in406.400 mm

N/A 5.8125 in147.638 mm

N/A

822176CD

N/A 822000

N/A 17.5 in444.5 mm

N/A 4.5 in114.3 mm

N/A

822176D

N/A 822000

N/A 17.5 in444.5 mm

N/A 4.5 in114.3 mm

N/A

822176DC

N/A 822000

N/A 17.5 in444.5 mm

N/A 4.5 in114.3 mm

N/A

82620D

N/A 82600

N/A 11.0000 in279.400 mm

N/A 3.8125 in96.838 mm

N/A

82622D

N/A 82600

N/A 10.7500 in273.050 mm

N/A 3.8125 in96.838 mm

N/A

82932D

N/A 82000

N/A 9.3125 in236.538 mm

N/A 4.1875 in106.363 mm

N/A

82932DC

N/A 82000

N/A 9.3125 in236.538 mm

N/A 4.1875 in106.363 mm

N/A

82951CD

N/A 82000

N/A 9.5 in241.3 mm

N/A 4.1875 in106.363 mm

N/A

833233D

N/A 833000

N/A 23.2500 in590.550 mm

N/A 6.8750 in174.625 mm

N/A

834D

N/A 835

N/A 6.75 in171.450 mm

N/A 3.9375 in100.013 mm

N/A

843291CD

N/A 843000

N/A 29.0000 in736.600 mm

N/A 5.4375 in138.113 mm

N/A

843291CDA

N/A 843000

N/A 29.0000 in736.600 mm

N/A 5.4375 in138.113 mm

N/A

843292D

N/A 843000

N/A 29.2500 in742.950 mm

N/A 5.4375 in138.113 mm

N/A

8520CD

N/A 8500

N/A 12.875 in327.025 mm

N/A 3.25 in82.55 mm

N/A

8522D

N/A 8500

N/A 12.9380 in328.625 mm

N/A 3.25 in82.55 mm

N/A

854D

N/A 855

N/A 7.5 in190.5 mm

N/A 4 in101.6 mm

N/A

854DC

N/A 855

N/A 7.5 in190.5 mm

N/A 4 in101.6 mm

N/A

Email ^*
First Name ^*
Last Name ^*
Company ^*
Department ^*
Country ^*
Zip/Postal Code ^*
Phone Number

No Preference
00000
02800
05000
07000
08000
09000
100000
107000
109000
113000
114000
126000
127000
128000
129000
130000
132000
134000
13600
13800
14000
147000
148000
15000
153000
160000
17000
170000
180000
18600
192000
21000
210000
22000
220000
222000
224000
230000
234000
239000
24000
240000
243000
244000
24700
2500
25000
25500
26000
275000
27600
27800
28000
280000
285000
28900
290000
292000
29500
295000
29600
29800
327000
328000
33000
333000
33800
3400
34000
355
365
36600
36900
3700
37000
375
385
395
39500
41000
42000
420000
425000
426000
43000
430000
435
435000
44000
450000
455
455000
46700
47400
475
48200
48300
48600
495
52000
520000
526000
53000
535
542000
543000
545000
55000
55000C
555
56000
560000
565
570000
575
580000
595
618000
626000
635
64000
640000
649000
650000
655
655000
66000
660000
66500
670000
67300
675
67700
67800
67900
700000
71000
72000
72000C
722000
724000
73000
736000
737000
74000
743000
745
749000
750000
752000
755
755000
762000
763000
775
78000
780000
78000C
790000
795
81000
82000
820000
822000
82600
833000
835
843000
8500
855
86000
87000
895
91000
910000
9200
920000
923000
929000
9300
93000
935
94000
940000
95000
96000
97000
970000
98000
980000
99000
A2000
A4000
H127700
H230800
H232200
H235100
H238100
H239600
H242600
H247500
H249100
H263900
H337800
H429600
H432600
H924000
H961600
H969200
HH221400
HH224300
HH228300
HH234000
HH249900
HH258200
HH264100
HH267600
HH924300
HH949500
HH953700
HM120800
HM124600
HM125600
HM127400
HM129800
HM133400
HM136900
HM227500
HM231100
HM235100
HM237500
HM252300
HM256800
HM259000
HM261000
HM262700
HM265000
HM266400
HM456900
HM617000
HM731600
HM743300
HM746600
HM821500
HM855400
HM921300
HM926700
L116100
L163100
L217800
L225800
L281100
L305600
L319200
L327200
L357000
L432300
L433700
L476500
L507900
L521900
L540000
L555200
L610500
L623100
L624500
L713000
L814700
L860000
L882400
LL365300
LL475000
LL537600
LL573700
LL579700
LL669800
LL686900
LL687900
LL714600
LL771900
LL789800
LL789900
LL889000
LL989300
LM114800
LM119300
LM121900
LM122900
LM124400
LM241100
LM249700
LM251600
LM272200
LM278800
LM281000
LM281800
LM282500
LM283600
LM286200
LM330400
LM377400
LM446300
LM451300
LM520300
LM522500
LM654600
LM665900
LM739700
LM742700
LM763800
LM769300
LM772700
LM778500
LM844000
LM869400
LM961500
LM986900
M224700
M227400
M231600
M235100
M238800
M241500
M244200
M249700
M252300
M255400
M268700
M270400
M270700
M271600
M272700
M274100
M276400
M278700
M281600
M282200
M283400
M541300
M667900
M84500
M919000

