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  • Users: ErikPSS
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  1. ErikPSS

    Searching for 35x72 ABS Wheel Bearing w/ 44 Pole Pairs

    Hello, I apologize in advance for cross-posting this from Sensors, as I'm not sure where it belongs. Please move or delete as needed. I am searching for an angular contact ball bearing with an incremental single track magnetic encoder seal with 44 pole pairs. inner Ø 35,0mm outer Ø 72,0mm I...
  2. ErikPSS

    Automotive Magnetic Encoder Seal Bearings: Interchangable?

    Hello, I have an application with an NTN AU0850-5LXL (42x80x45) magnetic encoder seal bearing that I would like to replace with a 35x72 encoder seal bearing. Are these likely to interchange electronically? That is, is the total number of poles in automotive encoder seal bearing fixed to some...
  3. ErikPSS

    Are sta-bars still used for roll resistance in non-aero racing? If so, why?

    Following a couple of threads here on sta-bars, I understand the need to increase roll resistance (without uncomfortably high ride rate) to meet passenger comfort expectations and prevent excessive camber gain, which would reduce tire grip. In aero racing, aero devices require ride height and...
  4. ErikPSS

    A Survey of Guidelines for Specifying Dampers

    Thank you for the references in past threads -- the paperback introduction by Staniforth was helpful to get oriented, and the Millikens and Gillespie textbooks taught me to find CG, then correctly estimate longitudinal and lateral load transfers, and finally solve for critical damping. I also...
  5. ErikPSS

    Select Coilover Spring Rate by Available Wheel Bump Load = Peak Braking/Acceleration Load?

    In my last post, I solved for coil bind at full shock compression. It was an interesting exploration of that limit, but helpful replies by Greg and Brian pointed out the trike would be terminally undersprung at high accel/decel, so I am returning to the more traditional approach of solving for...
  6. ErikPSS

    A Novel (or Naive?) Method of Coil Spring Rate Selection

    TLDR: Can I find the softest spring by: height remaining after preload, at full shock compression = spring solid height? 16" extended shock with 12" 150lb/in spring under 715lbm static load compresses 4.75" to 11"; add 3.6" preload to get to ride height of 14.7". At full compression, there's...
  7. ErikPSS

    Lateral grip: Optimize for wheel bump travel or shock stroke?

    Context Reverse trike on double-wishbone IFS with coilovers Objective Improve lateral grip Decrease roll Method Reduce load transfer -decrease CG --lower ride height Current static ground clearance: 6" Target static ground clearance: 5" Current static ground clearance of 6" - target static...

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