Rear Wheel Bearing Difference, Comparison that may have caused my failures |
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Rear Wheel Bearing Difference, Comparison that may have caused my failures |
914Sixer |
Jan 15 2017, 03:50 PM
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#1
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914 Guru Group: Members Posts: 8,903 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region |
For months now I have maintained there is a big difference in the quality of the new rear bearings verses the original ones. Today I had time to compare an original FAG (Germany)and a new SKF (Italy) bearing shells. MY conclusion is what I suspected, the new ones are NOT the same. I took pictures and measurements to document what I saw. I hope the pictures let you see the difference. Guess which one is the original German one!
Attached image(s) |
6freak |
Jan 19 2017, 08:18 AM
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#2
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MR.C Group: Members Posts: 4,740 Joined: 19-March 08 From: Tacoma WA Member No.: 8,829 Region Association: Pacific Northwest |
storage The conditions under which bearings and seals are stored can have an adverse effect on their performance. Inventory control can also play an important role in performance, particularly if seals are involved. Therefore, SKF recommends a "first in, first out" inventory policy. . Storage conditions To maximize the service life of bearings, SKF recommends the following basic housekeeping practices: Store bearings flat, in a vibration-free, dry area with a cool, steady temperature. Control and limit the relative humidity of the storage area as follows: 75% at 20 °C (68 °F) 60% at 22 °C (72 °F) 50% at 25 °C (77 °F) Keep bearings in their original unopened packages until immediately prior to mounting to prevent the ingress of contaminants and corrosion. Bearings that are not stored in their original packaging should be well protected against corrosion and contaminants. . Shelf life of open bearings SKF bearings are coated with a rust-inhibiting compound and suitably packaged before distribution. For open bearings, the preservative provides protection against corrosion for approximately three years, provided the storage conditions are appropriate. . Shelf life of sealed bearings The maximum storage interval for sealed SKF bearings is dictated by the lubricant inside the bearings. Lubricant deteriorates over time as a result of ageing, condensation, and separation of the oil and thickener. Therefore, sealed bearings should not be stored for more than three years. . Find a distributor Contact us . Contact us for more information . Engineering tools Bearings, units and housings SKF Bearing Calculator SKF Bearing Select SKF Engineering Calculator SKF Housing Select Bearing CAD download Seals Lubrication solutions Linear motion Actuation systems Maintenance Products Condition monitoring Power Transmission Products |
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