1162012 Bearing Selection Prime Option SKF 618172RZ 85mm bore 027kg 015kg in front 059lb Deep groove Bearing Selection Alt Option KB035XP0RBC 35 bore 027lb Xtype Thin Section ID: 652369
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Slide1
Rear Upright CDR
Mike Ornstein
11/6/2012Slide2
Bearing Selection: Prime Option
SKF 61817-2RZ (85mm bore, 0.27kg (0.15kg in front) – 0.59lb)
Deep grooveSlide3
Bearing Selection: Alt Option
KB035XP0*RBC
(3.5” bore, 0.27lb)
X-type Thin SectionSlide4
Solid Model
Rear: 2.06lbs
Front: 2.18lbs
Old: 1.85lbsSlide5
Engineering Drawing
Coming SoonSlide6
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 LinksSlide7
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 changeSlide8Slide9Slide10Slide11
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
changeDue to soft toe link0.02 deg
camber
changeSlide12Slide13Slide14