I don't think there is any axial load on the needle bearing.
On the sleeves, I want to use the same but have absolutely no knowledge on the same. Any references or books or pointing in the right direction will help. Googling sleeves already though.
Sizes are not fixed yet but I'll post rough...
Hi,
I wanted to make a locking mechanism. The problem was the forces on the actuator (solenoid in this case) where getting too high
In image 2, the wedge shaped lock plate was exerting too much force on the actuator, which would unlock and could potentially break the actuator. Or I would have...
So what I understand is that the inner ring of the bearing can slide in or out in the bearings I had selected.
On other hand drawn cup bearing doesn't have inner ring. Assuming I press fit the bearing in housing, the bearing and housing are locked with each other.
Now the shaft can still slide...
Hi,
I am have been trying to figure out the correct way to mount a needle bearing.
I have previously worked with ball bearings.
Here is the application:
The needle bearing will be pivot point of a swing arm of a trike. Another will form the central pivot point that breaks the vehicle from...
Hi Baluncore,
I actually head changed the tilt mechanism a bit. Though concept of having a spring remained the same.
For your info, the bidirectional spring by itself did work.
But in my system it did not work as intended.
Firstly you were right about having a step in force at zero...
Thank you for your reply. Can you please tell me why exactly a torsion coil spring cannot be used in both directions? Check image spring 4. There are so many guidelines that suggest not to use torsion coil spring in uncoiling direction. What happens if we do? Both short term and long term...
For 2) So the cam will be attached to the moving part and clamps to fixed part? I did not understand the mechanism well
3)Ok
4) Why is that? Why will they not give ma firm return position? Is it no matter how fine I adjust preload, there will be some off balance or it will be like an inverted...
@RogueOne: I was just curious. I guess for the kind of set ups used in motorcross, it must be a thumb rule/general guideline as you suggested. Thanks you so much.
@jack action: Could be. Maybe mountain bikes need to be stiff for rough rides. Thanks again
Are you familiar with tilting vehicles. The above image is what I plan to make. For the rear wheels , they can have any form of suspension such as swing arms/trailing arm, double wish bone etc. But for tilting the frame/seat vs the rear wheels I need to have pivot point. I want to add a return...
@jack action
My car example has a 293 lb/in spring rate and a motion ratio of 1.7, that gives a wheel rate of 101 lb/in. A bicycle that would have a 700 lb/in spring rate and a motion ratio of 2.67 (say, 4 in wheel displacement for 1.5 in of spring displacement) would give a 98 lb/in wheel...
@RogueOne
I used to race motocross (with motorcycles) and we would specifically set up our shocks to allow the height of the rear of the bike to "sag" (lower) by almost exactly 4 inches when we would stand on the footpegs with all of our weight. Our total suspension travel was 13" and we would...
Effective spring constant is usually changed by moving the spring attachment point along a lever relative to the fulcrum. For a torsion spring made from a torque tube or rod, changing the active length would change the spring rate.
I understand you can theoretically change stiffness of spring...