What are the directions for removing the bottom bracket bearing caps?

Asked by: Liz Mesa

The common threading for bottom bracket shells is called “English.” The left-side cup is a right-hand thread direction, which tightens clockwise and removes counterclockwise. The right-side (drive-side) thread is a left-hand thread, which tightens counterclockwise and loosen clockwise.

How do you remove a bottom bracket cover?

Quote from video: Make sure the tool is fully and evenly engaged on the tool fitting. Apply pressure to the tool while loosening. So it does not slip off under heavy load.

How do you remove the bottom bracket bearings?

Quote from video: And lessen to flexing the frame strike the tools squarely. And confidently reverse the tool and push the guide up to the frame to Center the tool strike the tool as before to remove the second.

Which way do you turn the bottom bracket?

Quote from video: Bottom bracket standard which means that the right hand side cup has a left hand side thread so we need to unscrew it clockwise as we would be screwing in the normal right hand side thread.

Are bottom brackets reverse threaded?

Like pedals, one side of a BSA standard bottom bracket shell is reverse (left) threaded, while both sides of an Italian standard bottom bracket shell are regularly (right) threaded.

Can you remove bottom bracket without tool?

Even if you don’t have a bottom bracket tool, you can still remove the bottom bracket from your bicycle’s frame. First, remove the crank arms from the bottom bracket and use a wrench to loosen the bolts that hold it in place. Finally, use your hands to pry the bottom bracket out of the frame.

How do you install a bottom bracket spacer?

Quote from video: Place the required o rings on the spindle. Next apply lubricant to the thread in the frame of the bank. Slide the bottom bracket into the frame and thread it into place in a counterclockwise.

How do you remove a bearing?

Quote from video: And push down really hard on one. Side. Now just put back on one of those small washers. Screw on the axle nut by hand and then just take your skate tool.

Do I need to grease the bottom bracket?

In the case of the bottom bracket, you will use the grease when you install it, whether it is threaded, press fit or similar, and in the same way when you install or clean the cranks. The point of contact of the cranks with the bottom bracket should be greased too.

How do you take a threaded bottom bracket off a mountain bike?

Usually you will go counter-clockwise to loosen up the bottom bracket cup. Next, move to the drive side and now this will be reverse threads, so you will loosen up the bottom bracket cup going clockwise. Continue to spin both sides out until they are out of the frame.

How long should bottom bracket bearings last?

As for a bottom bracket, on the low end, maybe 5000 miles. The basic Shimano one most people use (UN51/55/similar) can reasonably expect 10k+ miles. But sometimes you get unlucky and get a bottom bracket that lasts maybe 500 miles.

How do you remove the bottom bracket on a mountain bike?

Quote from video: So starting with the left hand crank arm. Here need to undo the pinch bolts. We work on one at a time. So just clapping each one off gently. You don't undo one all the way.

How do you remove a bike crank without special tools?

Quote from video: And then take a rubber mallet you can hit this gently. And evenly and tap the other side out to remove your crank from. And this is an external bottom bracket.

What is a sealed bottom bracket?

Sealed cartridge bottom brackets are normally two pieces, a unit holding the spindle and bearings that screws into the bottom bracket shell from the drive side and a screw-in support cup (often made of light alloy or plastic) that supports the spindle and bearing assembly on the non-drive side.

How do you remove press fit BB cups?

Quote from video: As you push it through the bearing. And then expand outwards just after you've got it through that initial bearing. And then you can tap the other end and whole Cup slides. Out.

What is a sealed bottom bracket?

Sealed cartridge bottom brackets are normally two pieces, a unit holding the spindle and bearings that screws into the bottom bracket shell from the drive side and a screw-in support cup (often made of light alloy or plastic) that supports the spindle and bearing assembly on the non-drive side.

How do you remove BB cup and cone?

Quote from video: The left hand cup is the adjustable. Cup. Remove the left cup and collect the balls from the left side they may be loose or in a clip. Pull out the axle.

How do you remove a fixed cup?

Quote from video: And just try to get it all coated into the threads of the fix cup here and let that soak in there for a while okay now to remove this I'm going to use a homemade tool I got this from Sheldon Brown's.

How do you remove a square taper bottom bracket?

Quote from video: And clockwise keep going till it starts to pull it off. And off it comes. And then just and do that again remind your tall out. And like that there you go that's how you remove doubt to arms.

How do you remove tapered square?

Quote from video: You usually just need one good push. And it should break it loose from the bicycle. From here the crank should just slide right off.

What does Square Taper mean?

Traditional cotterless cranksets use a tapered square spindle (axle) end. The sides of the end taper at a 2 degree angle compared to the centerline, 4 degrees compared to each other. Square, tapered end of cotterless crank spindle with fixing bolt and washer.