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41. Re: [TowerTalk] Thrust bearings (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Fri, 01 Mar 2013 12:48:40 -0800; Do your car wheel bearings wear out because there is weight on them Most car bearings don't have aluminum races <grin>.. But you're exactly right. Unless the metal is going to cold flow (it wont), th; /archives//html/Towertalk/2013-03/msg00005.html (8,175 bytes)
42. Re: [TowerTalk] Thrust bearings (score: 1): Author: K8RI <K8RI-on-TowerTalk@tm.net>; Date: Fri, 01 Mar 2013 16:48:51 -0500; The scrap aluminium tube I used has a wall thickness of about 0.75 inches, Now THAT is "thick" and certainly substantial<:-)) 73 Roger (K8RI)any10cats the object being try and find bearings/materials; /archives//html/Towertalk/2013-03/msg00006.html (11,826 bytes)
43. Re: [TowerTalk] Thrust bearings (score: 1): Author: Ro Grrr <rogrrr@hotmail.com>; Date: Sat, 2 Mar 2013 12:40:00 -0500; Jim Lux wrote about: Re:Thrust bearings There's no wear without motion. I write: Jim, while I agree with you on this item, I had a tower up years ago that had a TH3 on top of a KR2000 rotor. I was qr; /archives//html/Towertalk/2013-03/msg00007.html (7,964 bytes)
44. Re: [TowerTalk] Thrust bearings (score: 1): Author: Grant Saviers <grants2@pacbell.net>; Date: Sat, 02 Mar 2013 19:14:00 -0800; One of the worst wear environments for a ball bearing is for it to have small oscillatory motions. As in a rotator infrequently used and subject to wind oscillations. This breaks down the oil film an; /archives//html/Towertalk/2013-03/msg00008.html (9,706 bytes)
45. Re: [TowerTalk] Thrust bearings (score: 1): Author: K8RI <K8RI-on-TowerTalk@tm.net>; Date: Sun, 03 Mar 2013 01:51:18 -0500; On 3/2/2013 10:14 PM, Grant Saviers wrote: One of the worst wear environments for a ball bearing is for it to have small oscillatory motions. As in a rotator infrequently used and subject to wind osc; /archives//html/Towertalk/2013-03/msg00009.html (10,967 bytes)
46. [TowerTalk] Thrust Bearings (score: 1): Author: "Wilson" <infomet@embarqmail.com>; Date: Sun, 1 Nov 2015 11:39:16 -0500; Can we get this terminology right? Thrust bearings take AXIAL loads off members, like the prop shaft on a ship. They dont take lateral loads as a main function. Yes, there are some ball and roller be; /archives//html/Towertalk/2015-11/msg00006.html (7,213 bytes)
47. Re: [TowerTalk] Thrust Bearings (score: 1): Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>; Date: Mon, 2 Nov 2015 01:25:11 -0500; I beg to differ. You can purchase "thrust bearings" that are designed for lateral loads, axial loads and both. The TB 3 and 4 are examples of the both. Look at the way the races are designed. Wiki do; /archives//html/Towertalk/2015-11/msg00032.html (9,836 bytes)
48. [TowerTalk] thrust bearings (score: 1): Author: <knowkode@verizon.net>; Date: Sat, 6 Oct 2018 15:57:02 +0000 (UTC); Greetings All, I have used Rohn TB3 thrust bearings in the past without issue but I have seen my fair share of worn out bearings due mainly to an antenna being parked in one direction for a long tim; /archives//html/Towertalk/2018-10/msg00017.html (7,060 bytes)
49. Re: [TowerTalk] thrust bearings (score: 1): Author: "Jim" <jimw7ry@gmail.com>; Date: Sat, 6 Oct 2018 13:21:13 -0500; This is what I use: https://www.northerntool.com/images/product/2000x2000/189/189775_2000x2000.jpg https://www.norelem.com/xs_db/BILD_DB/2/www/750/24210.jpg It's called a pillow block. 2" for your ma; /archives//html/Towertalk/2018-10/msg00018.html (9,277 bytes)
