The noise is mostly noticeable when in a quiet room but not outside. It’s not all about the fun, because maintaining your bike also keeps you safe and away from injuries. The hub and wheel should also be clamped well together. Re-grease. While lawyer lips will prevent a wheel from coming off it the quick release is loose, they don't prevent a loose wheel from wobbling, and they don't provide any protection at all if the skewer breaks. Work your way around when you are cleaning or inspecting them to make sure they’re not lost. Removing Cartridge Bearings Pull off the axle end caps. However, it’s easy to overdo this tightening and end up with a wheel that doesn’t spin freely, causing premature bearing wear. your price $22.99. Test as tlg suggested, wheel off the bike turn the axle by hand. 89 The rear hub also absorbs a lot of impact and stress especially if you ride on gnarly trails. Note that having a bike isn’t just about riding it. If it moves even a little bit, it’s loose. Take notice if there are any gaps as you roll the axle because you cannot fix a damaged axle. And you’re done. Non-cog side sits outboard of the bike, and is accessible to mechanic. Sunlite Loose Ball Bearings, 1/4", Bag of 144. Place cog side of wheel into left rear dropout. With any luck, you won’t have scored the bearing race inside the hub. ... 2 x Bicycle Rear Wheel Axle 1/4 Inch x 7 Ball Bearing Cages Pair Bike US. Wobble it up and down a few times. Is this hub just too loose or could it be missing a bearing? 58 Join Prime to save $0.96 on this item If your bike has cartridge bearings, … Rear wheel bearings start to show lateral play every 15ish miles. Hold your bike steady, grab the wheel at its highest point and move it from side to side. Designs may vary between manufacturers, but the basic principal rem… I overhauled this wheel about two … These systems often have no lock nut. Hub loose ball, retainer and cartridge bearings JavaScript seems to be disabled in your browser. Campagnolo FH-RE004. The number represents how many 1/1000 inches is maximal deviation from nominal dimension.The lower the number after G mark, the closer a ball is to a perfect sphere of a given dimension. If the cogs touch or interfere with the frame, remove rear cogs. This means that the extra pressure on the lock affects the bearing adjustment. You can adequately measure the excess by counting the number of threads in a quick-release hub. Many mountain bike users sometimes take for granted one of the most used and crucial parts — rear hubs. How To Install A Rear Derailleur On A Mountain Bike, Step-By-Step Guide on How to Tighten Rear Hub on a Mountain Bike, Step 6: Adjust and re-install the rear hub. If it stiff or rough at all then there's a problem. All was good for a couple of days, then yesterday I noticed a knocking / rattling sound from that area whilst riding, so checked when I got home and the freehub is loose, with a good couple of mm of movement. Don’t mix up any cleaning agent or solution to your free hub as this can corrode its surface. Go to next slide - Shop by Bearing Type. About a week ago I noticed a bit of play in the bearings, so took them out (ball & cone), gave it all a clean and regrease and re assembled. Even with the move to cartridge bearings, the nuts are often still called the same thing. Get the best deals on Bicycle Bearings for Hub/Wheel when you shop the largest online selection at eBay.com. Many low-end bikes come with solid-axle (non-quick-release) rear hubs. The bike shop ended up doing the rear wheel and I did the front ... suffice to say that the rear wheel is fine, while the best I can say about the front is that 'it spins'! So, I'm thinking bearings. Note to self: don’t write a blog about ball bearings in bike parts, it’s a bloody nightmare. It is instead best to check on it closely through a magnifying glass. Place the wheel on the side. Note that there’ll be a play in your axle when you move it outside the bike. On conventional hubs (that is, ones with loose balls inside them), the cones are the outer bearing surface and can be adjusted to take up slop. If your hub has press-fit cartridge bearings, it might not have any way of adjusting the hub tension. Make sure that the balls are properly seated inside. If your bike wheel is wobbling or isn't spinning as freely as it should be, then your wheel bearings may be causing the problem. On some wheels (Mavic, among others), the nut may not even look like a nut – it may be a flat disk with holes in it that a pin spanner fits into. Wheel bearings keep your bike