How to determine hole diameter in an oil jet? (For bearing lubrication)
How to determine hole diameter in an oil jet? (For bearing lubrication)
(OP)
Hi guys,
I'm trying to work out the size hole I will need to put into a small oil jet to lubricate a bearing correctly.
I know the pressure of the flow and the flow rate needed.
Is there a "flow through an orifice" type formula I can use to figure this out?
[Metric units would be awesome if possible!]
Thanks
Steve
I'm trying to work out the size hole I will need to put into a small oil jet to lubricate a bearing correctly.
I know the pressure of the flow and the flow rate needed.
Is there a "flow through an orifice" type formula I can use to figure this out?
[Metric units would be awesome if possible!]
Thanks
Steve





RE: How to determine hole diameter in an oil jet? (For bearing lubrication)
Use SI units throughout
Q = flow in m³/sec
Cv = flow coefficient - use 0.8 for a typical drilled orifice
D = orifice diameter in metres
P = differential pressure across the orifice in N/m²
rho = fluid density in kg/m³
RE: How to determine hole diameter in an oil jet? (For bearing lubrication)
Thanks again
Steve
RE: How to determine hole diameter in an oil jet? (For bearing lubrication)
RE: How to determine hole diameter in an oil jet? (For bearing lubrication)
Good luck