Bearing removal tool?
01-24-09, 12:12 AM
#1
W.W.DZ.D?
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Bearing removal tool?
I want to replace the bearings on my Dt Swiss 240s road hubs. I have the press to install them, but I can't seem to find the tool to remove them. Any suggestions. These are sealed bearings, of course.
Is this what I need?
https://www.bicycletool.com/bearingpunch.aspx
Is this what I need?
https://www.bicycletool.com/bearingpunch.aspx
01-24-09, 02:03 AM
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DT Swiss shows that type bearing tool in their kit.
https://www.dtswiss.com/getdoc/99a9c9...Datasheet.aspx
https://www.dtswiss.com/getdoc/99a9c9...Datasheet.aspx
01-24-09, 07:49 AM
#3
Senior Member
The tool that you've referenced won't work unless you can get to the back side of the bearing. I just use a large screwdriver or long punch, inserted from the opposite side and tap gently on the back, near the OD of the bearing. Most are a light press fit and aren't too difficult to remove.
Installing the new bearings requires more care. Only apply pressure to the outer race of a bearing fitted into a bore or the inner race of a bearing pressed onto a spindle or axle.
Installing the new bearings requires more care. Only apply pressure to the outer race of a bearing fitted into a bore or the inner race of a bearing pressed onto a spindle or axle.
02-04-09, 12:27 AM
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That sounds correct. Most of those bearings aren't that tight of a fit. The bearing can be tapped from any point if it is the one being replaced but only tap the outter race on the install.
02-04-09, 12:55 AM
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If you put the new bearings in the freezer first, it'll be easier to tap them in to place.
02-04-09, 01:56 AM
#6
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I usually use a large socket that's the same diameter as the OD of the bearing to tap them in. Or use a press.
02-04-09, 05:10 AM
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+12
To get out that first bearing, Easton suggests a D shaped WOODRUF Key, drop it in from the opposite side, turn 90 degrees and hammer out with a short bar. Have a look at their R3 service manual on the web. I have used a steel hex nut of the correct size in a pinch on a Sunday.
To reassemble I have used a piece of threaded rod with nuts washers and the old bearing as an additional washer. A huge C clamp that I use for squezing in disk brake pistons may work, I will try that next time.
To get out that first bearing, Easton suggests a D shaped WOODRUF Key, drop it in from the opposite side, turn 90 degrees and hammer out with a short bar. Have a look at their R3 service manual on the web. I have used a steel hex nut of the correct size in a pinch on a Sunday.
To reassemble I have used a piece of threaded rod with nuts washers and the old bearing as an additional washer. A huge C clamp that I use for squezing in disk brake pistons may work, I will try that next time.
