HOW TO: replacing wheel bearings

Discussion in 'Mini Tutorials & How To's' started by pbk, Mar 16, 2011.

Mini Dirt Bikes

Help Support Mini Dirt Bikes:

  1. Mar 16, 2011 #1

    pbk

    pbk

    pbk

    Certified MR Member

    Joined:
    Jan 2, 2007
    Messages:
    2,701
    Likes Received:
    46
    Location:
    central coast
    i had a quick look and couldnt find any specific thread on wheel bearing replacement

    i found if you dont have the right technique for this like anything an easy job becomes difficult

    you only need a few things to do this a couple of different sized flat head screw drivers, a hammer or some sort a rubber or wooden mallet would be more appropriate, a can of wd-40 the one with extenable piece does make it easier, a tub of grease and a clean rag and forgot to mention a socket that has the same OD as the bearings
    [​IMG]
    [​IMG]
    [​IMG]


    step 1: put your new bearings in the freezer for a few hours, this shrinks them a tiny bit making it easier to install them, leave your wheel out in the sun to heat up a bit, in reverse to the bearigs the heat will open the hole a tiny amount etc


    step 2: pry out the rubber dust seals if you have them

    [​IMG]

    step 3: spray wd-40 around the outer edge of the bearing and inside the hub behind the bearing, this is where the extendable piece helps

    [​IMG]

    step 4: use the flathead head scewdriver and your hammer to tap them out, to do this place the flathead screwdriver inside the hub, make sure you have the flathead screwdriver placed in a way it will not slip into the bearing seal, tap evenly around the bearing till it falls out, do the same to the other side

    [​IMG]

    step 5: clean the inside of the hub out

    step 6: grease the inside of the hub where the bearings will go, fetch your bearings from the freezer and grease the outside race

    [​IMG]
     
  2. Mar 16, 2011 #2

    pbk

    pbk

    pbk

    Certified MR Member

    Joined:
    Jan 2, 2007
    Messages:
    2,701
    Likes Received:
    46
    Location:
    central coast
    step 7: using your socket and hammer gently tap the bearing into your hub evenly

    [​IMG]

    step 8: DONT FORGET to place the spacer in the hub before you put your 2nd bearing in, repear step 8 for your 2nd bearing

    step 9: place dust seals back in and wipe away excess grease

    also i reccomend changing your bearings on your new moto asap as the chinesse ones arent flash hot and its a real ***** getting bearings out when they bust it involves grinding, ill make a new how to next time i have to grind the outer race out, i would also reccomend doing wheel bearings every 6 months to a year depending on how much you ride and the sort of riding you do

    hopefully someone will find this of some use
     
  3. Mar 16, 2011 #3

    MiniFighter

    MiniFighter

    MiniFighter

    Well-Known Member

    Joined:
    Apr 28, 2010
    Messages:
    3,388
    Likes Received:
    110
    Location:
    Newcastle, NSW
    I thought we were talking about swing arm bearings?

    Plus reps mate, good work.
     
  4. Mar 16, 2011 #4

    pbk

    pbk

    pbk

    Certified MR Member

    Joined:
    Jan 2, 2007
    Messages:
    2,701
    Likes Received:
    46
    Location:
    central coast
    yer were but after i did swingarm bearings i thought i would do one one on wheel cos i needed to replace them as well, i find wheel bearings much easier then swingarm
     
    sean01 likes this.
  5. Mar 16, 2011 #5

    sean01

    sean01

    sean01

    Legend Spanner Spinner

    Joined:
    May 28, 2007
    Messages:
    5,934
    Likes Received:
    120
    Location:
    burpengary, brisbane
    good work mate..
    but may i ask where your 4th disk bolt is lol...
     
  6. Mar 16, 2011 #6

    pbk

    pbk

    pbk

    Certified MR Member

    Joined:
    Jan 2, 2007
    Messages:
    2,701
    Likes Received:
    46
    Location:
    central coast
    haha was waiting on someone to pick that up..... um somewhere in the shed i believe
     
  7. Mar 16, 2011 #7

    MiniFighter

    MiniFighter

    MiniFighter

    Well-Known Member

    Joined:
    Apr 28, 2010
    Messages:
    3,388
    Likes Received:
    110
    Location:
    Newcastle, NSW
    I only ever run 2 disc bolts, reduces overall weight and makes you bike faster. Similar effect to paiting parts red.
     
  8. Mar 16, 2011 #8

    Lethalleigh29

    Lethalleigh29

    Lethalleigh29

    Well-Known Member

    Joined:
    Feb 27, 2011
    Messages:
    148
    Likes Received:
    3
    Location:
    Whyalla, South Australia
    Nice one minifighter LOL..
     
    MiniFighter likes this.
  9. Nov 6, 2012 #9

    timeeh

    timeeh

    timeeh

    Go Go Gadget Moderator Supporter

    Joined:
    Nov 5, 2010
    Messages:
    5,547
    Likes Received:
    46
    Location:
    Cantberra, AUS
    The following is how to remove them using a bearing puller. (much easier if your slack like me)
    1) Purchase bearing puller then remove rear wheel, also make sure you have the new bearings in the freezer, doesn't hurt to do this the night before.
    [​IMG]
    2) Pick the correct size bit and insert into the bearing to be removed. (remove dust seal first if you have them)
    [​IMG]
    3) Insert the expander bit into the top of the of the puller bit
    [​IMG]
    4) Tension the two bits together to expand the puller bit
    [​IMG]
    5) Install (screw on) the slide hammer into the expander bit and place the wheel upside down preferable sitting half on the bench to allow the slide hammer to hang down
    [​IMG]
    6) Slide the hammer up and give it a good pull down a couple of times and the bearing will simply fall out :) And thats about it. Installation of the new bearing is as above.
    [​IMG]
     
  10. Nov 6, 2012 #10

    zwebx

    zwebx

    zwebx

    Well-Known Member

    Joined:
    Sep 3, 2012
    Messages:
    3,296
    Likes Received:
    16
    Location:
    Melbourne
    i used to use a long screw driver and put it in on a angle and tap the bearings out... and then use a socket and a hammer to press them back in...
     
  11. Nov 6, 2012 #11

    rotn50

    rotn50

    rotn50

    Master Spanner Spinning Moderator

    Joined:
    Oct 9, 2008
    Messages:
    4,919
    Likes Received:
    42
    Location:
    Nth Qld
    To afford this option you def have to be on better money than the std china rider is, damn timeeh you always showing off, hence the double bar risers. You never looked back after pass the parcel and 2nd is never an option anymore, bday or not haha:focus:, Good stuff mate the puller looks the goods and wont seperate the bearing like an off shot screwdriver will causing headaches with a bearing race needing to be attacked.
     
  12. Nov 7, 2012 #12

    timeeh

    timeeh

    timeeh

    Go Go Gadget Moderator Supporter

    Joined:
    Nov 5, 2010
    Messages:
    5,547
    Likes Received:
    46
    Location:
    Cantberra, AUS
    Torpedo7 have em for about $100, and i now have 6 bikes sitting at home (2 dirt, 2 mini and 2 roadies) Already paid for itself (expecially if you count how much labour is these days to get anything fixed) also found its awesome for removing cush drive bushes :)

    Edit: Currently on special for $79.00 ;)
     
    Last edited: Nov 7, 2012

Draft saved Draft deleted

Share This Page

arrow_white