Part no Description weight 452.0230-901 Bottom shell 442.7140-00 Liner-Pin Shaft Arm 56 442.7141-00 Liner-Norrow Arm 44 442.7146-01 Bottom shell bushing 103 442.7106-01 Dust collar 442.7151-01 Eccentric 280 442.9643-01 Eccentric bushing 13+16+20+2