Page 1 of 3 123 LastLast
Results 1 to 10 of 27
  1. #1
    Field Supervisor 500+ Posts
    Join Date
    Dec 2009
    Posts
    678
    Rep Power
    60

    Bearing/insulating sleeve lubrication?

    I have problem to find good lubricant when replacing new bearing and insulating sleeves.
    I try some lubricants in spray bootle but all are pretty much liquid and it does not stay on surface for long time i think.
    Also i think it does not like high temeprature in fusing units...
    Once i got small cup of some lubricant from colleague and it looks like white hand creame, suppose to be from KM originally but i don know how to order that.


    PS: I just try search Infohub and find this
    00GR00260 Grease(Multemp FF-RM)

    Are you use this or something else?

  2. #2
    Service Manager 10,000+ Posts
    Bearing/insulating sleeve lubrication?

    BillyCarpenter's Avatar
    Join Date
    Aug 2020
    Location
    Long Beach, Mississippi
    Posts
    13,375
    Rep Power
    448

    Re: Bearing/insulating sleeve lubrication?

    Personally, if I'm installing a new bearing or bushing, I leave 'em dry. My rule of thumb is if it didn't come from the factory with oil or grease on it, then I don't put it on. I'm talking about new bearings and bushings. If it's squeaking or making a noise, then I will.

    I've seen a lot of techs put grease or oil on a sealed bearing and I've found that of little help because the ball bearings are sealed and the oil really doesn't get in there.


    There's a lot of good oils and greases out there. Just don't use WD 40.

  3. #3
    Field Supervisor 500+ Posts
    Join Date
    Dec 2009
    Posts
    678
    Rep Power
    60

    Re: Bearing/insulating sleeve lubrication?

    I am ok with new bearings, they come with lubrication inside but insulating sleeve does not and it have double friction, with roller on one side and bearing on the second side.
    I have seen insulating sleeves chew up totally and make gap between roller and bearing.

  4. #4
    Service Manager 10,000+ Posts
    Bearing/insulating sleeve lubrication?

    BillyCarpenter's Avatar
    Join Date
    Aug 2020
    Location
    Long Beach, Mississippi
    Posts
    13,375
    Rep Power
    448

    Re: Bearing/insulating sleeve lubrication?

    Quote Originally Posted by Toxic View Post
    I am ok with new bearings, they come with lubrication inside but insulating sleeve does not and it have double friction, with roller on one side and bearing on the second side.
    I have seen insulating sleeves chew up totally and make gap between roller and bearing.

    What new bearings are you talking about that come with lubrication from the factory? In my experience most don't. The service manual will usually specify which need lubrication. And I know for a fact that the brass bushings that are used in a copier are meant to run dry. I've seen techs oil the brass bushings or worse, put grease on 'em and every particle of dirt gets attracted to the brass bushing and wears a groove in the shaft. Cleaning is what is called for with those, not grease or oil.

    When you say insulating sleeve, are you referring to the fuser?

  5. #5
    Field Supervisor 500+ Posts
    Join Date
    Dec 2009
    Posts
    678
    Rep Power
    60

    Re: Bearing/insulating sleeve lubrication?

    Yes, i am talking just about fuser bearings and insulating sleeves.
    I never open new bearing to check but i think it must be some lubrication inside, that is why they are almost sealed from both sides and without problems they survive 1-2 mil. copies at high temperatures.

  6. #6
    Service Manager 10,000+ Posts
    Bearing/insulating sleeve lubrication?

    BillyCarpenter's Avatar
    Join Date
    Aug 2020
    Location
    Long Beach, Mississippi
    Posts
    13,375
    Rep Power
    448

    Re: Bearing/insulating sleeve lubrication?

    Quote Originally Posted by Toxic View Post
    Yes, i am talking just about fuser bearings and insulating sleeves.
    I never open new bearing to check but i think it must be some lubrication inside, that is why they are almost sealed from both sides and without problems they survive 1-2 mil. copies at high temperatures.

    Here's my experience with fuser bearings/bushing. I never put oil on them because the high temperature of the fuser is gonna burn the oil off and smell up the customer's office. If you need to use grease, use a high temp. grease.

  7. #7
    Service Manager 10,000+ Posts
    Bearing/insulating sleeve lubrication?

    BillyCarpenter's Avatar
    Join Date
    Aug 2020
    Location
    Long Beach, Mississippi
    Posts
    13,375
    Rep Power
    448

    Re: Bearing/insulating sleeve lubrication?

    One last thing and I'm gonna be completely honest.


    There are times when a machine is squeaking and if the bearing is hard to get to, I'll roll the dice and put a few drops of oil on it. Sometimes it works great, other times I get a callback and then have to disassemble/inspect or replace the bearing/shaft.

    I used to work for a company and one of the techs would NEVER do anything but drop some oil on a worn bearing. He thought he was being smart because he knew the squeak would go away for a few days or long enough for him to get out the door and most of the time another tech would go behind him to fix the problem. That worked for a while until he almost got fired.

  8. #8
    Technician konicavod's Avatar
    Join Date
    Feb 2020
    Location
    Minsk
    Posts
    24
    Rep Power
    9

    Re: Bearing/insulating sleeve lubrication?

    Quote Originally Posted by Toxic View Post
    I just try search Infohub and find this
    00GR00260 Grease(Multemp FF-RM)
    you need molykote hp-870

  9. #9
    RTFM!! 5,000+ Posts allan's Avatar
    Join Date
    Apr 2010
    Location
    Centurion
    Posts
    5,387
    Rep Power
    152

    Re: Bearing/insulating sleeve lubrication?

    Only current machine i work on where the manual instructs to smear a thin layer of high temp grease on the sleeves only would be the Pro951 and up.
    That is also not to lubricate but to set the sleeves in place. Been using Q20 and since then not a single chewed heat sleeve after that.

    Also don't like to lube things.
    Whatever

  10. #10
    Master Of The Obvious 10,000+ Posts
    Bearing/insulating sleeve lubrication?

    blackcat4866's Avatar
    Join Date
    Jul 2007
    Location
    Lapeer, Michigan
    Posts
    22,442
    Rep Power
    462

    Re: Bearing/insulating sleeve lubrication?

    Creaky fusers are common on Sharp, Konica Minolta, Kyocera.

    Sharp put out a bulletin to use HP-500 on the inside and outside of the heat roller bearing contact surfaces, and for the most part the fusers would nearly make the PM cycle before they started creaking again. I'll tell you right now that it's expensive.

    The other lubricant that I use is the fuser film lubricant for HP heat sleeves: Uniflor 8172
    UniFlor 8172 Uniflor Fixing Film Grease, Genuine (S4800)

    The other time I use high temp grease is anytime a metal bearing contacts a metal roller or shaft. The continual expansion and contraction from heating and cooling the fuser will seize the bearing to the shaft. A small dab of high temp grease will allow that bearing to slide right off later on when you want to rebuild.

    One last comment: Chemplex is not a good choice. Back 30 years ago when that was the only choice ... yes it kept one-way bearings from seizing, yes it loosened up seized fuser bearings, ... but it smoked and stank for weeks afterwards. You could walk into the room with the copier and the smell would waft over you, and you'd think: "Yep, Chemplex in the fuser. MMMMM."
    =^..^=
    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.
    5) You are the person onsite. Only you can make observations.

    blackcat: Master Of The Obvious =^..^=

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Get the Android App
click or scan for the Copytechnet Mobile App

-= -= -= -= -=


IDrive Remote Backup

Lunarpages Internet Solutions

Advertise on Copytechnet

Your Link Here