Hi folks,
I tried posting over in automotive since it's an SAE spec, but they didn't have much to say. If you know somewhere better to inquire about this, I'm all ears.
I am designing a one-off hydraulic power unit for a custom job at my company. We have the engine on order and the pump picked out, but the engine has an SAE A 4 bolt pattern and the pump has an SAE B two bolt pattern—the big issue being the pilot diameter interference (A is Ø3-1/4" and B is Ø4").
The engine manufacturer is providing a splined hub to adapt from the output of the engine to the input of the pump, leaving up to 5/8" between the mounting faces of the two flanges. Does there exist an adapter that will fit in that space or do I need to draw my own and pay a machine shop to cut two of them for us?
Is this all a moot point because I should use a shaft coupling between them? I'm trying to keep things compact because I don't know yet what else will need to fit here.
I tried posting over in automotive since it's an SAE spec, but they didn't have much to say. If you know somewhere better to inquire about this, I'm all ears.
I am designing a one-off hydraulic power unit for a custom job at my company. We have the engine on order and the pump picked out, but the engine has an SAE A 4 bolt pattern and the pump has an SAE B two bolt pattern—the big issue being the pilot diameter interference (A is Ø3-1/4" and B is Ø4").
The engine manufacturer is providing a splined hub to adapt from the output of the engine to the input of the pump, leaving up to 5/8" between the mounting faces of the two flanges. Does there exist an adapter that will fit in that space or do I need to draw my own and pay a machine shop to cut two of them for us?
Is this all a moot point because I should use a shaft coupling between them? I'm trying to keep things compact because I don't know yet what else will need to fit here.