· Get a Cloudy Nights T-Shirt · Submit a Review / Article    Click here if you are having trouble logging into the forums Cloudy Nights - Official Forums of the 2009 International Year of Astronomy Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu.... uh, User   You are not logged in. [Login] Forum Archives · Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar Equipment Discussions >> Mounts Previous   Index   Next   Threaded   Pages: 1 Strgazr27 Vendor - Deep Space Mods and Composites Reged: 10/04/04 Posts: 6984 Loc: StonyHill Observatory Replacement bearings for EQ6       #2280315 - 03/25/08 01:55 AM Edit   Reply   Quote Quick Reply   I've had a few PM's on what bearings are needed and where did I purchase them. The following is list of the bearings that I purchased. I did not replace all the bearings on the DEC axis as it's really not needed due to tracking in the DEC axis is really not an issue. It's the RA we're worried about along with the Worm block bearings. The worm block bearings were purchased from www.VXB.COM Kit7513 608-2TS Ceramic Skate Bearing 8x22x7 Teflon Sealed 4 $9.95 $39.80 These are perhaps a bit of overkill but figure they were worth it. I have used ceramic bearings in some of the HP 1/5 scale RC cars I own and have been impressed with the smoothness and durability. The rest of the bearings were purchased from www.ebatmus.com ------------------------------------------------------------------------------ Item # Description Quantity Price Total ------------------------------------------------------------------------------ 6008 2RS BALL BEARING 40X68X15MM 2 SEALS 4 $18.91 RFQ 30206 J2/Q TAPERED ROLLER BRGS 1 $14.33 RFQ 32208 J2/Q TAPERED ROLLER BRGS 1 $22.94 RFQ ------------------------------------------------------------------------------ Hope this helps those that were interested. CS's -------------------- Bobby StonyHill Observatory Skywatcher EQ6 Pro (On it's way) AT 130 F/6 Prototype Royce 10" f/4 Astrograph (Under Construction) Self Modded 40D 70-200 F2.8 L IS SSAG YAHOO TMB 130SS Group Astronomy Technologies Yahoo Group Post Extras:       OMAR sage Reged: 05/09/07 Posts: 311 Loc: Sunrise,Florida Re: Replacement bearings for EQ6 [Re: Strgazr27]       #2282297 - 03/25/08 08:55 PM Edit   Reply   Quote Quick Reply   Hi Strgazr27 Are those parts are for the Atlas as well cause I have one and I have not decided whether to replace the worm gears from RA since it has some play.How difficult is to replace them? Any info will be kindly appreciated. Best regards from the caribbean,Omar -------------------- Omar Celestron SC 9.25 Antares 152mm F/6.5 Intes Micro MN66 Atlas EQ/Dual Drives Philips SPC 900 Webcam My dream Scope:TEC 140 Post Extras:       Strgazr27 Vendor - Deep Space Mods and Composites Reged: 10/04/04 Posts: 6984 Loc: StonyHill Observatory Re: Replacement bearings for EQ6 [Re: OMAR]       #2282311 - 03/25/08 09:01 PM Edit   Reply   Quote Quick Reply   Omar, The Atlas is the same mount as the EQ6 so the bearings should work fine. CS's -------------------- Bobby StonyHill Observatory Skywatcher EQ6 Pro (On it's way) AT 130 F/6 Prototype Royce 10" f/4 Astrograph (Under Construction) Self Modded 40D 70-200 F2.8 L IS SSAG YAHOO TMB 130SS Group Astronomy Technologies Yahoo Group Post Extras:       David Culp Pooh-Bah Reged: 04/10/07 Posts: 1177 Loc: Carrollton, TX Re: Replacement bearings for EQ6 [Re: Strgazr27]       #2283581 - 03/26/08 01:53 PM Edit   Reply   Quote Quick Reply   I have now bookmarked this post so I can order new bearings for my EQ6! Question - How hard is tearing down an EQ6 and replacing the bearings compared to something like an LXD-75. Ive been trying to find good instructions for tearing the mount down and doing a regrease and bearing replacement but Ive not come across anything that meets my needs. I just did my LXD-75 and except for a few problem areas it went pretty easy and smooth. -------------------- Atoka, Ok Post Extras:       Telescopeman54 Vendor - Trapezium Telescopes & Services, LLC. Reged: 08/17/07 Posts: 1541 Loc: New Hampshire Re: Replacement bearings for EQ6 [Re: David Culp]       #2283923 - 03/26/08 04:13 PM Edit   Reply   Quote Quick Reply   The Atlas is a much more complicated item. The LXD55 is simple in comparision. However, if you take lots of pictures as you disassemble it, you should do well. sbf -------------------- Stephen