Tapered Roller Bearings - Single Flanged Cups - Imperial On The Timken Company

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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.

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Part Number	Series	D - Cup Outer Diameter	C - Cup Width	CAD
1922-B	N/A 1900	N/A 2.2500 in57.150 mm	N/A 0.625 in15.875 mm	N/A
19268-B	N/A 19000	N/A 2.6875 in68.263 mm	N/A 0.4688 in11.908 mm	N/A
19283-B	N/A 19000	N/A 2.8346 in71.999 mm	N/A 0.5625 in14.288 mm	N/A
1931-B	N/A 1900	N/A 2.3750 in60.325 mm	N/A 0.625 in15.875 mm	N/A
1932-B	N/A 1900	N/A 2.3125 in58.738 mm	N/A 0.5937 in15.080 mm	N/A
203190-B	N/A 203000	N/A 19.0000 in482.600 mm	N/A 1.75 in44.45 mm	N/A
21212-B	N/A 21000	N/A 2.1250 in53.975 mm	N/A 0.625 in15.875 mm	N/A
221575-B	N/A 220000	N/A 15.7500 in400.050 mm	N/A 1.8125 in46.038 mm	N/A
232000-B	N/A 230000	N/A 20.0000 in508.000 mm	N/A 2 in50.8 mm	N/A
23256-B	N/A 23000	N/A 2.5625 in65.088 mm	N/A 0.625 in15.875 mm	N/A
243250-B	N/A 243000	N/A 24.9950 in634.873 mm	N/A 2.5000 in63.500 mm	N/A
244235-B	N/A 244000	N/A 23.5000 in596.9 mm	N/A 2.125 in53.975 mm	N/A
2523-B	N/A 2500	N/A 2.7500 in69.850 mm	N/A 0.75 in19.05 mm	N/A
25521-B	N/A 25500	N/A 3.2700 in83.058 mm	N/A 0.75 in19.05 mm	N/A
26283-B	N/A 26000	N/A 2.8346 in71.999 mm	N/A 0.625 in15.875 mm	N/A
2631-B	N/A 2600	N/A 2.6150 in66.421 mm	N/A 0.75 in19.05 mm	N/A
26822-B	N/A 26800	N/A 3.1250 in79.375 mm	N/A 0.75 in19.05 mm	N/A
2720-B	N/A 2700	N/A 3 in76.2 mm	N/A 0.75 in19.05 mm	N/A
275158-B	N/A 275000	N/A 15.8750 in403.225 mm	N/A 1.8125 in46.038 mm	N/A
27620-B	N/A 27600	N/A 4.9375 in125.413 mm	N/A 0.7813 in19.845 mm	N/A
28315-B	N/A 28000	N/A 3.1496 in80 mm	N/A 0.625 in15.875 mm	N/A
28521-B	N/A 28500	N/A 3.6250 in92.075 mm	N/A 0.7813 in19.845 mm	N/A
28622-B	N/A 28600	N/A 3.8437 in97.630 mm	N/A 0.7656 in19.446 mm	N/A
28921-B	N/A 28900	N/A 3.937 in100 mm	N/A 0.7813 in19.845 mm	N/A
291750-B	N/A 290000	N/A 17.5 in444.5 mm	N/A 1.5625 in39.688 mm	N/A

