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  • Users: chrispe
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  1. chrispe

    What is Axial Load Rating of R4 Ball Bearing

    Guys: I am having really trouble determing the bearing I need for this application. I have been using an R4, but replaced it with an R4a bearing. Both deep groove. The axial (thrust) load is 300 lbs, the radial load is about 50 lbs. Rather then angular contact, or thrust bearing I need to...
  2. chrispe

    Sprag Clutch in Reversing Application

    Guys: I am trying to make a very simple low power (less then 100 in-lbs max torque) all mechanical drive which couples to a lead screw at a 4:1 ratio in the forward direction and a 1:1 ratio (or lesser ratio) in the reverse direction. The motor is reversible so I thought I could use (2) sprag...

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