Forbes - President Trapezium Telescopes & Services, LLC 61 Valhalla Farm Road Hillsboro, NH 03244 Web: http://TrapeziumTelescopes.com Email: Stephen.Forbes@TrapeziumTelescopes.com Phone: 1.603.325.0619 6" f/15 Jaegers refractor on GOTO GEM 5.1" f/8 Burgess on CG-5 w/ iOptron GOTONOVA 102mm f/7 refractor on iOptron Mini Tower 1975 Celestron Orange Tube C8 on Equatorial Mini Tower 1978 RV-6 on iOptron Mini Tower Post Extras:       TheSheriff sage Reged: 07/15/07 Posts: 237 Loc: Oregon Re: Replacement bearings for EQ6 [Re: Telescopeman54]       #2285272 - 03/27/08 05:05 AM Edit   Reply   Quote Quick Reply   I have also bookmarked this thread. Thanks for the info SG. I look forward to updates on your site. I have yet to assemble all my parts for AP, but being a perfectionist (within my limits) and tinkerer, I see myself giving the Atlas an overhaul, needed or not. Have you found a better site than Beevo's for these mods? -------------------- Brad C8SE XLT, TMB 80SS, Orion ST-80 Atlas EQ-G/EQMOD 40D (Self-Mod), WO 0.8 Flat II, SSAG Post Extras:       David Culp Pooh-Bah Reged: 04/10/07 Posts: 1177 Loc: Carrollton, TX Re: Replacement bearings for EQ6 [Re: TheSheriff]       #2285440 - 03/27/08 08:47 AM Edit   Reply   Quote Quick Reply   I know I will probably do the same thing also! Im not all that handy but as long as it is pretty straight forward and doesnt need any strange, rare or exotic tools I should be allright. -------------------- Atoka, Ok Post Extras:       Strgazr27 Vendor - Deep Space Mods and Composites Reged: 10/04/04 Posts: 6984 Loc: StonyHill Observatory Re: Replacement bearings for EQ6 [Re: David Culp]       #2285632 - 03/27/08 10:37 AM Edit   Reply   Quote Quick Reply   I'm hoping to get the mount into work hopefully this weekend. I will be doing a comprehensive step by step with pictures as I go documenting a complete teardown and rebuild. It may take me a few days after that to put it together but it will be done in a week or 2. CS's -------------------- Bobby StonyHill Observatory Skywatcher EQ6 Pro (On it's way) AT 130 F/6 Prototype Royce 10" f/4 Astrograph (Under Construction) Self Modded 40D 70-200 F2.8 L IS SSAG YAHOO TMB 130SS Group Astronomy Technologies Yahoo Group Post Extras:       OMAR sage Reged: 05/09/07 Posts: 311 Loc: Sunrise,Florida Re: Replacement bearings for EQ6 [Re: Strgazr27]       #2285913 - 03/27/08 12:52 PM Edit   Reply   Quote Quick Reply   Thanks Strgazr for the info.Ill also be checking your photos of the repair that will be very helpful for my lack of mechanic skills. CS's -------------------- Omar Celestron SC 9.25 Antares 152mm F/6.5 Intes Micro MN66 Atlas EQ/Dual Drives Philips SPC 900 Webcam My dream Scope:TEC 140 Post Extras:       SPACEMAN sage Reged: 01/30/05 Posts: 218 Loc: grömme,Belgium Re: Replacement bearings for EQ6 [Re: OMAR]       #2286380 - 03/27/08 04:22 PM Edit   Reply   Quote Quick Reply   I agree that the EQ6 is very complicated. I also updated my mount with SKF bearings. Very nice stuff after all. But be carefull with all small parts. -------------------- 14" SPX, F4.6, F1/10 Orion Optics 1/10 Lamba EQ6 on Stativ 40, Escap P530.004 motors 12X80 f3.7 finder by Herman Ten Haaf 6" Sky-wacther Refr. On GP with MT-1 motors Dew Buster, Kendrick dew heaters Controller for the 2 mounts: Dynostar x3 3.2Amp Kendrick Astro tent Post Extras:       skyler Carpal Tunnel Reged: 08/16/06 Posts: 1672 Loc: TGPNW Re: Replacement bearings for EQ6 [Re: SPACEMAN]       #2286412 - 03/27/08 04:40 PM Edit   Reply   Quote Quick Reply   What did the updated bearing do for you? Was there a marked improvement in PE for imaging work? S Post Extras:       SPACEMAN sage Reged: 01/30/05 Posts: 218 Loc: grömme,Belgium Re: Replacement bearings for EQ6 [Re: skyler]       #2287520 - 03/28/08 06:35 AM Edit   Reply   Quote Quick Reply   I dident do it for Imaging work. But the improvement for visual use was remarkable.Very smooth. All ways better then the chinees bearings -------------------- 14" SPX, F4.6, F1/10 Orion Optics 1/10 Lamba EQ6 on Stativ 40, Escap P530.004 motors 12X80 f3.7 finder by Herman Ten Haaf 6" Sky-wacther Refr. On GP with MT-1 motors Dew Buster, Kendrick dew heaters Controller for the 2 mounts: Dynostar x3 3.2Amp Kendrick Astro tent Post Extras:       BCB Undercover Saboteur Reged: 11/24/03 Posts: 5197 Loc: Look over your shoulder Re: Replacement bearings for