TABLE 2* VALUES OF fc
| D cos a dm |
Single Row Radial Contact; Single & Double Row Angular Contact, Groove Type(1) |
Double Row Radial Contact Groove Type |
Self Aligning |
|||
| Metrict(2) | lnch(3) | Metrict(2) | Inch(3) | Metric(2) | Inch(3) | |
| 0.05 0.06 0.07 0.08 0.09 0.10 0.12 0.14 0.16 0.18 0.20 0.22 0.24 0.26 0.28 0.30 0.32 0.34 0.36 0.38 0.40 |
46.7 49.1 51.1 52.8 54.3 55.5 57.5 58.8 59.8 59.9 59.9 59.6 59.0 58.2 57.1 56.0 54.6 53.2 51.7 50.0 48.4 |
3550 3730 3880 4020 4130 4220 4370 4470 4550 4530 4550 4530 4480 4420 4340 4250 4160 4050 3930 3800 3670 |
44.2 46.5 48.4 50.0 51.4 52.6 54.5 55.7 56.5 56.8 56.8 56.5 55.9 55.1 54.1 53.0 51.8 50.4 48.9 47.4 45.8 |
3360 3530 3680 3810 3900 4000 4140 4230 4290 4310 4310 4290 4250 4190 4110 4030 3950 3840 3730 3610 3480 |
17.3 18.6 19.9 21.1 22.3 23.4 25.6 27.7 29.7 31.7 33.5 35.2 36.8 38.2 39.4 40.3 40.9 41.2 41.3 41.0 40.4 |
1310 1420 1510 1600 1690 1770 1940 2100 2260 2410 2550 2680 2790 2910 3000 3060 3110 3130 3140 3110 3070 |
(1) a. |
When calculating the basic load
rating for a unit consisting of two similar, single row, radial contact ball bearings,In a
duplex mounting, the pair is considered as one, double row, radial contact ball bearing. When calculating the basic load rating for a unit consisting of two, similar, single row, angular contact ball bearings in a duplex mounting, “Face-to-Face” or “Back-to-Back”, the pair Is considered as one, double row, angular contact ball bearing. When calculating the basic load rating for a unit consisting of two or more similar, single angular contact ball bearings mounted “in Tandem”, properly manufactured and mounted for equal load distribution, the rating of the combination is the number of bearings to the 0.7 power times the rating of a single row bell bearing. If the unit may be treated as a number of individually interchangeable single row bearings, this footnote 1c does not apply. |
(2) |
Use to obtain C in newtons when
0 is given in mm. Use to obtain C in pounds when D is given in inches. |
___________________________________________________________________________________________
Reprinted by permission of the American National Standards lnstitute 1430 Broadway, New
York. N V. 10018 (from ANSI-AFBMA Std 9-1978)