All Questions
Tagged with linear-motion bearings
4
questions
1
vote
1
answer
70
views
Is there such a thing as a double roller/bearing? Two rollers/bearings that share one axis, but can roll independently. [linear/pivot]
I'm looking for two track rollers or bearings that share an axis, but can roll independently of each other. Ideally, they are compact as well ($\leq 1 \text{ in}.$ diameter) and can handle a moderate ...
- 111
1
vote
1
answer
209
views
CNC side linear rails
I've been wondering why most (hobby) CNC machines have two actuated linear rails like this:
Besides the extra force for moving the spindle, is there a need for both rails to be actuated? Could the ...
- 1,033
4
votes
3
answers
538
views
Off-centre actuation
I'm trying to lift a platform with several guides using a linear actuator, but off the centre as follows:
The load on the platform will be around 100kg, which is just within the linear actuator's ...
- 1,033
2
votes
1
answer
53
views
Linear guide ball bearings
I'm planning to drive a small linear guide (4cm long) with a servo in a setup like this:
I wonder if the ball bearings inside would sustain too much stress due to the vertical forces exerted by the ...
- 1,033