Use the provided tables to select an appropriate fit between the bearing inner ring (bore) and shaft and thebearing outer ring and housing. Assume that the bearing bore is 100 mm and the outer diameter (outerring) is 140 mm. Justify your selection. Should you change this selection if the load change or RPM?Also, calculate the maximum clearance in the housing and maximum interference on the shaft. What arethe bearing tolerances for the two diameters (d&D)?HousingOuter ringRetainedShaftInner ringRotatingLoad Shaft and housing fitsShaft fitsNominal shaft diameter in mmoverincl.10181830305080100100120120140160180200200250280506528016018022525065140225315Deviation of bearing bore diameter in um (normal tolerance)Admp-10-12-15-15-20-20-25-25-25-30-30-30-35-35Shaft deviation, fit interference or fit clearance in am-20-32-25-40-32-50-40-61-50-75-60-90-60-90-72-72-85-125-83-125-85-125-100-146-100-100-146-110-162-110-162e7|-107-107-146-20-38-32-59-25-40-73-5089-60-106-60-106-72126-72-126-85-14885-148-85-148-100-172-100-172-100-172-110191-110e847-191-10-18-16-27-13-20|-33-25-22-30-49-30-49-36-58-36-58-43-68-43-68-43-68-50-79-50-79-50-79-56-88-56-8816-41-10-22-13-28-16-20-25-50-30-60-3060-36-36-43-83-43-83-43-83-50-96-50-96-50-96-56-108-56-108f7-34-41-71-71-4-9-5-11--6-9-20-10-23-10-23-12-27-12-27-14-32-14-32-14-32-15-35-15-35-15-35-17-17-40-14-16-40-6-10-29-10-29-12-12-34-4-5-7-14-14-14-15-15-15-17-17-1734-44-12-14-20-25-39-39-39-44-44-49-49h5---6-8-9-11-13-1)-15-15-18-18--18-2020-20-23-23h6-8-11-13-16-19-19-22-22-25-25-25-29-29-29-32-325+5+7+7is-13-13-16-7-7-9-11-11-11-13-16+14-11+16+8-3+9+12+12-7+13+13-9+16-13+16-13+16-13+16-16+1114+1416-4-5-7-9-11-11-16+1.25+1,25+1.25+1,25+2,5+2,5+2,5+2.5+6+1.5+1,5+41414+5js3-4-4+2-2+2+2,52,5+3-3+3.53.5+6+5-5+6-6+7+7+8+8-4-4-6-7-7+2.5-2.5+3+6,5-6,5+6,5-6.5+9-9+9+9-9+10-10+10-10+10-10+4+4,5-4,5+5.5-5.5+7.5-7.5+7.5-7.5+11,5+11,5-11.5jss-4-11.56,5-6,518-8+9,5-9,5+9.5-9.512,5-12.512,5-12,512,5-12,516164,5-4.55.5-5.5+1111js614.5-14.514,5-14,514,5-14,5-11-11-16-16+2.5+2.5+3+4+5+6+6+8+8+8+10+10+10+12+12k3

Bearing Inner Ring Bore ( or ) Shaft Nominal Diameter, ( d ) = 100 mm. Bearing Outer Ring ( or )…

Use the provided tables to select an appropriate fit between the bearing inner ring (bore) and shaft and the bearing outer ring and housing. Assume that the bearing bore is 100 mm and the outer diameter (outer ring) is 140 mm. Justify your selection. Should you change this selection if the load change or RPM? Also, calculate the maximum clearance in the housing and maximum interference on the shaft. What are the bearing tolerances for the two diameters (d&D)? Housing Outer ring Retained Shaft Inner ring Rotating Load

Use the provided tables to select an appropriate fit between the bearing inner ring (bore) and shaft and the bearing outer ring and housing. Assume that the bearing bore is 100 mm and the outer diameter (outer ring) is 140 mm. Justify your selection. Should you change this selection if the load change or RPM? Also, calculate the maximum clearance in the housing and maximum interference on the shaft. What are the bearing tolerances for the two diameters (d&D)? Housing Outer ring Retained Shaft Inner ring Rotating Load

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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Concept explainers

Design of Shafts and Shaft Components

The shaft is basically defined as the machine element that rotates, is in circular cross-section, it is majorly used to transfer the power from one part of the system to another, or from a power generating machine to a power absorbing machine. The shaft is supported on bearings and is rotated with the help of a set of gears or pulleys that are used for the power transmission. Bending moment, torsion, and an axial force act upon the shaft. Designing of shaft primarily involves determining stresses at a critical point in the shaft that is arising due to loading.

