Plastic bearing seals for headset- which way do they go?
07-12-20, 05:17 PM
#1
Senior Member
Thread Starter
Join Date: Oct 2017
Posts: 2,045
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 838 Post(s)
Liked 1,082 Times
in
522 Posts
Plastic bearing seals for headset- which way do they go?
Will get pics as soon as I can, but I知 working on this 88 six fifteen and realized I知 not sure which direction the black plastic seals under the fork bearings and headset bearings face. They both have a ridge. Fork seems a little stiff when I try and turn it, but not so bad. I hope this makes sense before I can get some pics up. First headset I致e assembled with these.
07-13-20, 08:42 AM
#2
Senior Member
Join Date: Nov 2004
Posts: 23,223
Mentioned: 654 Post(s)
Tagged: 1 Thread(s)
Quoted: 4722 Post(s)
Likes: 0
Liked 3,038 Times
in
1,876 Posts
I'm not familiar with the particular Tange headset used on the 1988 Miyata 615 but typically the orientation of the seal is with the larger diameter lip at the bottom, against the seat of the crown race or upper stack pressed race. Sometimes this lip fits just inside the cup, while other times it protrudes, sitting between the cup and crown or upper stack pressed race. Attached diagram illustrates the latter design, with the seal being the solid colour.
Likes For T-Mar:
