Comparison : Item # HK0306 TN, HK Style Standard Needle Roller Bearings
Item # HK0408 TN, HK Style Standard Needle Roller Bearings
Item # HK0509, HK Style Standard Needle Roller Bearings
Item # HK0608, HK Style Standard Needle Roller Bearings
Item # HK0609, HK Style Standard Needle Roller Bearings