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G4ztfa (G4ztfa) Member Username: G4ztfa
Post Number: 1 Registered: 5-2006
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Posted on Sunday, May 28, 2006 - 12:38 pm: |
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Hi, Can I presume that the EN24T 20mm x 370mm 4425-002 will fit the Pillow Block Pressed Steel Bearing Unit 20mm 4253-003? I have recently purchased both these parts but the steel bar is too big by about 4-5mm for the hole in the pillow block. Have I been sent the wrong parts? or have I ordered the wrong parts? Thanks Gary |
Admin (Admin) Board Administrator Username: Admin
Post Number: 195 Registered: 10-2004
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Posted on Sunday, May 28, 2006 - 3:23 pm: |
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Gary, Yes they should although sometimes a slight rub down with a fine wet & dry paper (dry) and emery cloth may help. However, from what you describe you have the wrong parts there. If you check the internal diameter of the bearing and the outside diameter of the EN24T and let us know, we shall correct any mistake we have made. We would Email our response but you have not left us an Email address. |
Simon S Unregistered guest
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Posted on Thursday, September 21, 2006 - 11:40 am: |
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Hi Just phoned you very helpful receptionist and she said this is the best way to contact you. My Querie: I Have an XTM XLB 1-7 Scale Nitro Buggy. The problem I have is that under the extreme forces in the differentials the bearings that hold the Pinion gear in place keep collapsing and subsequently strip some teeth off the pinion gear. Im wondering if the solution to this is to upgrade the type of bearing from a sealed ball type to a sealed roller bearing type? I'll try to provide you with as much information as I possibly can so here is the link for the PDF owners manual file that gives an exploded view of the buggy in question http://media.hobbypeople.net/manual/145617.pdf The parts are listed here http://globalservices.globalhobby.com/part/145617.asp and I think the bearing in question is part number "149563 XTM Ball Bearing 8x16x5 (688zz) - X-T/X-F/Mam" They don't seem to show the pinion 13T gear but in my manual it describes it as 85x1 part 148423 thi is the part the upgraded bearings will need to hold in place within the input side of.differential housing. I'll also upload a picture i've found of the section of the diff in question. I look forward to hearing from you. Best wishes Simon
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Admin (Admin) Board Administrator Username: Admin
Post Number: 267 Registered: 10-2004
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Posted on Sunday, September 24, 2006 - 9:31 pm: |
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Simon, Thank you for such a detailed explanation of the problem. There are different standards to which these miniature bearings are made but I would expect needle or cylindrical bearings to be able to take far more load. Please note that our knowledge of bearings whilst good is not exhaustive. The main issue to overcome is size, assuming that the 8mm shaft and the 16mm overall diameter is fixed, do you have room for wider bearings? Looking at your pic, the bearing housing looks like it can only accept the 5mm width, do you have a pic of the diff with the bearings and gears in? Not sure that we can help but will try. Regards Paul |
Praful Patel Unregistered guest
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Posted on Wednesday, September 27, 2006 - 5:16 pm: |
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Hi, Can you tell me the size and positon of the fixing threads on bearing block: 4604-020? Thanks, Praful. Softronic. |
Admin (Admin) Board Administrator Username: Admin
Post Number: 272 Registered: 10-2004
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Posted on Saturday, September 30, 2006 - 7:39 pm: |
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Hello Praful, Yes, there are no threads but clearance holes for the included M3 x 25mm screws. The bearing blocks are 19.3 x 19.3 x 10.2mm. The 2 off clearance holes are 14mm centre to centre. Trusting that answers your question. |
Pam Russell Unregistered guest
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Posted on Friday, October 27, 2006 - 4:59 am: |
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We have a featherweight robot using drill motors and their gearboxes. We have had to remove some of the original gearbox housing from the drill so that our wheels can screw directly onto the spindle but this means that the ball bearings in the gearbox have nothing to hold them in and they can fall through the holes. What is the best way to secure the bearings? I was looking at your "Deep Groove ball bearing" product, would this be an alternative? |