Part Number

Series

D - Cup Outer Diameter

C - Cup Width

CAD

1922-B

N/A 1900

N/A 2.2500 in57.150 mm

N/A 0.625 in15.875 mm

N/A

19268-B

N/A 19000

N/A 2.6875 in68.263 mm

N/A 0.4688 in11.908 mm

N/A

19283-B

N/A 19000

N/A 2.8346 in71.999 mm

N/A 0.5625 in14.288 mm

N/A

1931-B

N/A 1900

N/A 2.3750 in60.325 mm

N/A 0.625 in15.875 mm

N/A

1932-B

N/A 1900

N/A 2.3125 in58.738 mm

N/A 0.5937 in15.080 mm

N/A

203190-B

N/A 203000

N/A 19.0000 in482.600 mm

N/A 1.75 in44.45 mm

N/A

21212-B

N/A 21000

N/A 2.1250 in53.975 mm

N/A 0.625 in15.875 mm

N/A

221575-B

N/A 220000

N/A 15.7500 in400.050 mm

N/A 1.8125 in46.038 mm

N/A

232000-B

N/A 230000

N/A 20.0000 in508.000 mm

N/A 2 in50.8 mm

N/A

23256-B

N/A 23000

N/A 2.5625 in65.088 mm

N/A 0.625 in15.875 mm

N/A

243250-B

N/A 243000

N/A 24.9950 in634.873 mm

N/A 2.5000 in63.500 mm

N/A

244235-B

N/A 244000

N/A 23.5000 in596.9 mm

N/A 2.125 in53.975 mm

N/A

2523-B

N/A 2500

N/A 2.7500 in69.850 mm

N/A 0.75 in19.05 mm

N/A

25521-B

N/A 25500

N/A 3.2700 in83.058 mm

N/A 0.75 in19.05 mm

N/A

26283-B

N/A 26000

N/A 2.8346 in71.999 mm

N/A 0.625 in15.875 mm

N/A

2631-B

N/A 2600

N/A 2.6150 in66.421 mm

N/A 0.75 in19.05 mm

N/A

26822-B

N/A 26800

N/A 3.1250 in79.375 mm

N/A 0.75 in19.05 mm

N/A

2720-B

N/A 2700

N/A 3 in76.2 mm

N/A 0.75 in19.05 mm

N/A

275158-B

N/A 275000

N/A 15.8750 in403.225 mm

N/A 1.8125 in46.038 mm

N/A

27620-B

N/A 27600

N/A 4.9375 in125.413 mm

N/A 0.7813 in19.845 mm

N/A

28315-B

N/A 28000

N/A 3.1496 in80 mm

N/A 0.625 in15.875 mm

N/A

28521-B

N/A 28500

N/A 3.6250 in92.075 mm

N/A 0.7813 in19.845 mm

N/A

28622-B

N/A 28600

N/A 3.8437 in97.630 mm

N/A 0.7656 in19.446 mm

N/A

28921-B

N/A 28900

N/A 3.937 in100 mm

N/A 0.7813 in19.845 mm

N/A

291750-B

N/A 290000

N/A 17.5 in444.5 mm

N/A 1.5625 in39.688 mm

N/A

Required Fields ^*

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

No Preference
02400
05000
07000
08000
09000
107000
11000
12000
125000
126000
128000
1300
13800
14000
15000
15500
16000
1700
17000
17500
18000
18600
18700
1900
19000
203000
21000
220000
23000
230000
243000
244000
2500
25500
2600
26000
26800
2700
275000
27600
28000
28500
28600
28900
2900
290000
29500
29600
3100
31500
3300
33000
333000
335
33800
3400
34000
3500
35000
355
3600
365
36600
3700
37000
3800
385
3900
39000
395
39500
41000
42000
420000
42600
43000
435
44000
45200
455
46700
470000
475
47600
47800
48000
48200
48300
48600
49000
495
49500
52000
525
526000
53000
535
5500
55000C
555
56000
565
575
59000
595
615
6200
6300
635
6400
64000
640000
6500
65000
655
66000
67300
675
67700
67800
67900
68000
680000
71000
72000
74000
745
755
77000
775
78000C
795
80300
82000
820000
82700
835
8500
855
86000
87000
88000
895
9200
9300
93000
935
94000
95000
96000
98000
99000
A2000
A4000
A6000
H414200
H715300
HH221400
HH224300
HH814500
HM231100
HM237500
HM515200
HM515700
HM516400
HM535300
HM624700
HM804800
HM807000
HM813800
HM89400
HM911200
L102800
L116100
L305600
L357000
L433700
L467500
L507900
L623100
L624500
L630300
L826900
L848800
L853000
L865500
LL103000
LL205400
LL379000
LL380800
LL408000
LL480700
LL566800
LL582900
LL586000
LL648400
LL780200
LL788300
LL889000
LM124400
LM451300
LM48500
LM545800
LM565900
LM567900
LM613400
LM654600
LM67000
LM742700
LM757000
LM770900
LM814800
M238800
M244200
M249700
M349500
M86600
M88000

