Mad Money Lightning Round OT (TKR, ARNA, OSK)

Jim Cramer said on CNBC's Mad Money Lightning Round OT that The Timken Company

has a great business, but the stock is struggling along with the rest of the market. Cramer believes that investors should stick with The Timken Company

. Arena Pharmaceuticals, Inc.

is a good speculating stock, thinks Jim Cramer. He warned that there is a lot of time before the hearing for Arena Pharmaceuticals' (

) drug, and a lot of things could go wrong. Arena Pharmaceuticals, Inc. (

) fell 0.88% today. Investors are selling everything related to defense, said Cramer. He explained that investors are probably thinking that Obama will have to cut the budget for defense. Oshkosh Corporation

is struggling with the rest of the stocks from this sector, and Cramer believes that it would be wise to sell this stock, regardless the fact that it is trading at its 52 week low. Oshkosh Corporation (

) dropped 4.56% today.