Machine design slide 21

Machine design slide 21 - location of the bearing...

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ENGR 3220 – Machine Design ENGR 3220 – Machine Design April 6, 2011 April 6, 2011
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Example 1 The drum for the band brake in following figure has a14- in  diameter. The band selected has a mean coefficient of friction 0.25  and a width of 4 in. The maximum band interface pressure on the  brake is 90 psi. If the angle of wrap is 270º, find the band tensions  and the torque capacity.
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Example 2 The figure shows a 16T 20º straight bevel  pinion driving a 32T gear, and the 
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Unformatted text preview: location of the bearing centerline. Pinion shaft a receives 2.5 hp at 240 rev/min. Determine the bearing reactions at A and B if A is to take both radial and thrust loads. Example 2 1.67 Example 3 The block-type hand brake shown in the figure has a face width of 30 mm and a mean coefficient of friction of 0.25. For an estimated actuating force of 400 N, find the maximum pressure on the shoe and find the braking torque....
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This note was uploaded on 04/16/2011 for the course ENGR 3220 taught by Professor Turro during the Spring '11 term at UOIT.

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Machine design slide 21 - location of the bearing...

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