EQ6 [Re: SPACEMAN]       #2288817 - 03/28/08 05:09 PM Edit   Reply   Quote Quick Reply   Hey Star, if there's plastic spacer washers used in the setup of the worm gears, I have some skived teflon sheet in a few thicknesses I can spare. Between the teflon spacers instead of plastic, and new tighter tolerance bearings, that mount ought to work sweet. -------------------- Mark Lost in thought. Please send search party!!! Astro-Tech 111EDT Orion 8" F5 Newt w/Moonlight CR-2 focuser SVP mount w/Meade 497 Autostar GOTO mod Treeline Observatory Post Extras:       Bennett Burbank newbie Reged: 09/30/05 Posts: 3 Re: Replacement bearings for EQ6 [Re: Strgazr27]       #3376804 - 10/07/09 03:20 PM Edit   Reply   Quote Quick Reply   Is there any benefit to going with the considerably more expensive bearings from SKF (non-Chinese)? Thanks! - Bennett Burbank Post Extras:       SKYGZR journeyman Reged: 08/14/09 Posts: 8 Re: Replacement bearings for EQ6 [Re: Bennett Burbank]       #3377112 - 10/07/09 06:34 PM Edit   Reply   Quote Quick Reply   Good info to know. I take it both axis's have the same bearings? 'cause if i'm gonna do it someday, might as well do both. -------------------- "My GOD, It's Full of Stars!" Post Extras:       Nils_Lars Post Laureate Reged: 01/04/08 Posts: 3453 Loc: Santa Cruz Mountains , CA Re: Replacement bearings for EQ6 [Re: SKYGZR]       #3377588 - 10/07/09 11:50 PM Edit   Reply   Quote Quick Reply   I just rebuilt mine with the kit from astro-rubylith and I can say it makes a difference for sure. As far as PEC I started with 18 peak to peak out of the box and by doing the rebuild I got it down to 8 peak to peak. Ill bet by doing some more fine tuning I can even get more then that , I would say at a bare minimum to replace the worm gear bearings with the ceramic ones and do a relube and fine tune gear mesh. Oh and it does use the same bearings for both axis , 6 of them plus the 2 race plus 4 for the worm gears. -------------------- Erik Orion Atlas Self Hypertuned (EQMOD) Orion ED 80 Williams Optics VII reducer Celestron 8" SCT Orion Starshoot Autoguider PHD guide Canon 400D Hap Griffin Mod w/Baader filter Astronomik clip-in LP filter and 12nm Ha Stilleto CVF and Bahtinov mask Tamron 75-300mm&28-80mm lenses NexImage webcam http://www.flickr.com/photos/31986095@N05/ Edited by Nils_Lars (10/07/09 11:54 PM) Post Extras:       Bennett Burbank newbie Reged: 09/30/05 Posts: 3 Re: Replacement bearings for EQ6 [Re: Nils_Lars]       #3377976 - 10/08/09 09:23 AM Edit   Reply   Quote Quick Reply   Do the large bearings that you got from Astro-Rubylith (which are Chinese for sure at that crazy-low price) make a difference in the looseness / smoothness of the axes? I have a very sticky DEC axis which makes balancing impossible. Post Extras:       Joseph Gillman Carpal Tunnel Reged: 12/06/05 Posts: 2784 Loc: Aston, PA Re: Replacement bearings for EQ6 [Re: Bennett Burbank]       #3378071 - 10/08/09 10:28 AM Edit   Reply   Quote Quick Reply   My guess is, from watching the hypertune dvd multiple times and being in the middle of my own rebuild, that the only thing letting the gear move when you lock the clamp are in fact those bearings, and also the bearing-spacer interface. The bearings might be fine or just need a regrease, and perhaps the spacers (nylon or other cheap plastic) are damaged. I will be looking to replace my spacers with the teflon ones. -------------------- Post Extras:       Nils_Lars Post Laureate Reged: 01/04/08 Posts: 3453 Loc: Santa Cruz Mountains , CA Re: Replacement bearings for EQ6 [Re: Joseph Gillman]       #3379601 - 10/09/09 01:41 AM Edit   Reply   Quote Quick Reply   Im sure they are chinese and I might do another rebuild later on to put the more expensive ones it , it was really pretty easy and it definitely made balance easier and the whole thing runs smoother. -------------------- Erik Orion Atlas Self Hypertuned (EQMOD) Orion ED 80 Williams Optics VII reducer Celestron 8" SCT Orion Starshoot Autoguider PHD guide Canon 400D Hap Griffin Mod w/Baader filter Astronomik clip-in LP filter and 12nm Ha Stilleto CVF and Bahtinov mask Tamron 75-300mm&28-80mm lenses NexImage webcam http://www.flickr.com/photos/31986095@N05/ Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 4 registered and 10 anonymous users are browsing this forum. 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