Question

Use the provided tables to select an appropriate fit between the bearing inner ring (bore) and shaft and the
bearing outer ring and housing. Assume that the bearing bore is 100 mm and the outer diameter (outer
ring) is 140 mm. Justify your selection. Should you change this selection if the load change or RPM?
Also, calculate the maximum clearance in the housing and maximum interference on the shaft. What are
the bearing tolerances for the two diameters (d&D)?
Housing
Outer ring
Retained
Shaft
Inner ring
Rotating
Load

Shaft and housing fits
Shaft fits
Nominal shaft diameter in mm
over
incl.
10
18
18
30
30
50
80
100
100
120
120
140
160
180
200
200
250
280
50
65
280
160
180
225
250
65
140
225
315
Deviation of bearing bore diameter in um (normal tolerance)
Admp
-10
-12
-15
-15
-20
-20
-25
-25
-25
-30
-30
-30
-35
-35
Shaft deviation, fit interference or fit clearance in am
-20
-32
-25
-40
-32
-50
-40
-61
-50
-75
-60
-90
-60
-90
-72
-72
-85
-125
-83
-125
-85
-125
-100
-146
-100
-100
-146
-110
-162
-110
-162
e7
|-107
-107
-146
-20
-38
-32
-59
-25
-40
-73
-50
89
-60
-106
-60
-106
-72
126
-72
-126
-85
-148
85
-148
-85
-148
-100
-172
-100
-172
-100
-172
-110
191
-110
e8
47
-191
-10
-18
-16
-27
-13
-20
|-33
-25
-22
-30
-49
-30
-49
-36
-58
-36
-58
-43
-68
-43
-68
-43
-68
-50
-79
-50
-79
-50
-79
-56
-88
-56
-88
16
-41
-10
-22
-13
-28
-16
-20
-25
-50
-30
-60
-30
60
-36
-36
-43
-83
-43
-83
-43
-83
-50
-96
-50
-96
-50
-96
-56
-108
-56
-108
f7
-34
-41
-71
-71
-4
-9
-5
-11
--6
-9
-20
-10
-23
-10
-23
-12
-27
-12
-27
-14
-32
-14
-32
-14
-32
-15
-35
-15
-35
-15
-35
-17
-17
-40
-14
-16
-40
-6
-10
-29
-10
-29
-12
-12
-34
-4
-5
-7
-14
-14
-14
-15
-15
-15
-17
-17
-17
34
-44
-12
-14
-20
-25
-39
-39
-39
-44
-44
-49
-49
h5
--
-6
-8
-9
-11
-13
-1)
-15
-15
-18
-18
--18
-20
20
-20
-23
-23
h6
-8
-11
-13
-16
-19
-19
-22
-22
-25
-25
-25
-29
-29
-29
-32
-32
5
+5
+7
+7
is
-13
-13
-16
-7
-7
-9
-11
-11
-11
-13
-16
+14
-11
+16
+8
-3
+9
+12
+12
-7
+13
+13
-9
+16
-13
+16
-13
+16
-13
+16
-16
+11
14
+14
16
-4
-5
-7
-9
-11
-11
-16
+1.25
+1,25
+1.25
+1,25
+2,5
+2,5
+2,5
+2.5
+6
+1.5
+1,5
+4
14
14
+5
js3
-4
-4
+2
-2
+2
+2,5
2,5
+3
-3
+3.5
3.5
+6
+5
-5
+6
-6
+7
+7
+8
+8
-4
-4
-6
-7
-7
+2.5
-2.5
+3
+6,5
-6,5
+6,5
-6.5
+9
-9
+9
+9
-9
+10
-10
+10
-10
+10
-10
+4
+4,5
-4,5
+5.5
-5.5
+7.5
-7.5
+7.5
-7.5
+11,5
+11,5
-11.5
jss
-4
-11.5
6,5
-6,5
18
-8
+9,5
-9,5
+9.5
-9.5
12,5
-12.5
12,5
-12,5
12,5
-12,5
16
16
4,5
-4.5
5.5
-5.5
+11
11
js6
14.5
-14.5
14,5
-14,5
14,5
-14,5
-11
-11
-16
-16
+2.5
+2.5
+3
+4
+5
+6
+6
+8
+8
+8
+10
+10
+10
+12
+12
k3

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