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I wouldn’t worry about Abec 3 Vs 5 in an application like this.
I worked for INA for 10 years. For anyone reading this in the future I saw some recommendations to just replace this bearing with 2 single bearings. Do NOT do that. The LD17/32 is a double row angular contact bearing. Here is a pic of the internals and as you can see the angles give a huge amount of stability since they effectively support the shaft beyond the width of the bearing : see where the angled lines meet at the shaft center. This design is meant to take some axial load as well as radial load. This is also why most wheel bearings are double row angular contact bearings.
the LD series is not a very common series at all from what I can remember. Then add in all the required automotive markups and this is 1 expensive bearing when it probably costs just a few bucks to make!
to put it another way: if you are standing on two legs are you more stable with your legs vertical next two each other (as would be the case if you used 2 regular single row radial contact ball bearings) or are you more stable with your legs apart?
regarding the markings:
INA = company
0045 = not sure
14 H 0531 = probably a production date code / factory code
LD 17/32 2RSR AH04 = part #
17mm ID
32mm OD
2RSR = sealed both sides
AH04 = something a bit special / out of the ordinary and this could be anything such as an extra big chamfer, a change in dimension, special grease etc or even a combination of special features so without the factory drawing it’s practically impossible to tell
04-10-2023, 09:47 PM
