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Last Post: Andy56
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1 Week Ago
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XL FORUM TEAM MEMBER
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Join Date: Nov 2017
Posts: 546 Sportster/Buell Model: XLCH Sportster/Buell Year: 1972
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rear hub bearing change
I put new bearings in my rear hub some time back, but now that I think about it, they kind of slipped in easy with finger pressure for the most part.
Is this all right, should I take them out and raise some nubs with punch, should I get a new hub, or what?
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1 Week Ago
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MetalWorkingXLFan
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Join Date: Jun 2011
Location: Far West Texas
Posts: 560 Sportster/Buell Model: XL1200V Sportster/Buell Year: 2013 Sportster/Buell Model #2: KHK Sportster/Buell Year #2: 1954 Other Motorcycle Model: Valkyrie Other Motorcycle Year: 97
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My ‘76 rear hub was the same way. Very easy in and out with the bearings on both sides.
Good fit with no shake but not a press fit.
I was kind of shocked when I went to cast wheels with Timkens and found out how much interference fit they had.
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'54 KHK (Current Build), '13 XL”72” Hard Candy, '97 Honda Valkyrie. I’m Retired 🥃
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1 Week Ago
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Senior Master Custom Bike Builder
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Join Date: May 2010
Location: Pottstown PA.
Posts: 14,284 Sportster/Buell Model: xlch Sportster/Buell Year: 1960
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Quote:
Originally Posted by Gold Member
raise some nubs with punch,
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i remember hearing about that from the machinist i used when i did overhead crane service.
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72 1000cc barrels and heads, s&s 41/2'' flywheels, sifton cams, s&s super B w/ zippers thunderjet w/yost powertube, andrews gears,and shafts, competition engineering kevlar wet or dry clutch, 72 oil pump, morris magneto w/auto advance and single fire module, cycle electric generator w/electronic regulator,73 cu.in.
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1 Week Ago
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XL FORUM TEAM MEMBER
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Join Date: Jun 2010
Posts: 11,892 Sportster/Buell Model: 1200R Sportster/Buell Year: 2005 Other Motorcycle Model: 5 bikes and 1 quad
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Quote:
Originally Posted by Gold Member
I put new bearings in my rear hub some time back, but now that I think about it, they kind of slipped in easy with finger pressure for the most part.
Is this all right, should I take them out and raise some nubs with punch, should I get a new hub, or what?
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I would, and you can also use the bearing lock material (it's like locktite for bearings). I used it for a crank main bearing on a RM125 many years ago. It held for a long time, but eventually the heat got to it. When it would fail, you could see the magnito moving in and out as the bike ran. I did also stake it like you mention and that is a great idea too. I don't think the hub will get as hot as the crank bearing did, so I think it will help you. |
1 Week Ago
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Custom Bike Builder
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Join Date: Dec 2014
Location: Phoenix
Posts: 2,314 Sportster/Buell Model: xlch Sportster/Buell Year: 1964 Sportster/Buell Model #2: XLCH IR EFI Sportster/Buell Year #2: 1971 Other Motorcycle Model: BMW K1200RS Other Motorcycle Year: 2001
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Stippling.
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1 Week Ago
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XL FORUM TEAM MEMBER
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Join Date: Nov 2017
Posts: 546 Sportster/Buell Model: XLCH Sportster/Buell Year: 1972
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Quote:
Originally Posted by wedge
I would, and you can also use the bearing lock material (it's like locktite for bearings). I used it for a crank main bearing on a RM125 many years ago. It held for a long time, but eventually the heat got to it. When it would fail, you could see the magnito moving in and out as the bike ran. I did also stake it like you mention and that is a great idea too. I don't think the hub will get as hot as the crank bearing did, so I think it will help you.
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Duh I didn't even think of Loctite (680 I think) and I happen to have a bottle I used on my fork stem bearings. 
Last edited by Gold Member; 1 Week Ago at 02:43..
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1 Week Ago
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Master Custom Bike Builder
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Join Date: Dec 2011
Location: under a roof
Posts: 3,009 Sportster/Buell Model: xlh 1000 69 79 xlch Sportster/Buell Year: 1977 Sportster/Buell Model #2: 80 FXE 82FLH 83FXR Other Motorcycle Model: 78FLH 79xlch 96xl 79xlh
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I remember changing them in the 70s on low mile bikes, they were a slip fit from the factory, just a light tap had them in and out.
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I'm not a complete idiot, some parts are missing. not enough room to list all my harleys.
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