How does "bearingless" work in rotary torque transducer?
How does "bearingless" work in rotary torque transducer?
(OP)
I've found a torque cell that would work for me:
http://www.interfaceforce.com/index.php?T11-Bearin...
I'd like to understand how it supports the spinning shaft without bearings. I'm a bit familiar with hydrostatic bearings but it's not that. I thought maybe magnetostatic but that looks to be big and expensive.
The base model for this sells for $4900. Any ideas how they support the shaft on these?
http://www.interfaceforce.com/index.php?T11-Bearin...
I'd like to understand how it supports the spinning shaft without bearings. I'm a bit familiar with hydrostatic bearings but it's not that. I thought maybe magnetostatic but that looks to be big and expensive.
The base model for this sells for $4900. Any ideas how they support the shaft on these?





RE: How does "bearingless" work in rotary torque transducer?
RE: How does "bearingless" work in rotary torque transducer?
Either your device has bearings of some kind (magnetic? air?), or it is modular (frameless?), and you need to provide the bearings in your design. This is not necessarily a bad thing.
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JHG
RE: How does "bearingless" work in rotary torque transducer?
It comes with tools which hold the rotor and stator housing in alignment during installation. After the couplings are installed and the motor and load are connected, the tools are removed. The rotor is then free floating within the stator.
RE: How does "bearingless" work in rotary torque transducer?
The brackets and the base would have to be machined to tight flatness and squareness to avoid any movement when tightening the mounting screws. Very impressive that you could align all the parts, tighten the mounting screws and couplings and still control the small gap between rotor and housing.
RE: How does "bearingless" work in rotary torque transducer?