Rear Upright CDR Mike Ornstein 11/6/2012. Bearing Selection: Prime Option SKF 61817-2RZ (85mm bore,...
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Transcript of Rear Upright CDR Mike Ornstein 11/6/2012. Bearing Selection: Prime Option SKF 61817-2RZ (85mm bore,...
![Page 1: 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.](https://reader035.fdocuments.us/reader035/viewer/2022081501/56649d0b5503460f949de7ac/html5/thumbnails/1.jpg)
Rear Upright CDR
Mike Ornstein11/6/2012
![Page 2: 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.](https://reader035.fdocuments.us/reader035/viewer/2022081501/56649d0b5503460f949de7ac/html5/thumbnails/2.jpg)
Bearing Selection: Prime Option
• SKF 61817-2RZ (85mm bore, 0.27kg (0.15kg in front) – 0.59lb)– Deep groove
![Page 3: 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.](https://reader035.fdocuments.us/reader035/viewer/2022081501/56649d0b5503460f949de7ac/html5/thumbnails/3.jpg)
Bearing Selection: Alt Option
• KB035XP0*RBC (3.5” bore, 0.27lb)– X-type Thin Section
![Page 4: 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.](https://reader035.fdocuments.us/reader035/viewer/2022081501/56649d0b5503460f949de7ac/html5/thumbnails/4.jpg)
Solid Model
Rear: 2.06lbs
Front: 2.18lbs
Old: 1.85lbs
![Page 5: 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.](https://reader035.fdocuments.us/reader035/viewer/2022081501/56649d0b5503460f949de7ac/html5/thumbnails/5.jpg)
Engineering Drawing
• Coming Soon
![Page 6: 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.](https://reader035.fdocuments.us/reader035/viewer/2022081501/56649d0b5503460f949de7ac/html5/thumbnails/6.jpg)
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
![Page 7: 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.](https://reader035.fdocuments.us/reader035/viewer/2022081501/56649d0b5503460f949de7ac/html5/thumbnails/7.jpg)
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
![Page 8: 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.](https://reader035.fdocuments.us/reader035/viewer/2022081501/56649d0b5503460f949de7ac/html5/thumbnails/8.jpg)
![Page 9: 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.](https://reader035.fdocuments.us/reader035/viewer/2022081501/56649d0b5503460f949de7ac/html5/thumbnails/9.jpg)
![Page 10: 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.](https://reader035.fdocuments.us/reader035/viewer/2022081501/56649d0b5503460f949de7ac/html5/thumbnails/10.jpg)
![Page 11: 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.](https://reader035.fdocuments.us/reader035/viewer/2022081501/56649d0b5503460f949de7ac/html5/thumbnails/11.jpg)
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
![Page 12: 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.](https://reader035.fdocuments.us/reader035/viewer/2022081501/56649d0b5503460f949de7ac/html5/thumbnails/12.jpg)
![Page 13: 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.](https://reader035.fdocuments.us/reader035/viewer/2022081501/56649d0b5503460f949de7ac/html5/thumbnails/13.jpg)
![Page 14: 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.](https://reader035.fdocuments.us/reader035/viewer/2022081501/56649d0b5503460f949de7ac/html5/thumbnails/14.jpg)