Inquiry (采购产品): pulley Dear Sir/Madam, I am interested in buying 2 pulleys with built in ball bearings, such that they can withstand weight upto 40 kilograms while rotating at speeds not more than 35-40RPMs.Could you please help me out with it? Thanks, Suhail **** Hidden Message ***** Suhail Kapoor B4 7ET GBR Company: Aston University E-mail: kapoors1@aston.ac.uk **** Hidden Message ***** kapoors1@aston.ac.uk