wheel spinning smoothly, with small ball bearings reducing friction. This also maintains its exact sequence. Catch any bearings that might fall off. 7 balls caged usually equals 9 balls loose on a full-sized axle. Sunlite Loose Ball Bearings, 1/4", Bag of 144. It's definitely coming from the hub. Even though this is only a small amount of movement, the distance to the rim amplifies the wobble. As an Amazon Associate, I earn from qualifying purchases. This helps you avoid any unnecessary damage you might do when tinkering with the hubs or other parts. Replace damaged tires before riding the bike. There's a freewheel and at least two additional bearings in the rear wheel, all of which add drag. Usually the problem will be caused by wear in your bearings or … Check your inbox or spam folder to confirm your subscription. Spin each wheel and check for brake clearance and side-to-side wobble. Jaceyon Bike Ball Bearing Retainer Replacement Mountain Bike Parts 5/21" x 7 Balls Repair Accessories for Bicycle Rear Wheel 4 Pcs 4.0 out of 5 stars 71 $8.89 $ 8 . But it should have no play when attached to the bike. It is important to tighten the cone lock nut fully once you get everything in place. All parts must be dry before you assemble it. My rear hub keeps coming loose which causes the rear wheel to wobble. To check your bearing adjustment, put the wheel into the bike with the quick release just barely tight enough to keep the wheel from falling out. $2.07. Again, it is better to put too much grease than not enough at this point. Grades are noted in numbers, ranging from 3 to 2000. This guide will take you through the steps required to change out your old bike wheel bearing and replace it. Luckily, it is unlikely that worn cartridge bearings will do any lasting damage to other components so feel free to ride out. Dust cap loose after cone & bearing replacement. It’s best to replace them if they’re already very rough and dull. There's a freewheel and at least two additional bearings in the rear wheel, all of which add drag. Do this by first removing the quick release skewer Remove the axle nuts if it’s an axle type. Refer to the drawing on the first … The rear will never spin as freely as the front. A common yet often overlooked culprit are the hub cones. Start by removing the cogs on the drive side. Buy PART NUM 943834. Bearings are small round metal objects that help your wheel rotate smoothly. Adjust Cup & Cone Wheel Bearings On Your Bike - Maintenance Monday The fast way to re-grease your bearings is by just shooting grease in the bearings, … Use a damp cloth to wipe and clean all the parts you’ve just removed. Test as tlg suggested, wheel off the bike turn the axle by hand. You need to tighten it at once to prevent accidents and injuries. Rough means a bad bearing. Catch any bearings that might fall off. A hub that is not locked tight to the frame may lead to a slight play on the axle. Step 2: Remove the rear wheel. Clean All Parts Not Already Cleaned With a Suitable Solvent. If your wheels have a different system (such as the Mavic one described above), you will most likely need to improvise a tool from Allen wrenches or a screwdriver. insert the wheel axle and bearing (red side out) Slide the wheel onto the axle and use tool #1 or #2 and a synthetic hammer to press in the bearing. I overhauled this wheel about two … Joined: Jun 2011. Always seek professional help from bike shops in case you encounter difficulties in tightening it. The quick check for rear bearings is to slowly backpedal with the bike off the ground. Ball imperfections come in various term… Take your wheel off and hold the axle. Buy PART NUM 943834. It's something I've never done before and I don't Then lubricate your free hub body lightly. Spin each wheel slowly and look for cuts in the tread and sidewall. Iv filled the rear hub with automotive grade wheel bearing grease too. You may also feel or hear a “clunk” that seems to be coming from your suspension (fork or shock). Then place the heaviest part of the wheel, which is usually the valve (or wheel reflector if you have these), at 3 o’clock. Wheel bearings keep your bike wheel spinning smoothly, with small ball bearings reducing friction. ... Campagnolo Right Rear Freehub Loose Ball Bearing Set 7/32" Campagnolo Loose Ball Bearings Bag of 10 … read more. This is a newly acquired bike, so unknown history. You may find that tightening your quick release skewers seems to help temporarily, but the problems quickly return…. This is a newly acquired bike, so unknown history. This improves