Bore Diameter (Actual) 42.0 mm, Bore Length 2.5 in, Bushing Size 3525 , Bushing Type Taper-Lock , 3525 X 42MM-KW BUSHING , Installation Torque 1000.0 in_POUND, Integral Key - No , Keyway Size 12 X 8 , Material Cast Iron, Class 30 , Number of Bolts 3.0 , Rated Torque 44800.0 in_POUND, Shaft Attachment Finished Bore