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Rear Upright CDR

Rear Upright CDR. Mike Ornstein 11/6/2012. Bearing Selection: Prime Option. SKF 61817-2RZ (85mm bore, 0.27kg (0.15kg in front) – 0.59lb) Deep groove. Bearing Selection: Alt Option. KB035XP0*RBC (3.5” bore, 0.27lb) X-type Thin Section. Solid Model. Rear: 2.06lbs Front: 2.18lbs

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Rear Upright CDR

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  1. Rear Upright CDR Mike Ornstein 11/6/2012

  2. Bearing Selection: Prime Option • SKF 61817-2RZ (85mm bore, 0.27kg (0.15kg in front) – 0.59lb) • Deep groove

  3. Bearing Selection: Alt Option • KB035XP0*RBC (3.5” bore, 0.27lb) • X-type Thin Section

  4. Solid Model Rear: 2.06lbs Front: 2.18lbs Old: 1.85lbs

  5. Engineering Drawing • Coming Soon

  6. General Modeling Conditions • Cases: • Turning (max lateral g -> normal/lateral patch loads) • Braking (max braking forces) • Model: • Element size 0.1”, bearings bonded to upright • Spherical joints at all real life places • Deflections include Suspension Links

  7. Turning • Forces applied at contact patch • Peak normal load from load transfer • Peak lateral load from max cornering • 12.5ksi peak stress (at clevis fillet) • 0.02 deg toe change • 0.01 deg camber change

  8. Braking • Peak forces experienced during braking • Longitudinal due to contact patch friction • Caliper on Upright • Spindle reaction on Upright from Caliper • 16.5ksi peak stress (at lower a-arm pickup) • 0.28 deg toe change • Due to soft toe link • 0.02 deg camber change

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