the bike’s performance and ensures they stay in pristine condition. And loose parts do not a happy ride make. Newer free hubs are more complicated, though. It's something I've never done before and I don't Loose ball bearings Loose ball bearings are the most traditional and require the use of bearings with a mated cup and cone. Dust caps are fragile and placing pressure on them may lead to damages. Bicycle Mechanics - Rear hub noise - I'm hearing noise when I spin the rear wheel. My old bike had over 300 miles and did not have this issue. They can work loose, introducing play into the bearings and leading to a rattly wheel. Hold your bike steady, grab the wheel at its highest point and move it from side to side. All 70 miles has been with the engine kit on it. Lanturn Bicycle Wheel Bearing Retainer 4/21 inch x 7 Balls,4 Pcs Ball Bearings for Bike Rear Wheel, Kids/Stretch Bicycle $9.58 $ 9 . The rear will never spin as freely as the front. Turn the wheel from side to side and let it roll stationary at once to check if all is in their designated place. Also, make it a habit to have a clean and well-maintained mountain bike so you can have a more enjoyable ride. You can not check your bearings by just evaluating its smoothness. abrookewood New Member. Use your pencil magnet in removing the bearings. regularly check this to ensure a smooth ride and without worrying it would break. Start your assembly by greasing lightly on the axle thread and heavily on the inside of the hub shell cups. Not to mention that you need to do additional servicing and maintenance on surrounding parts. Then slowly lift the wheel up by supporting it with your arms. Use your pencil magnet in removing the bearings. This is normally the equivalent of tightening the cone completely and then backing it off between one sixteenth and one eighth of a turn, but it will depend from hub to hub. All 70 miles has been with the engine kit on it. Generally, when overhauling hubs or bottom brackets that come with retainers, it is better to use loose balls. 89 Knowing the exact process of tightening the rear hub is necessary to make sure it’s properly installed later on. On the rear wheel, shifting may be off. Copyright © 2006-2012 by Chris Nodder, Licensed under Creative Commons. But doing so requires a lot of technical knowledge. This guide will take you through the steps required to change out your old bike wheel bearing and replace it. Make sure that the ball bearings are smooth. The last thing you want is to find your rear wheel detached to your bike, right? Rebuild a Bicycle Rear Hub: <> Yes, the "bitmap-bandit" is back.....This project is focused on the typical Shimano Hyperglide hub circa 1997-ish, but covers most mid-level freehubs on the market today. And one good example of that is by knowing how to tighten rear hub on a mountain bike. So, I'm thinking bearings. My old bike had over 300 miles and did not have this issue. Do not forget to refer to your earlier measurements when placing back the axle. Turn the wheel over and install the second bearing Using either tool #1 or #2 and a synthetic hammer press in the bearing Grease both bearings and press on the adapters The noise is mostly noticeable when in a quiet room but not outside. You may not realize that your hub is loose for some time. It’s easy to diagnose a loose cassette – hold the rear wheel in one hand, and the cassette in the other, and slide it along the axle. Here are the tools you will need for your work on your rear hub: You’ll find the cup fitted permanently into the hub shell in a basic bearing system. Campagnolo FH-RE004. Although they’re the oldest, in many ways they can be superior. For all other loose hubs, you must tighten the bearings back down. What you are looking for is a pair of nuts on the axle near where the spokes attach to the hub. It's definitely coming from the hub. They are written in the format: GXXXX, where XXXX is a number ranging from 3 to 2000. On the trail with nothing but a big fat crescent wrench, this is going to be a curse-worthy task. It is really smooth off the bike but again it has a small bit of play in one spot on the bearings. “Cone” refers to “cup and cone” – the two pieces that loose bearings sit in. You’ll also notice that the cone is trapping the ball bearing. Every time the wheel will be fine for about 100km and then it will start to wobble again. It is really smooth off the bike but again it has a small bit of play in one spot on the bearings. There should be absolutely no movement besides the spinning it's meant to be doing.