No Preference
1.2000
1.3775
1.5
1.8104
1.8504
1.9380
1.9687
2.25
2.3125
2.4409
2.5000
2.6150
2.7170
2.7500
2.8125
2.8336
2.8750
2-15/16
3
3.1250
3.1510
3.1875
3.2500
3.2650
3.2810
3.3458
3.4843
3.5427
3.5480
3.5433
3.6250
3.6718
3.7188
3.7500
3.8750
3.937
4.0625
4.1250
4.1563
4.25
4.3125
4.3300
4.3307
4.375
4-7/16
4.4995
4.5268
4.5000
4.5625
4.625
4.7239
4.7244
4.7812
4-7/8
4.9375
5.1174
5
5.1250
5.25
5.3750
5.5100
5.5108
5.5
5.625
5.5115
5.7500
5 7/8
6
6-1/8
6.2987
6.25
6.3740
6-3/8
6.4951
6.5625
6.625
6 1/2
6.6919
6.75
6.8750
6.9688
7.0856
7
7-1/8
7.1875
7.0866
7.4790
7-5/8
7.6722
7.6875
7.5
7.8125
7.8720
7.875
7.75
8.0938
8.1250
8.1870
8.1875
8
8.2627
8.3125
8.3750
8.4375
8.5000
8.6564
8.6870
8.6875
8.9375
9
9.0501
8.75
8 7/8
9.3125
9.4375
9.5
9.25
9.5625
9.7188
9.8375
9 3/4
9.9375
9.875
10.0384
10.1875
9.6250
10.25
10.3120
10.00
10.1250
10.5625
10.7500
10.8780
10-7/8
10.5
11.25
10.6250
11.3125
11.3750
11.4155
11.4370
11.0000
11.7500
11.625
11.1250
11.8750
11.8780
12.1250
12.25
12.3750
11.5000
12.5620
12.5975
12.6250
12
12.875
12.9380
13.1250
12.5000
13.6875
12.75
13.7460
13.75
13.8125
13.875
13.9744
13.0000
13.9960
13.2500
14.0630
14.125
14.3750
14.6250
14.75
14.9960
15.0000
15.1250
14
15.5
14.5000
16.25
16.3750
16.6250
16.6500
16.7500
16.9970
15.7500
17.246
17.3208
16.0000
17.3750
17.6250
17.5
17.7500
16.5
17.9960
17
18.7500
18.8125
19.2500
19.7500
20.2500
20.0000
20.3750
18.5000
20.6250
20.7037
19
21.0
21.2500
19.5000
22.0000
20.5000
22.2500
22.6250
22.8326
23.2263
21.5000
23.2500
23.4232
23.9970
24.2500
24.0
24.5000
22.5000
24.9950
25.5876
25.9813
23.5000
26.2470
26.0
23.7500
26.5000
26.7500
26.9960
27.2500
25.0000
28.2500
28.7460
29.0000
29.2500
29.9950
30.0000
28.0
30.3750
30.8750
31.2500
33.6584
33.7500
31.0000
34
34.5000
32.0000
35.4301
35.5000
36.0000
36.0199
33.0000
36.6250
36.7500
38.0000
39.0000
39.5000
40.7500
41.0000
42.0000
38.5000
40.0000
44.5000
54.0000
56.5000
62.3750
66.8125
79.0000

