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  • Users: cybanical
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  1. cybanical

    Gearbox pressure buildup and breather calculations

    I'm designing a new gearbox that operates submerged in water, and working on calculating how much oil I need, and if I need a breather for the vapor pressure buildup (hoping not). What references exist for determining oil type and level required? What references might you have for determining...
  2. cybanical

    Moment load capacity of a needle or cylindrical roller bearing?

    Following up from this conversation: thread821-159659 Can a cylindrical roller element bearing support a moment load? I would assume the calculation would be the assumption of a point contact at the ends of the roller from a radial force couple. The equivalent radial load being that due to the...
  3. cybanical

    Should I mask the bore of a bearing housing for anodizing

    I've got some bearing bores that I want some tight tolerances for proper interference fits. Should I have the machinist mask the bore prior to anodizing, or specify tolerances on finished part, fully anodized? I guess I'm wondering how to account for the plating thickness (since it can vary)...
  4. cybanical

    Split Bearing Cap Housing with Rolling Element Bearing

    I don't see this in practice much so I wanted to know: if anyone as experience with using a split bearing cap to make a housing for a rolling element bearing. In particular I'm looking to use a relatively narrow section (6903) deep groove ball bearing with a rotating shaft for oscillatory...
  5. cybanical

    Needle bearing allowable axial misalignment and small angle rotary oscillation.

    I've been digging through the catalogs but have had some difficulty finding the allowable axial misalignment of a needle bearing (drawn cup or otherwise). I've got an oscillatory application (~10degrees motion) that has limited radial space, and requires a yoke to reach to either side of the...

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