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All Balls Steering Needle Bearings

Started by 2 Smoker, February 02, 2026, 06:57:17 PM

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2 Smoker

I installed the upper and lower sets and was unable to reach the stem threads with the ring nut due to the protrusion of the bearings from frame neck not seating in properly. Have I missed something here :umm:   

RDnuTZ

1987 TZR250R Restricted Japan Domestic market bike (Project)
1977 RD400 (Project)
1974 RD350 (2) (Projects)
1973 RD250 (Project)
2022 Beta 300 X-Trainer, Yamaha Vintage MX, YZ (18)

2 Smoker

I am going with the sealed ball bearing setup from Economy Cycle instead of the all balls needle set up.

SoCal250

#3
Quote from: 2 Smoker on February 13, 2026, 07:24:36 PMI am going with the sealed ball bearing setup from Economy Cycle instead of the all balls needle set up.
Since you've already got the tapered bearing races installed, why not run the tapered on the bottom and the caged type on the top? The lower is the one that carries the load and that's where tapered bearings perform better. :twocents:
75 Yamaha RD125B   75 Yamaha RD125B (project)
75 Yamaha RD250B   75 Yamaha RD200B (project)
73 Yamaha RD350     77 Yamaha RD400D   79 Yamaha RD400F  
91 Yamaha TZR250R  89 Yamaha FZR400   05 Yamaha FZ6   
05 Yamaha XT225TC  82 Honda MB5  02 Aprilia RS250 Cup (sold)

2 Smoker

Quote from: SoCal250 on February 13, 2026, 08:00:27 PM
Quote from: 2 Smoker on February 13, 2026, 07:24:36 PMI am going with the sealed ball bearing setup from Economy Cycle instead of the all balls needle set up.
Since you've already got the tapered bearing races installed, why not run the tapered on the bottom and the caged type on the top? The lower is the one that carries the load and that's where tapered bearings perform better. :twocents:


Unfortunately while tapping them out the needle bearings were kinda not going to function as designed and they were tossed into the garbage can.