A certain application requires a ball bearing with the inner ring rotating, with a design life of 26 kh at a speed of 455 rev/min. The radial load is 2.5 kN and an application factor of 1.2 is appropriate. The reliability goal is 0.92. Find the multiple of rating life required, xD , and the catalog rating C10 with which to enter a bearing table. Choose a 02-series deep-groove ball bearing from Table 11–2 and estimate the reliability in use. FilletShoulderDiameter, mmLoad Ratings, kNBore,OD,Width,Radius,Deep GrooveAngular ContactmmmmmmmmdsdμС10CoC10Co103090.612.5275.072.244.942.121232100.614.5286.893.107.023.051535110.617.5317.803.558.063.651740120.619.5349.564.509.954.752047141.0254112.76.2013.36.552552151.0304714.06.9514.87.653062161.0355519.510.020.311.03572171.0416525.513.727.015.04080181.0467230.716.631.918.64585191.0527733.218.635.821.25090201.0568235.119.637.722.855100211.5639043.625.046.228.560110221.5709947.528.055.935.565120231.57410955.934.063.741.570125241.57911461.837.568.945.575130251.58611966.340.571.549.080140262.09312770.245.080.655.085150282.09913683.253.090.463.090160302.010414695.662.010673.595170322.011015610869.512185.0

To findFind the rating life.Catalog rating from the table.Choose a 02-series deep-groove ball…

Answered: A certain application requires a ball…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A certain application requires a ball bearing with the inner ring rotating, with a design life of 26 kh at a speed of 455 rev/min. The radial load is 2.5 kN and an application factor of 1.2 is appropriate. The reliability goal is 0.92. Find the multiple of rating life required, xD , and the catalog rating C10 with which to enter a bearing table. Choose a 02-series deep-groove ball bearing from Table 11–2 and estimate the reliability in use.

Fillet
Shoulder
Diameter, mm
Load Ratings, kN
Bore,
OD,
Width,
Radius,
Deep Groove
Angular Contact
mm
mm
mm
mm
ds
dμ
С10
Co
C10
Co
10
30
9
0.6
12.5
27
5.07
2.24
4.94
2.12
12
32
10
0.6
14.5
28
6.89
3.10
7.02
3.05
15
35
11
0.6
17.5
31
7.80
3.55
8.06
3.65
17
40
12
0.6
19.5
34
9.56
4.50
9.95
4.75
20
47
14
1.0
25
41
12.7
6.20
13.3
6.55
25
52
15
1.0
30
47
14.0
6.95
14.8
7.65
30
62
16
1.0
35
55
19.5
10.0
20.3
11.0
35
72
17
1.0
41
65
25.5
13.7
27.0
15.0
40
80
18
1.0
46
72
30.7
16.6
31.9
18.6
45
85
19
1.0
52
77
33.2
18.6
35.8
21.2
50
90
20
1.0
56
82
35.1
19.6
37.7
22.8
55
100
21
1.5
63
90
43.6
25.0
46.2
28.5
60
110
22
1.5
70
99
47.5
28.0
55.9
35.5
65
120
23
1.5
74
109
55.9
34.0
63.7
41.5
70
125
24
1.5
79
114
61.8
37.5
68.9
45.5
75
130
25
1.5
86
119
66.3
40.5
71.5
49.0
80
140
26
2.0
93
127
70.2
45.0
80.6
55.0
85
150
28
2.0
99
136
83.2
53.0
90.4
63.0
90
160
30
2.0
104
146
95.6
62.0
106
73.5
95
170
32
2.0
110
156
108
69.5
121
85.0

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