Mechanism: Rod assembly made of 304 stainless with diameter of 4.6mm impacts onto housing of hard anodized 6061 aluminum. The aluminum housing has a hole of 4.1mm concentric to the rod assembly. Thus the annular area of contact is 4.67mm^2 (0.00724in^2). Static stress would be 1472 psi based on...
Customer is changing a pneumatic cylinder out to an electric actuator. Here are the application requirements:
Load: 100 lbf vertical
Speed: move .25" in .25 second
Power: 24 VDC
Power tranmission: any (ballscrew, cam, rack and pinion, etc.)
My company manufacturers their own electric actuators...
We have a customer requirement for a spring to last 200 million cycles. The current spring chosen by another engineer is Century Spring #70834S. The spring has the following specifications:
OD .300"
ID .240"
Free length .940"
Rate 7.600 lbf/in
Solid height .260"
Wire diamter .030"
Total coils...
