A ball bearing carries the following loads: Fr= 5000 N & Ft= 1000 N. The design...
A ball bearing carries the following loads: Fr= 5000 N & Ft= 1000 N. The design requires 5000 hours of service at 1000 rpm and a reliability of 98%. Select a 300 series radial contact ball bearing.
Homework Answers
Assumptions:
1.The inner ring of the bearing fits with enough interference to prevent relative motion during operation.
2.The internal fits between the balls and their races are correct.
3.Bearing misalignment is no more than 15'.
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A ball bearing carries the following loads: Fr= 5000 N
& Ft= 1000 N. The design...
Figure P14.28 shows two bearings supporting a 1000-rpm shaft and gear. The bearing on the left...
Figure P14.28 shows two bearings supporting a 1000-rpm shaft and gear. The bearing on the left carries a 5-kN radial load and 1-KN thrust load. The loading is borderline between "light" and "moderate" impact. The required life is 5000 hours with only 2% probability of failure. Select a 200 series radial-contact ball bearing for the left bearing. Shaft Bearing Gear FIGURE P14.28
) Given: You have to use a series 02 deep grove ball bearing with a C10...
) Given: You have to use a series 02 deep grove ball bearing with a C10 rating of 30.7KN and a catalog life rating of 106 cycles. The inner ring rotates and the reliability is 90%. You want the bearing to last 4000hrs at 1200RPM. What is the Fo (desgin rating). Given: You have to use a standard series 02 deep groove ball bearing. Your design radial force is 650Lb and your design life is 25Khrs. The torque being transmitted...
A 304 ball bearing carries a radial load of 667 lb and an axial load o...
A 304 ball bearing carries a radial load of 667 lb and an axial load o 125 lb at 300 rpm for 50% of the time, a 600 lb radial load at 500 rpm for the remaining 25% of the time, and a 350 lb radial load at 1,000 rpm for the remaining 25% of the time. The outer ring rotates, and the loads are steady. Find the rating life based on operating 8 hours per day, and 250 days...
A Read aloud Draw Erase Figure P14.28 shows two bearings supporting a 1000-rpm shaft and gear....
A Read aloud Draw Erase Figure P14.28 shows two bearings supporting a 1000-rpm shaft and gear. The bearing on the left carries a 5-kN radial load and 1-KN thrust load. The loading is borderline between "light" and “moderate" impact. The required life is 5000 hours with only 2% probability of failure. Select a 200 series radial-contact ball bearing for the left bearing. Gear Shaft Bearing bo 10:22 PM 3 O Type here to search
Consider Figure Q3 below, showing the two bearings required to transmit constant in- service loads between...
Consider Figure Q3 below, showing the two bearings required to transmit constant in- service loads between a railway car and one of its axles. Assuming that the two bearings must be identical, select an appropriate medium radial ball bearing to provide one year of continuous operation at 300 rpm with 90% reliability. Assume that the thrust loads are shared equally between the two bearings, and there is a moderate impact. cg 600 lb 2000 lb Figure Q3
Problem #2 (50 point): A certain application requires a ball bearing with the inner ring rotating, with a design life of 40000 hr at a speed of 350 rev/min. The radial load is 2.15 kN and an appl...
Problem #2 (50 point): A certain application requires a ball bearing with the inner ring rotating, with a design life of 40000 hr at a speed of 350 rev/min. The radial load is 2.15 kN and an application factor of 1.3 is appropriate. The reliability goal is 0.90. Find the multiple of rating life required, Xo, and the catalog rating Cio with which to enter a bearing table. Choose a 02-series deep-groove ball bearing from Table 11-2, and estimate the...
A radial, deep grove ball bearing is specified from a manufacturer’s catalog based on a L10...
A radial, deep grove ball bearing is specified from a manufacturer’s catalog based on a L10 life of 106 cycles. The bearing has a basic load rating of 2,500 N and is to be used in an application where the design radial load is 350 N and the axial load is zero. What is the predicted life (hours of the bearing if the inner race of the bearing rotates at 1,800 rpm? A.70 B. 3,400 C. 200,000 D. 160
A 02-series angular contact ball bearing with a 10-mm bore is loaded with a 0.3604 kN axial load and 100 kN radial load. The inner ring rotates at 8000 rev/min and working 2000-hour service. For Rd =...
A 02-series angular contact ball bearing with a 10-mm bore is
loaded with a 0.3604 kN axial load and 100 kN radial load. The
inner ring rotates at 8000 rev/min and working 2000-hour service.
For Rd = 93% and af = 1.
(a) Determine the equivalent radial load that will be
experienced by the bearing.
(b) Consider a rating rated life of 10^6 revolutions find C10
load experienced by bearing and calculate the factor of safety in
carrying the load...
If we desire that a AFBMA system ball bearing can take a radial load F 5...
