Engineering Section | Frequencies of bearing parts

Frequencies of bearing parts

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Normal operation

During normal operation, a Cooper bearing will commonly have higher vibration readings than solid roller bearings due to the following.

Additional internal clearance created in the bearing from the inner race “shrinking” on to undersized shafting
The clearance in the ball and socket joint between the cartridge and pedestal.

Typical velocity readings for a properly installed new bearing can be as high as 0.15 inches per second (ips) at a bearing component frequency.

Typically, alarm levels would be set not higher than 0.6 ips. Shut down should occur not higher than 0.8 ips.

To obtain the correct frequencies for your application, the table values must be multiplied by the operating speed.

01 Series
inches	mm	01 Group size	Cage	Roller	Outer	Inner
1 3/16 to 1 1/2	35 40	108	0.405	2.538	4.051	5.949
1 11/16 to 2	45 50	200E	0.415	2.857	4.980	7.020
2 3/16 to 2 1/2	60 65	208E	0.417	2.934	5.840	8.160
2 11/16 to 3	70 75	300E	0.420	3.053	5.883	8.117
3 3/16 to 3 1/2	80-85 90	308E	0.423	3.187	6.774	9.226
3 11/16 to 4	100 105	400E	0.442	3.138	6.756	9.244
4 3/16 to 4 1/2	110 115	408	0.430	3.503	6.880	9.120
4 15/16 & 5	120-125 130	500	0.432	3.598	6.909	9.091
5 3/16 & 5 1/2	135 140	508	0.433	3.683	6.933	9.067
5 15/16 & 6	150 155	600	0.438	3.938	7.875	10.125
6 7/16 & 6 1/2	160	608	0.438	3.997	7.891	10.109
6 15/16 & 7	170 180	700	0.442	4.236	8.836	11.164
7 15/16 & 8	190 200	800	0.448	4.712	9.846	12.154
9	220	900	0.450	4.950	9.900	12.100
10	240	1000	0.455	5.455	11.818	14.182
11	260	1100	0.454	5.354	10.889	13.111
12	300	1200	0.457	5.807	11.889	14.111
13	320	1300	0.458	5.911	11.908	14.092
14	340	1400	0.461	6.294	12.895	15.105
15	360	1500	0.461	6.416	12.916	15.085
16	400	1600	0.463	6.782	13.900	16.100
17	420	1700	0.465	7.147	14.886	17.114
18	440	1800	0.467	7.512	15.874	18.127
19	480	1900	0.467	7.576	14.949	17.051
20	500	2000	0.469	7.925	15.932	18.068
21	530	2100	0.470	8.362	16.928	19.073
22	560	2200	0.471	8.711	17.913	20.087
23	-	2300	0.471	8.721	17.914	20.086
24	600	2400	0.473	9.056	18.899	21.101

02 Series
inches	mm	02 Group size	Cage	Roller	Outer	Inner
-	-	-	-	-	-	-
1 11/16 to 2	45 50	200	0.402	2.453	4.020	5.980
2 3/16 to 2 1/2	60 65	208	0.411	2.729	4.935	7.065
2 11/16 to 3	70 75	300	0.411	2.719	4.932	7.068
3 3/16 to 3 1/2	80-85 90	308	0.417	2.918	5.834	8.166
3 11/16 to 4	100 105	400	0.417	2.917	5.833	8.167
4 3/16 to 4 1/2	110 115	408	0.417	2.918	5.834	8.166
4 15/16 & 5	120-125 130	500	0.417	2.917	5.833	8.167
5 3/16 & 5 1/2	135 140	508	0.419	3.015	5.869	8.131
5 15/16 & 6	150 155	600	0.421	3.104	6.743	9.257
6 7/16 & 6 1/2	160	608	0.421	3.088	5.895	8.105
6 15/16 & 7	170 180	700	0.425	3.258	6.800	9.200
7 15/16 & 8	190 200	800	0.428	3.389	6.844	9.156
9	220	900	0.434	3.703	7.806	10.194
10	240	1000	0.435	3.792	7.833	10.167
11	260	1100	0.436	3.836	7.846	10.154
12	300	1200	0.440	4.140	8.810	11.190
13	320	1300	0.433	4.298	8.852	11.148
14	340	1400	0.433	4.337	8.862	11.138
15	360	1500	0.446	4.552	9.806	12.194
16	400	1600	0.447	4.683	9.839	12.161
17	420	1700	0.449	4.806	9.868	12.132
18	440	1800	0.451	5.008	10.814	13.186
19	480	1900	0.453	5.267	11.777	14.223
20	500	2000	0.455	5.469	12.731	15.269
21	530	2100	0.453	5.322	11.789	14.211
22	560	2200	0.455	5.561	12.751	15.249
23	-	2300	0.461	6.432	13.841	16.159
24	600	2400	0.458	5.958	13.750	16.250

03 Series
inches	mm	03 Group size	Cage	Roller	Outer	Inner
-	-	-	-	-	-	-
-	-	-	-	-	-	-
-	-	-	-	-	-	-
2 11/16 to 3	70 75	300	0.393	2.226	3.929	6.071
3 3/16 to 3 1/2	80-85 90	308	0.390	2.163	3.900	6.100
3 11/16 to 4	100 105	400	0.384	2.038	3.839	6.161
4 3/16 to 4 1/2	110 115	408	0.392	2.199	3.917	6.083
4 15/16 & 5	120-125 130	500	0.398	2.360	4.781	7.219
5 3/16 & 5 1/2	135 140	508	0.393	2.226	4.714	7.286
5 15/16 & 6	150 155	600	0.395	2.270	4.737	7.263
6 7/16 & 6 1/2	160	608	0.409	2.642	5.720	8.280
6 15/16 & 7	170 180	700	0.411	2.717	5.753	8.247
7 15/16 & 8	190 200	800	0.413	2.796	5.786	8.214
9	220	900	0.414	2.808	4.964	7.036
10	240	1000	0.418	2.971	5.853	8.147
11	260	X1100	0.425	3.240	6.794	9.206
11	300	E1100	0.423	3.160	6.764	9.236
12	300	1200	0.426	3.326	6.824	9.176
13	320	1300	0.423	3.184	5.927	8.073
14	340	X1400	0.427	3.362	6.835	9.165
14	340	E1400	0.428	3.405	6.850	9.150
15	360	1500	0.429	3.429	6.857	9.143
16	400	E1700	0.435	3.759	8.693	11.307
17	420	X1800	0.432	3.598	6.909	9.091
18	440	E1800	0.433	3.683	7.800	10.200
19	480	2000	0.437	3.900	7.864	10.136
20	500	E2200	0.440	4.107	8.800	11.200
21	530	E2300	0.442	4.244	9.722	12.278
-	-	-	-	-	-	-

For individual applications multiply by shaft speed.

01E Series frequencies differ from previous models. The 01E Series is designated by the suffix E after the group size and are shown within the shaded panel.