tag:blogger.com,1999:blog-9074654920193695267.post7625889336778793962..comments2023-12-24T12:05:31.362+11:00Comments on BYLONG: Improved running quality of Eureka Models HUB Set carsRay Phttp://www.blogger.com/profile/16624865987062727847noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-9074654920193695267.post-27866516369257087962013-07-30T16:23:52.693+10:002013-07-30T16:23:52.693+10:00John
It isn't that easy to measure the bearin...John<br /><br />It isn't that easy to measure the bearing depth so I used the gauge and also ran and ran the HUB set until I was satisfied that they ran well.<br /><br />I just now measured the back to backs on a HUB car and they are between 14.42 and 14.49mm, so a target of 14.45mm would be OK.<br /><br />I have a copy of the AMRA standards and they quote the minimum as 14.4mm and the maximum as 14.50mm so It appears that what I adjusted to complies with the AMRA standard.<br /><br />I am not going to get into any discussion of AMRA versus NMRA standards, I know which one works better.<br /><br />In regard to the through the point gauge measurement, If you have a back to back of 14.45 then the distance from the outer wheel face to the opposite flange would be 17.47mm so the wheel shouldn't drop in between the track gauge.<br /><br />The drop at frogs though is related to the architecture of the point check rails and not so easy to eliminate without making your own points.<br /><br />Ray PRay Phttps://www.blogger.com/profile/16624865987062727847noreply@blogger.comtag:blogger.com,1999:blog-9074654920193695267.post-27242819601286541922013-07-29T23:08:02.126+10:002013-07-29T23:08:02.126+10:00Hi Ray,
I have been toying around with the idea o...Hi Ray,<br /><br />I have been toying around with the idea of using a centre punch to increase the space between the wheel bearing pin points. One of the reasons that I haven't done so is the inability to get a definite measurable increase in the bearing depth. The automatic centre punch hadn't crossed my mind.<br /><br />Did you measure the change in bearing depth? What BTB did you end up using? I think that about 14.7 to 14.8 mm would be ideal.<br /><br />As an aside (of sorts) there are quite a lot of derailments with HUB sets (and some other recent Aussie outline rolling stock) on Peco code 100 points on the Argyle layout in Goulburn. This occurs on double curved points and also on medium and large radius points on the straight section!!<br /><br />I have taken some careful measurements with a digital vernier caliper and have found that the gauge through the point blade area can be up to 17.3mm. No wonder these vehicles get the wobbles.<br /><br />Happy tracking,<br /><br />JohnArgylehttps://www.blogger.com/profile/05107268262089444743noreply@blogger.com