Yet Another Cycling Forum
General Category => The Knowledge => Topic started by: andyoxon on 25 June, 2017, 01:02:15 pm
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May be a silly question, though I'm coming up for my first use of HT2 (somewhat reluctantly). A new HT2 BB unit seems to come with a substantial layer of clear grease covering the bearings. Is it recommended that after fitting of the BB and cranks, that for any subsequent removal of the cranks / axle tube, more grease is added to the bearings before refitting the chainset tube? What I mean is, when one pushes the chainset tube through and then removes it say for a different chainset, a proportion of the grease packed around the bearings will be removed. Does this need to be replaced, and could say white lithium grease be added to already present clear grease, or would the bearings need to be repacked...?
How do people generally manage greasing HT2 BBs?
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The bearings are well lubricated to start with. When installing the crank I will put a bead of grease around the outside of the bearing cap and one on the inside of the crank where the axle meets the spider. Same on the non-drive side.
This isn't to assist with lubrication but an attempt to keep the weather out of the bearings. If your bike is used in all weathers then regular removal, cleaning and refitting is good insurance.
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Cheers T. At least from a regular maintenance POV, it's all pretty much easy to take apart.
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I put a smear of grease on the tube before inserting it into the bearings, but don't over do it, the tube is a close fit to the inner race of the bearings and too much grease will just scrape off and pile up in a big dollop behind the chainset.
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Which is exactly what you need to keep the weather out...
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To a point...
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What grease do you use generally..?
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Weldtite TF2. Got a gert big 3kg tin to use up.
For more precise stuff the same but with a needle grease gun...