No Preference
30.480
34.989
38.1
45.984
47
49.225
50.005
57.15
58.738
61.999
63.500
66.421
69.012
69.850
71.438
71.973
73.025
74.613
76.2
79.375
80.035
80.963
82.550
82.931
83.337
84.983
88.501
89.985
90.119
92.075
90
93.264
94.458
95.250
98.425
100
103.188
104.775
105.570
109.538
109.982
107.95
111.125
112.713
110
114.287
114.981
115.888
117.475
114.300
119.987
121.442
123.825
120
125.413
129.982
130.175
127
136.525
139.954
139.974
133.35
139.992
142.875
139.7
149.225
146.050
155.575
159.987
152.4
161.900
161.925
164.976
166.688
168.275
158.750
169.974
171.450
174.625
177.008
165.1
179.974
180.975
182.563
189.967
177.8
193.675
194.874
195.263
180
198.438
199.949
200.025
205.583
206.375
207.950
207.963
190.5
209.873
211.138
212.725
214.313
196.850
215.900
219.873
220.650
220.663
203.2
227.013
228.600
229.873
236.538
239.713
241.3
242.888
246.858
247.650
249.873
250.825
222.250
252.413
225.425
254.975
258.763
260.350
261.925
234.95
268.288
273.050
276.225
276.301
244.475
285.750
287.338
288.925
289.954
254.000
290.500
257.175
295.275
298.450
301.625
301.701
307.975
311.15
266.7
314.325
269.875
319.075
319.977
320.675
279.400
327.025
328.625
282.575
333.375
347.663
349.148
349.250
292.100
350.838
352.425
354.950
355.498
357.200
358.775
304.8
365.125
371.475
317.500
374.650
380.898
381.000
384.175
323.85
393.7
330.200
336.550
412.750
415.925
422.275
422.910
425.450
355.6
431.724
438.048
439.948
441.325
444.5
447.675
368.300
450.850
457.098
476.250
477.838
488.950
400.050
406.400
501.650
508.000
514.350
517.525
419.1
523.875
525.874
533.400
431.8
539.750
558.800
565.150
574.675
469.900
579.948
589.948
590.550
594.949
482.6
609.524
609.600
495.300
615.950
622.300
634.873
520.7
649.925
659.925
660.400
666.674
673.100
679.450
685.698
546.1
692.150
717.550
571.500
730.148
736.600
742.950
596.9
603.25
761.873
762.000
771.525
784.225
793.750
635
854.923
857.250
863.6
876.300
899.925
901.700
914.400
711.2
914.905
930.275
933.450
965.200
990.600
1003.300
1035.050
1041.400
787.4
1066.800
812.800
838.200
1130.300
1371.600
1435.100
977.9
1584.325
1697.038
1016
2006.600

Series

D - Cup Outer Diameter (in)

D - Cup Outer Diameter (mm)

Part Number

Series

D - Cup Outer Diameter

C - Double Cup Width

CAD