SOHC.co.uk Forums > CB350/400
CB400 Swing arm Collar
Clem2112:
My 63 year old Matchless appears to have either Oil-lite or ph-bronze bushes for the swing arm which show little wear despite the half baked way the assembly is sealed on these old bikes.
Even the engine uses a similar material for the main crankshaft bearing on the timing side and for the camshafts. Only the big end has a roller bearing setup.
Footnote....
After getting the powder coating done the frame parts for this oldie the finish looks even better than my much younger 400/4 did. I suspect the Plumstead paint was applied without the influence of the accountants.
Clem2112:
Quality is a widely misunderstood and banded about word.
If Hondas were built to last 5 years, say? , at low cost and selling at an affordable price, but deliver reliable service to the customer then the makers would consider the bike was of high quaility.
If they had anticipated that some of their bikes would last even longer then perhaps their products were too good. Over engineering in design and manufacture would be seen as waste in their eyes.
K2-K6:
I don't think needle rollers have any problem in that application, it's keeping any bearing clean and lubricated that make it survive generally.
Two stroke little end bearing are usually needle/roller type and the only move in a similar angled range as a swing arm.
Also, taper rollers area just another version of needles. Fine in car wheel bearings and again invoice frame headstock with no rotational cycles, just low back and forth angular movement.
Green1:
I don't think Head stock bearings are under much pressure and don't take the same kind of punishment. They also have a chance to lube there self when turning the bars lock to lock when moving the bike around.
Little end bearings are lucky enough to get a constant supply of oil.
Rob62:
Steering head bearing are under plenty of load..... needles are great but like all roller/ball bearings they need to be kept clean.
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