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BRAKES AND

DYNAMOMETERS

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What is brake

A brake is a mechanical device which

r!d"ce #ricti!nal resistance a$ainst

m!vin$ machine member% in !rder t!

st! the m!ti!n !# machine

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&aacit' !# brake deends !n

(nit ress"re between the brakin$ s"r#aces)

The c!e##icient !# #ricti!n between the brakin$ s"r#aces)

The eriheral vel!cit' !# the brake dr"m)

The r!*ected area !# the #ricti!n s"r#aces)

+eat dissiatin$ caacit' !# brake)

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&+ARA&TER,ST,& O- BRAK,N.

MATER,A/

+i$h c!e##icient !# #ricti!n)

/!w wear rate)

+i$h heat resistance)

hi$h heat dissiati!n caacit')

hi$h mechanical stren$th)

N!t a##ected b' m!ist"re and !il

Material "sed #!r brake linin$ are 012 br!n3e in &), 042 Steel !n &),

052 W!!d !n &), 062 /eather !n Metal

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T'es7&lassi#icati!n !# brakes)

Brakes

Mechanical

brakes

A8ial

brakes

Disc

brake

&!ne

brake

Radial

brakes

Bl!ck

brakes

Sin$le

bl!ck

D!"ble

bl!ck

Band

brakes

Simle

band brake

Di##erentia

Band brake

+'dra"lic

brakes

Electric

brakes

http://var/www/apps/conversion/tmp/scratch_1/Hydraulic%20BRAKE.pptxhttp://var/www/apps/conversion/tmp/scratch_1/Hydraulic%20BRAKE.pptxhttp://var/www/apps/conversion/tmp/scratch_1/Electric%20current%20brake.pptxhttp://var/www/apps/conversion/tmp/scratch_1/Electric%20current%20brake.pptxhttp://var/www/apps/conversion/tmp/scratch_1/Electric%20current%20brake.pptxhttp://var/www/apps/conversion/tmp/scratch_1/Electric%20current%20brake.pptxhttp://var/www/apps/conversion/tmp/scratch_1/Hydraulic%20BRAKE.pptxhttp://var/www/apps/conversion/tmp/scratch_1/Hydraulic%20BRAKE.pptx

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Bl!ck brake

0a2 Sin$le bl!ck brake 0b2 D!"ble bl!ck brake

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Sin$le bl!ck brake

&ase91

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&ase94

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&ase95

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:iv!ted bl!ck7sh!e brake

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D!"ble bl!ck sh!e brake

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Simle band brake

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,nternal e8andin$ brake

http://var/www/apps/conversion/tmp/scratch_1/shoe%20brake.pptxhttp://var/www/apps/conversion/tmp/scratch_1/shoe%20brake.pptx

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d'nam!meter

D'nam!meter is a device t! meas"re the #ricti!nal resistance )Kn!win$ the -ricti!nal resistance% we ma' !btain the t!r;"e

transmitted and hence the !wer !# the en$ine)

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DYNAMOMETER

ABSOR:T,ON DYNAMOMETER

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