A chain drive delivers 110 HP at 1700 RPM The sprocket hub i

A chain drive delivers 110 HP at 1700 RPM. The sprocket hub is cast iron and has a length of 3.25 in, outer diameter of 3.75 in, and bore diameter will be determined by your calculation. A interference fit is used to join the sprocket to a steel shaft with a diameter of 2.5 in. Determine the interference required between the hub and shaft. Present your solution as both the interference value delta, and the hub inner diameter. The length of the hub is not to change.

Solution

Sprockets and Drive Accessories A comprehensive range of pilot bored sprockets, chain wheels, and platewheels is available from stock, all of which can be supplied modified to suit customers shafting. For the more popular BS Chain sizes, taper bored sprockets are also available. To complete the drive is a range of self adjusting and rigid tensioners. Pilot bore sprockets and chainwheels for BS Chains, 05B-1 (8mm) to 32B-3 (2”). Pilot bore sprockets for ANSI Chains, ANSI 35 (3 /8”) to ANSI 80 (1”). Stainless steel pilot bore sprockets for BS Chains 06B-1 (3 /8”) to 16B-1 (1”). Pilot bore platewheels for BS Chains 06B-1 (3 /8”) to 32B-3 (2”). Taper bore sprockets and bushes for BS Chains 06B-1 (3 /8”) to 20B-1 (11 /4”). Double simplex sprockets for BS Chains 06B-1 to 16B-1. Idler sprockets for BS Chains 06B-1 to 20B-1. Spring loaded tensioners and rigid chain adjusters for 3 /8” to 11 /2”. HV Inverted Tooth Chain Morse HV Chain is ideal for applications where high powers, 30 to 3000 kW, are to be transmitted at moderate to high shaft speeds, 500 to 12,000 r.p.m., and where compact design is required. Offered in 6 pitch sizes and a selection of widths, HV is a highly refined inverted tooth chain providing the smoothness of a belt drive with the compactness, economy, and durability of chain drives. Drive efficiencies of up to 99.7% can be obtained with HV Chain. HV features a pin and rocker joint which, through its rolling action, reduces friction and provides pitch compensation. The result is reduction of damaging chordal action and a significant increase in horsepower capacity. HV links have more metal at the aperture, a lower crotch, and are shot peened and pre-stressed for greater load carrying capacity. HV offers three times the power capacity of standard silent chain over a greater speed range. At higher speeds where roller chain capacity drops off rapidly, HV chain powers continue to increase peaking at chain speeds over 30m/s. HV capacity is ideal for all power transmission requirements involving high speed prime movers such as diesel engines or gas turbines. Morse HV is the best buy for high capacity, high speed mechanical power transmission. Silent Chain ‘SC’ series silent chains are available from 3 /16” to 2” pitch in a selection of standard width sizes. All chains conform to ANSI B 29.2 and B 29.9 Standard ensuring total interchangeability. For all chains except 3 /16” pitch SC chain uses the special HV series pin an rocker joint providing optimum pitch compensation and reduced friction, enabling higher loads and speeds to be accommodated and compared to competitive chains. For 3 /16” pitch chain a round pin design is used to assist in manufacture, and increase flexibility for lower power drives. The round pin design is also used for double sided chains 1 /2” and 3 /4” pitch to enable full backbending.