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Onan Crankshaft Diagrams


45BB 1.125" diameter straight shaft with 1/4" keyway, 
3/8-24UHF-2B  1.03" tapped minimum thread depth

 
45BC 1.125" diameter straight shaft with 1/4" keyway. Not available on P224.

 
45BD 1.437" diameter straight shaft with 3/8" keyway,
3/8"-24 UNF -2B 1.03" tapped minimum thread depth.

 
45BE 1.437" diameter straight shaft with 3/8" keyway,
3/8"-24 UNF -2B 1.03" tapped minimum thread depth.

 
45CC  No rear PTO. Stub end extends 1.25" from rear face of block. Only used when driving external accessories off the flywheel blower end of the engine.
No Photo Available.

 
45BS Cranshaft with 9 tooth internal spline for 
driving engine mounted hydraulic pump

 
45BU Crankshaft with 11 tooth internal spline for 
driving engine mounted hydraulic pump.

 
45BT Crankshaft with 13 tooth internal spline for 
driving engine mounted hydraulic pump.


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