Q5. The drum of a simple band brake is 450 mm. The band embraces 3/4th of the circumference of the drum. One end of the band is attached to the fulcrum pin and the other end is attached to a pin B as shown in Fig. 25.41. The band is to be lined with asbestos fabric having a coefficient
Q5. The drum of a simple band brake is 450 mm. The band embraces 3/4th of the circumference of the drum. One end of the band is attached to the fulcrum pin and the other end is attached to a pin B as shown in Fig. 25.41. The band is to be lined with asbestos fabric having a coefficient
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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![Q5. The drum of a simple band brake is 450 mm. The band
embraces 3/4th of the circumference of the drum. One
end of the band is attached to the fulcrum pin and the
other end is attached to a pin B as shown in Fig. 25.41. The
band is to be lined with asbestos fabric having a coefficient
of friction 0.3. The allowable bearing pressure for the
brake lining is 0.21 N/mm2. Design the band shaft, key,
lever and fulcrum pin. The material of these parts is mild
steel having permissible stresses as follows: ot = oc = 70
МРа, and t %3D56 MPа
250 N
75
450
T O
270
All dimensions in mm.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe8067aa8-6847-4f73-906b-fea67d4219f2%2F461be30d-b450-4d6a-89e5-c14da2114c69%2Fwp2l9cm_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q5. The drum of a simple band brake is 450 mm. The band
embraces 3/4th of the circumference of the drum. One
end of the band is attached to the fulcrum pin and the
other end is attached to a pin B as shown in Fig. 25.41. The
band is to be lined with asbestos fabric having a coefficient
of friction 0.3. The allowable bearing pressure for the
brake lining is 0.21 N/mm2. Design the band shaft, key,
lever and fulcrum pin. The material of these parts is mild
steel having permissible stresses as follows: ot = oc = 70
МРа, and t %3D56 MPа
250 N
75
450
T O
270
All dimensions in mm.
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