No Preference
1.2595
1.3775
1.5745
1.6875
1.8504
1.9380
1.9687
2
2.047
2.0625
2.1250
2.2400
2.2500
2.3125
2.3180
2.3280
2.3750
2.4375
2.4409
2.5000
2.5312
2.5625
2.6150
2.6875
2.7170
2.7500
2.8125
2.8346
2.8440
2.8593
2.8750
3
3.0312
3.0625
3.1250
3.1496
3.1562
3.1875
3.2187
3.2650
3.2700
3.3438
3.3465
3.3750
3.4375
3.4843
3 1/2
3.5433
3.6250
3.6718
3.6875
3.7500
3.8125
3.8437
3.8750
3.937
4
4.1250
4.25
4.2900
4.3287
4.3307
4.3750
4-7/16
4.4995
4.5628
4.5625
4.6250
4.7244
4 3/4
4.7812
4 13/16
4-7/8
4.9375
5
5.1159
5.1181
5.1259
5.1260
5.1250
5 1/4
5.3447
5.3750
5.5000
5.5115
5.5118
5.5960
5.625
5.7500
5 7/8
5.9090
6
6.1875
6.25
6.2992
6.3125
6-3/8
6 1/2
6.5625
6.6250
6.7500
7.0000
7-1/8
7.1875
7-1/4
7.5
7.5625
7-5/8
7.7500
7.8730
7.874
7.875
8
8.1250
8.3750
8.4636
8.5000
8 7/8
9.0000
9.25
9.5000
9 3/4
10.00
10-1/4
10.5
10.5625
10.6250
11.1250
11.25
11.3750
12.3750
12.4375
12.5000
12.9375
12.9921
12.875
13.2500
13-1/2
13.7775
14
14.125
14.3720
14.5000
14.9960
15.0000
15.9429
15.7500
15.8750
16.0000
17.5
18.1250
18.8750
19.0000
19.7500
20.0000
20.5625
21.0
21.6250
23.5000
23.7500
24.9950
26.0
27.0000
28.5625
29.0000
32.5000
38.5000
48.0000
56.5000

No Preference
31.991
34.989
39.992
42.863
47
49.225
50.005
50.8
51.994
52.388
53.975
56.896
57.150
58.738
58.877
59.131
60.325
61.913
61.999
63.500
64.292
65.088
66.421
68.263
69.012
69.850
71.438
71.999
72.238
72.626
73.025
76.2
76.992
77.788
79.375
80
80.167
80.963
81.755
82.931
83.058
84.933
85.001
85.725
87.313
88.501
88.900
90
92.075
93.264
93.663
95.250
96.838
97.630
98.425
100
101.600
104.775
107.95
108.966
109.949
110
111.125
112.713
114.287
115.888
115.895
117.475
120
120.650
121.442
122.238
123.825
125.413
127
129.944
130
130.175
130.198
130.200
133.350
135.755
136.525
139.700
139.992
140
142.138
142.875
146.050
149.225
150.089
152.400
157.163
158.750
160
160.338
161.925
165.1
166.688
168.275
171.450
177.800
180.975
182.563
184.150
190.5
192.088
193.675
196.850
199.974
200
200.025
203.2
206.375
212.725
214.975
215.900
225.425
228.600
234.95
241.300
247.650
254.000
260.350
266.7
268.288
269.875
282.575
285.750
288.925
314.325
315.913
317.500
327.025
328.613
329.999
336.550
342.900
349.949
355.6
358.775
365.049
368.300
380.898
381.000
400.050
403.225
404.950
406.400
444.5
460.375
479.425
482.600
501.650
508.000
522.288
533.400
549.275
596.9
603.25
634.873
660.400
685.800
725.488
736.600
825.500
977.9
1219.200
1435.100

Series

D - Cup Outer Diameter (in)

D - Cup Outer Diameter (mm)

Part Number

Series

D - Cup Outer Diameter

C - Cup Width

CAD