1catalina.org.apache.juli.FileHandler.limit = 20000000 not working properly

[vikas byn]

.handlers = 1catalina.org.apache.juli.FileHandler, java.util.logging.ConsoleHandler

1catalina.org.apache.juli.FileHandler.level = FINE
1catalina.org.apache.juli.FileHandler.directory = ${catalina.base}/logs
1catalina.org.apache.juli.FileHandler.prefix = catalina.
1catalina.org.apache.juli.FileHandler.limit = 20000000
1catalina.org.apache.juli.FileHandler.count = 5

java.util.logging.ConsoleHandler.level = FINE
java.util.logging.ConsoleHandler.formatter = java.util.logging.SimpleFormatter

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I set these property in logging.properties file to rotate calaline.out file after 20 MB. but its not working .
How can i achieve this.