Admin (Admin) Board Administrator Username: Admin
Post Number: 304 Registered: 10-2004
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Posted on Sunday, October 29, 2006 - 6:30 pm: |
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Hello Pam, Regretfully you have not provided us with sufficent information to make a recommendation. We need to know the bearing outside diameter, bore diameter and its depth. We may well have a bearing to suit so if you can provide this information along with a photo as well to avoid any confusion. |
Bill_lancaster (Bill_lancaster) Member Username: Bill_lancaster
Post Number: 1 Registered: 11-2006
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Posted on Friday, November 24, 2006 - 10:11 am: |
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Can you advise the id of the bush which presumably is fitted for Pillow Block Cast Bearing Unit 17mm 4253-015 Thanks |
Admin (Admin) Board Administrator Username: Admin
Post Number: 330 Registered: 10-2004
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Posted on Friday, November 24, 2006 - 12:32 pm: |
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Bill, Not sure that I understand what you are after here. The bearing has an ID of 17mm so can take a 17mm shaft. Please advise if this does not answer your question. We would have Emailed you but you did not leave an Email contact. |
Chris (Teamtanglefoot) Member Username: Teamtanglefoot
Post Number: 17 Registered: 5-2007
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Posted on Tuesday, February 5, 2008 - 8:11 am: |
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Hi Paul, I was wondering about your needle roller bearings. I intend to use them for the Flipper hinge. I have some 16mm ones for the transmission and intend to use probably 20mm with a 20mm steel bar for the flipper hinge. Do you think they will be suitable for this? Tks Chris |
Admin (Admin) Board Administrator Username: Admin
Post Number: 699 Registered: 10-2004
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Posted on Tuesday, February 5, 2008 - 7:47 pm: |
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Hi Chris, Our needle roller bearings should not be used with mild steel otherwise the needle rollers will wear the shaft. You did not mention the type of flipper, the force from the ram or the speed, but assuming it is a 'conventional' rear hinged, the forces can be very high on the rear pivot. on M2 and M2XT, those forces have been high enough to bend 16mm EN24T but I have never bothered with bearings. The ram forces should far exceed the frictions from the wearing surfaces so I'm not sure how much you would gain by using bearings against the risk of bearing failure. Unless you calculate the force on the bearing, I cannot really say for sure. |
Chris (Teamtanglefoot) Member Username: Teamtanglefoot
Post Number: 18 Registered: 5-2007
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Posted on Tuesday, February 5, 2008 - 8:47 pm: |
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Hi Paul Thanks for that, I'll skip the bearings and use 20mm Bar Tks paul Chris |
Chris (Teamtanglefoot) Member Username: Teamtanglefoot
Post Number: 20 Registered: 5-2007
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Posted on Sunday, April 13, 2008 - 11:14 pm: |
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Hi Paul, Glad you sorted the web-site out. Hopefully minimal damage. I just wanted to be sure before I ordered but I have a couple of your bearings. 4256-003 the 17 mm bearings with grub screws. Is part number 4257-013 the correct flange housing for this bearing?. I was going to use the pillow block's I already have but ran into a problem on the new build it would work better using this. Tks Chris |
Admin (Admin) Board Administrator Username: Admin
Post Number: 760 Registered: 10-2004
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Posted on Monday, April 14, 2008 - 2:23 pm: |
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Hi Chris, we did sort it out in the end thank you. Yes, they are the correct size housings for the 17mm bearing inserts. Kind regards Paul |
hemanth nirmal (Ajay200126) Member Username: Ajay200126
Post Number: 1 Registered: 4-2008
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Posted on Friday, April 18, 2008 - 3:35 am: |
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hi i need a set of ID=8MM & 12MM ,OD&WIDTH=ANY THING WILL DO WHICH CAN WITHSTAND 100000RPM |
Admin (Admin) Board Administrator Username: Admin
Post Number: 769 Registered: 10-2004
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Posted on Friday, April 18, 2008 - 7:02 am: |
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Hi, Our 8mm bore bearings have a speed rating of 36 to 40,000 rpm. The 12mm bore are lower again. Sorry we cannot help. |
hemanth nirmal (Ajay200126) Member Username: Ajay200126
Post Number: 2 Registered: 4-2008
