Working on a Poulan Pro 455 chainsaw and need new Crankshaft main bearings. Poulan part # is 507433355. I looked on Ebay and they want an arm and a leg for them. Does anybody know of a Husqvarna, Stihl or other chainsaw bearing that is the same size but much cheaper to buy? The bearing itself is a NSK 6202-16 M. When I looked this up on Ebay only one showed up and it had the plastic covers on it. I know you can take the covers off but they only have one left so this does not help me any. I need 4. I need a set for my Poulan Pro 455 and a set for my Pioneer/Partner P45.