Chairman Daniel Levy has a reputation of wanting to recoup or make profit on his signings, with Bentley and Pavlyuchenko costing him almost £30million between them when signed at the start of last season.
"David would like to move, there is no doubt about that," Redknapp said.
"He feels he needs to move on and play. Obviously Pav wants to move but we are not mad to sell them. They are not going cheap and are both good players.
"It is up to the chairman and whether he gets the money and it is the right offer. I would not let them go cheaper. Otherwise you end up giving them all away.
"I won't let my emotions get in the way of the fee we get for Pav and Bentley."
Levy has spoken to a Russian club about the possibility of Pavlyuchenko returning after an unhappy spell following his move from Spartak Moscow.
"There is a chance Pav will go because he feels he wants to move back home," Redknapp said.