开云体育

possible worm gear

Jacques Savard All Messages By This Member #119251 There is a bizard gear in the hubs of a bycile that is lounging to the screw of a Worm Gear is easy to make the 'Worm Gear' which would go with this screw I could take a picture of the screw in question if it can help THANKS Jack 47 71
davesmith1800 All Messages By This Member #119252 Yes a photo helps Dave?
Chris Albertson #119253 开云体育 The thing about bicycle parts is that they use a lot of non-common threads and gear profiles and screws with custom head shapes, not to mention exotic metals and tempering. ? for example, you can look at a standard bottom bracket and find?34.92mm diameter threads. ?Not a hardware store size. ?You might measure and?think “35mm” and be wrong. ?? I don't know the specs on the gear you need but, there is a good chance is it a custom-size or profile. toggle quoted message Show quoted text On Mar 25, 2024, at 1:34?PM, davesmith1800 <davesmith1@...> wrote: Yes a photo helps Dave?
mike allen All Messages By This Member #119254 开云体育 Back when I was still into bikes & Campagnolo ruled everyone had to use different threads in their bottom brackets & pedals . I had/have a Set of TA cranks & chain wheels & the threads were different between? TA , to Stronglite , &? Campy crank sets . I was so pissed when my new to me Campy blacktop pedals wouldn't fit the cranks . It's actually probably good that I didn't have a mini lathe or any lathe & mill for that mater back then. I'm sure I would have ruined a lot of expensive parts by fixing them . animal On 3/25/24 2:05 PM, Chris Albertson wrote: toggle quoted message Show quoted text The thing about bicycle parts is that they use a lot of non-common threads and gear profiles and screws with custom head shapes, not to mention exotic metals and tempering. ? for example, you can look at a standard bottom bracket and find?34.92mm diameter threads. ?Not a hardware store size. ?You might measure and?think “35mm” and be wrong. ?? I don't know the specs on the gear you need but, there is a good chance is it a custom-size or profile. On Mar 25, 2024, at 1:34?PM, davesmith1800 <davesmith1@...> wrote: Yes a photo helps Dave?
mike allen All Messages By This Member #119255 开云体育 Another thought is maybe by making a new worm & gear ya could end up with a more user friendly thread pitch that could make the math easier ? animal On 3/25/24 2:05 PM, Chris Albertson wrote: toggle quoted message Show quoted text The thing about bicycle parts is that they use a lot of non-common threads and gear profiles and screws with custom head shapes, not to mention exotic metals and tempering. ? for example, you can look at a standard bottom bracket and find?34.92mm diameter threads. ?Not a hardware store size. ?You might measure and?think “35mm” and be wrong. ?? I don't know the specs on the gear you need but, there is a good chance is it a custom-size or profile. On Mar 25, 2024, at 1:34?PM, davesmith1800 <davesmith1@...> wrote: Yes a photo helps Dave?
Chris Albertson #119256 开云体育 At least today the pedels all use the same thread. ? But so much else is totally custom. ?Like the tapered-head titanium cap screws. ? One newish innovation is that all the screws on my bike are marked with a “Min and Max torque” value. Something like “5 - 7 newton meters” by every screw. ? ?I think this happened when they went with carbon fiber. I have NEVER heard of anyone usimng machine tools to work on a bicycle. ? It is just not done. toggle quoted message Show quoted text On Mar 25, 2024, at 3:04?PM, mike allen <animal@...> wrote: Back when I was still into bikes & Campagnolo ruled everyone had to use different threads in their bottom brackets & pedals . I had/have a Set of TA cranks & chain wheels & the threads were different between? TA , to Stronglite , &? Campy crank sets . I was so pissed when my new to me Campy blacktop pedals wouldn't fit the cranks . It's actually probably good that I didn't have a mini lathe or any lathe & mill for that mater back then. I'm sure I would have ruined a lot of expensive parts by fixing them . animal On 3/25/24 2:05 PM, Chris Albertson wrote: The thing about bicycle parts is that they use a lot of non-common threads and gear profiles and screws with custom head shapes, not to mention exotic metals and tempering. ? for example, you can look at a standard bottom bracket and find?34.92mm diameter threads. ?Not a hardware store size. ?You might measure and?think “35mm” and be wrong. ?? I don't know the specs on the gear you need but, there is a good chance is it a custom-size or profile. On Mar 25, 2024, at 1:34?PM, davesmith1800 <davesmith1@...> wrote: Yes a photo helps Dave?
Tony Smith All Messages By This Member #119258 开云体育 Two sizes for pedal threads.? One for kids bikes, one for adults.? Imperial threads, of course, and the difference between them is bugger all (1/16”) so I’m not entirely sure what the point was. ? And I think the smaller size is only for small kids bikes with those one piece cranks. ? But that’s bicycles for ya, make everything different because why not.? Changing handlebar tubes from ~25mm to ~30mm still annoys me, ??Why? ? Tony ? ? toggle quoted message Show quoted text From: [email protected] <[email protected]> On Behalf Of Chris Albertson Sent: Tuesday, 26 March 2024 11:18 AM To: [email protected] Subject: Re: [7x12MiniLathe] possible worm gear ? At least today the pedels all use the same thread. ? But so much else is totally custom. ?Like the tapered-head titanium cap screws. ? One newish innovation is that all the screws on my bike are marked with a “Min and Max torque” value. Something like “5 - 7 newton meters” by every screw. ? ?I think this happened when they went with carbon fiber. ? I have NEVER heard of anyone usimng machine tools to work on a bicycle. ? It is just not done. ? ? On Mar 25, 2024, at 3:04?PM, mike allen <animal@...> wrote: ? Back when I was still into bikes & Campagnolo ruled everyone had to use different threads in their bottom brackets & pedals . I had/have a Set of TA cranks & chain wheels & the threads were different between? TA , to Stronglite , &? Campy crank sets . I was so pissed when my new to me Campy blacktop pedals wouldn't fit the cranks . It's actually probably good that I didn't have a mini lathe or any lathe & mill for that mater back then. I'm sure I would have ruined a lot of expensive parts by fixing them . animal On 3/25/24 2:05 PM, Chris Albertson wrote: The thing about bicycle parts is that they use a lot of non-common threads and gear profiles and screws with custom head shapes, not to mention exotic metals and tempering. ? for example, you can look at a standard bottom bracket and find?34.92mm diameter threads. ?Not a hardware store size. ?You might measure and?think “35mm” and be wrong. ?? ? I don't know the specs on the gear you need but, there is a good chance is it a custom-size or profile. ? ? ? ? ? On Mar 25, 2024, at 1:34?PM, davesmith1800 <davesmith1@...> wrote: ? Yes a photo helps Dave? ? ?
paul mcclintic All Messages By This Member #119259 I have a set of 1975 Hi-E hubs that two holes broke out on the drive side flange of the rear hub. I was able to make a new part that works like new using 7075 aluminum. I'm sure it will last the rest of my riding years toggle quoted message Show quoted text On Mon, Mar 25, 2024 at 05:04 PM, mike allen wrote: It's actually probably good that I didn't have a mini lathe or any lathe & mill for that mater back then. I'm sure I would have ruined a lot of expensive parts by fixing them .
Jacques Savard All Messages By This Member #119347 HERE IS? THE PICTURE? HOPE? THAT? HELP maybe? it impossible? to use? it? for? 90? angle? system?? jack 47 71 20240407_101810_1_.jpg

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