Hey there, I designed a telescopic arm and i need to know which kind of bearing is best to use for. the telescopic arm full length is 1M and it has 3 "arms". *I know i need to show progress in my homework according to PF rules, but im having trouble uploading it here. Please help me, i need to help with this. If there is any extra information needed, please tell me and i will add it. thanks in advance, Ben.