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Posted on Friday, April 18, 2008 - 4:04 pm: |
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u said that 8mm has 40000RPM HOW MUCH A PAIR COST INCLUDING SHIPPING TAXES TO INDIA MY CITY PIN CODE:520001 |
Admin (Admin) Board Administrator Username: Admin
Post Number: 771 Registered: 10-2004
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Posted on Friday, April 18, 2008 - 8:41 pm: |
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Hi, Sorry but we do not ship outside of the EU at the time of writing. |
Rick Turner Unregistered guest
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Posted on Tuesday, August 4, 2009 - 9:53 pm: |
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Can you please tell me what the flange thickness is for "Miniature Flange Bearing MF6801ZZ 12x21x5 - Part No: 4255-191". Your catalogue entry only gives the overall bearing depth. I need to figure out chassis mounting dimensions and cant do so without this figure... Thanks, Rick |
Admin (Admin) Board Administrator Username: Admin
Post Number: 1099 Registered: 10-2004
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Posted on Thursday, August 6, 2009 - 4:51 pm: |
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Rick, The flange is 1mm thick. |
Jerry Irwin Unregistered guest
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Posted on Wednesday, August 5, 2009 - 1:36 pm: |
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Ref 5 mm and 3 mm inside dia flanged bearing, Can you give me the flange thickness and does width dimension include flange thickness? Thanks Jerry Irwin |
Admin (Admin) Board Administrator Username: Admin
Post Number: 1100 Registered: 10-2004
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Posted on Thursday, August 6, 2009 - 4:56 pm: |
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The flanges are 0.55 and 0.75mm respectively as best as I can measure and yes the bearing width is overall. |
bill winter Unregistered guest
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Posted on Thursday, October 29, 2009 - 9:17 am: |
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re 12mm bearing insert, can you please advise the OA diameter and thickness of the section that fits into your pressed steel pillow block. I may have suitable bearings but need to confirm that they will fit your holders. Many thanks |
Admin (Admin) Board Administrator Username: Admin
Post Number: 1144 Registered: 10-2004
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Posted on Wednesday, November 4, 2009 - 8:54 am: |
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Bill, sorry but I do not have the dimensions to hand but they follow an industry standard. So if you have inserts of the same bore then they should fit. Please note that bearing inserts have a spherical outer profile so that they self align in the housing. |
jc Unregistered guest
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Posted on Saturday, March 6, 2010 - 12:07 am: |
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Hi, possibly a silly question , but I am new to this How do you fix the needle roller bearing in place, specifically Needle Roller Bearing Drawn Cup 4 x 8 - Part No: 4250-001 i am realy after something like this 20mm Pressed Steel Pillow Housing - Part No: 4257-004 but that will take the needle roller 4250-001. thansk in advance. |
Admin (Admin) Board Administrator Username: Admin
Post Number: 1224 Registered: 10-2004
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Posted on Monday, March 15, 2010 - 7:10 pm: |
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Needle roller bearings are intended to be inserted into your own bearing housing that typically forms part of your fabrications. For example, side plates in a custom made gearbox. We do stock other bearings that are design to fit off the shelf press steel housings but as you will have noticed, they are not available as small as you need. We also stock small flanged bearings that can be pushed into an accurately drilled hole. We also stock a couple of model bearing blocks that have either a 5mm or 6mm bore bearing in them. |
Nickolas Hunt Unregistered guest
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Posted on Tuesday, March 16, 2010 - 10:12 am: |
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Your part No4255-166 do you have a drawing or the following information: Thickness of inner ring width of inner and outside rings |
Admin (Admin) Board Administrator Username: Admin
Post Number: 1227 Registered: 10-2004
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Posted on Tuesday, March 16, 2010 - 8:10 pm: |
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Nickolas, Dimensions of these bearings are included within the item listing on our website and repeated below: Bore 5mm Outer Diameter 10mm Flange Outer Diameter 11.6mm Width 4mm Load rating 431N The only dimension we can add is that the flange is 0.8mm thick. |