50. Re: [TowerTalk] thrust bearings (score: 1): Author: "Jim" <jimw7ry@gmail.com>; Date: Sat, 6 Oct 2018 13:36:58 -0500; Here's another one: https://www.grainger.com/search?searchQuery=UCF210+32 Amazon also has them... If you like Amazon. I have had one of these up on 3 different towers at 3 locations. Been up for 30 y; /archives//html/Towertalk/2018-10/msg00019.html (8,980 bytes)
51. Re: [TowerTalk] thrust bearings (score: 1): Author: k7lxc--- via TowerTalk <towertalk@contesting.com>; Date: Sat, 6 Oct 2018 18:40:57 +0000 (UTC); Are you sure you need one? Most folks use a TB to minimize the vertical weight on the rotator when they actually need some preload to seat the bearings. With that in mind, you don't even need a; /archives//html/Towertalk/2018-10/msg00020.html (8,514 bytes)
52. Re: [TowerTalk] thrust bearings (score: 1): Author: "Jim" <jimw7ry@gmail.com>; Date: Sat, 6 Oct 2018 13:42:50 -0500; They are more properly known as a flange bearing. A pillow block has a slightly different usage. https://duckduckgo.com/?q=flange+bearing&atb=v134-3__&iar=images&iax=images&ia=images 73 Jim W7RY Gree; /archives//html/Towertalk/2018-10/msg00021.html (8,756 bytes)
53. Re: [TowerTalk] thrust bearings (score: 1): Author: <knowkode@verizon.net>; Date: Sat, 6 Oct 2018 21:08:43 +0000 (UTC); Jim, I had reservations about using a conventional flange bearing but your roof jack idea jostled a memory. I haven't seen that trick in 15 years. Thanks for the ideas. Jim, W5QM ____________________; /archives//html/Towertalk/2018-10/msg00022.html (7,651 bytes)
54. Re: [TowerTalk] thrust bearings (score: 1): Author: Grant Saviers <grants2@pacbell.net>; Date: Sat, 6 Oct 2018 14:17:26 -0700; What IS required is a radial bearing for flat plate top towers. A thrust bearing is only needed if the dead load exceeds the rotator capacity, which takes quite an antenna stack. The bearings in rot; /archives//html/Towertalk/2018-10/msg00023.html (11,289 bytes)
55. Re: [TowerTalk] thrust bearings (score: 1): Author: Chick Allen via TowerTalk <towertalk@contesting.com>; Date: Sat, 6 Oct 2018 17:59:45 -0400; Ive seen guys take a 2 rubber ( plumbing) vent flange and slit it to go over the mast and slide it down over the TB3 bearing for additional weather protection. Either bearing, TB3 or the DXE, is a go; /archives//html/Towertalk/2018-10/msg00024.html (9,080 bytes)
56. Re: [TowerTalk] thrust bearings (score: 1): Author: "Gene Smar" <ersmar@verizon.net>; Date: Sun, 7 Oct 2018 02:10:24 -0400; Gents: I used an industrial flange type bearing on my top tower shelf: (2-1/16 " Fafnir SCJ cartridge in GYA-RRB bearing assembly). You can see a couple of pix at https://tinyurl.com/y7uxkcj3 and htt; /archives//html/Towertalk/2018-10/msg00030.html (10,325 bytes)
57. [TowerTalk] thrust bearings (score: 1): Author: Everett Jackson <wz8p@wz8p.com>; Date: Sun, 7 Oct 2018 17:52:37 -0400; I am having the same problem. Looking for a better bearing for a 40 meter 3 el beam @ 120 Ft. 74 Everett -WZ8P -- Everett Jackson 5070 Dresden Court Zanesville, Ohio 43701 1-740-452-7971 ____________; /archives//html/Towertalk/2018-10/msg00034.html (9,142 bytes)
58. Re: [TowerTalk] thrust bearings (score: 1): Author: Bryan Swadener via TowerTalk <towertalk@contesting.com>; Date: Mon, 8 Oct 2018 08:07:22 +0000 (UTC); That'd work. On my US Tower TX-472 in order to make an "umbrella" above the thrust bearing, I added a stepped plastic adapter, intended for use in wood shop dust collector systems. I bought it from t; /archives//html/Towertalk/2018-10/msg00044.html (9,329 bytes)

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