If we desire that a AFBMA system ball bearing can take a radial load F 5 kN with a design Li life of 15000 hours at a speed of 3600 rpm. The application factor is ar-I.2. If the bearing maker's catalog ratingss are based on a L life of/ million revolutions. The three Weibull parameters are x, -0.02, (0-x,)- 4.439, and b-1483 The minimum required catalog (for / millionrevolutions) loaa rating C0 should be equal to )(A) A s V....
A ball bearing on a shaft has a variable loading as shown in the table below. What is the minimum C10 rating required for the bearing to last 10,000 hours for Ls Life? One Cycle Phase 2 6 1500 2000 1...
A ball bearing on a shaft has a variable loading as shown in the table below. What is the minimum C10 rating required for the bearing to last 10,000 hours for Ls Life? One Cycle Phase 2 6 1500 2000 1.8 Phase 1 4 1000 Phase 3 Minutes in Phase Speed (RPM) Bearing Load (N)3000 Application Factor 800 5000 1.5 1.2
A ball bearing on a shaft has a variable loading as shown in the table below. What is the...
Figure P14.28 shows two bearings supporting a 1000-rpm shaft and gear. The bearing on the left carries a 5-kN radial load and 1-KN thrust load. The loading is borderline between "light" and "moderate" impact. The required life is 5000 hours with only 2% probability of failure. Select a 200 series radial-contact ball bearing for the left bearing. Shaft Bearing Gear FIGURE P14.28
) Given: You have to use a series 02 deep grove ball bearing with a C10 rating of 30.7KN and a catalog life rating of 106 cycles. The inner ring rotates and the reliability is 90%. You want the bearing to last 4000hrs at 1200RPM. What is the Fo (desgin rating). Given: You have to use a standard series 02 deep groove ball bearing. Your design radial force is 650Lb and your design life is 25Khrs. The torque being transmitted...
A 304 ball bearing carries a radial load of 667 lb and an axial load o 125 lb at 300 rpm for 50% of the time, a 600 lb radial load at 500 rpm for the remaining 25% of the time, and a 350 lb radial load at 1,000 rpm for the remaining 25% of the time. The outer ring rotates, and the loads are steady. Find the rating life based on operating 8 hours per day, and 250 days...
A Read aloud Draw Erase Figure P14.28 shows two bearings supporting a 1000-rpm shaft and gear. The bearing on the left carries a 5-kN radial load and 1-KN thrust load. The loading is borderline between "light" and “moderate" impact. The required life is 5000 hours with only 2% probability of failure. Select a 200 series radial-contact ball bearing for the left bearing. Gear Shaft Bearing bo 10:22 PM 3 O Type here to search
Consider Figure Q3 below, showing the two bearings required to transmit constant in- service loads between a railway car and one of its axles. Assuming that the two bearings must be identical, select an appropriate medium radial ball bearing to provide one year of continuous operation at 300 rpm with 90% reliability. Assume that the thrust loads are shared equally between the two bearings, and there is a moderate impact. cg 600 lb 2000 lb Figure Q3
Problem #2 (50 point): A certain application requires a ball bearing with the inner ring rotating, with a design life of 40000 hr at a speed of 350 rev/min. The radial load is 2.15 kN and an application factor of 1.3 is appropriate. The reliability goal is 0.90. Find the multiple of rating life required, Xo, and the catalog rating Cio with which to enter a bearing table. Choose a 02-series deep-groove ball bearing from Table 11-2, and estimate the...
A 02-series angular contact ball bearing with a 10-mm bore is
loaded with a 0.3604 kN axial load and 100 kN radial load. The
inner ring rotates at 8000 rev/min and working 2000-hour service.
For Rd = 93% and af = 1.
(a) Determine the equivalent radial load that will be
experienced by the bearing.
(b) Consider a rating rated life of 10^6 revolutions find C10
load experienced by bearing and calculate the factor of safety in
carrying the load...
If we desire that a AFBMA system ball bearing can take a radial load F 5 kN with a design Li life of 15000 hours at a speed of 3600 rpm. The application factor is ar-I.2. If the bearing maker's catalog ratingss are based on a L life of/ million revolutions. The three Weibull parameters are x, -0.02, (0-x,)- 4.439, and b-1483 The minimum required catalog (for / millionrevolutions) loaa rating C0 should be equal to )(A) A s V....
A ball bearing on a shaft has a variable loading as shown in the table below. What is the minimum C10 rating required for the bearing to last 10,000 hours for Ls Life? One Cycle Phase 2 6 1500 2000 1.8 Phase 1 4 1000 Phase 3 Minutes in Phase Speed (RPM) Bearing Load (N)3000 Application Factor 800 5000 1.5 1.2
A ball bearing on a shaft has a variable loading as shown in the table below. What is the...
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