Boston Gears

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Bernd

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I've looked in all the right places, including Boston Gear web site. You need to sign up to get in. I have a feeling it's to keep hobbyist out since they ask a lot of questions pertaining to a workplace.

Were can one purchase Boston Gears?

I've got the part number so finding them would be easy if I could find an outlet somewhere in the USA.

I need a 22 tooth, diametrical pitch of 1.1", and two 90 tooth, diametrical pitch of 4.5". The 22 tooth Boston part number is NA 22-1/2 and the 90 is NA 90 if that helps. That's all the info on the print.

I know somebody's going to ask what they are for and can I substitute another makers gears. I could also make my own. That thought has occurred to me also.

Probably could use another manufacturers gear, but finding a 90 tooth gear without knowing the pitch is a bit hard.

TIA,
Bernd
 
There is a dealer locator on the main page of bostongear.com. Just enter your zip code. -Mike
 
I recently had to buy some worm gears for work. I'm not sure who our supplier is, but I know we don't get them directly through Boston, but instead use a place like Kaman (local) who stock or can get everything. Let me check at work tomorrow.

BTW, signing up is no big deal. They just want your contact info so they can send you junkmail. As I seem to be the go-to guy for ordering parts at work, I get an enormous quantity of engineering porn - otherwise known as catalogs.
 
I went to these guys when I needed a couple spur gears for my lathe's gearbox. Several retail locations across Canada and the USA. They have both Boston and Martin gears, as well as bushings and bearings. You can even look up some numbers on their website. It's best if you go prepared with part numbers though.

https://www.motionindustries.com
 
You're right

Industrial websites really don't want to deal with hobbyists. I can't blame them after seeing the damage I can do. ;D

Seriously, they really don't need our business. They are geared (no pun intended) to users who buy in quantity or users who need very little handholding. That's generally not us.

I'm from both worlds as I machine for a hobby but design equipment as a profession. There are suppliers (national and local) that are good at the small quantity stuff (and when you find one you should support them as much as possible).

Some of these guys have actually made it easy for the general public to purchase from. Some because they want our business and some as a side effect of what they do well. Some that come to mind are McMaster-Carr, Enco, MSC, and Online Metals. (the usual customer relation only disclaimer applies)

In my experience from the industrial side Boston Gear is one of the more difficult vendors to deal with, hard to get info from and they don't seem to care about small orders. I prefer Stock Drive Products http://www.sdp-si.com/ and Small Parts http://www.smallparts.com/ but I haven't dealt with them as a hobbyist. As mentioned above McMaster-Carr http://www.mcmaster.com/ should also have what you want.

I don't know if the Canadian thing will be an issue but you can see.

Good luck


Ken
Colorado, USA


 
Marinesteam said:
...
I don't know if the Canadian thing will be an issue but you can see.
...

Great advice Ken. Mcmaster is great, a little pricey on some things (not so on others). Fortunately they are about 15 min from me.

I know Bernd is up north from us... he isn't that far! He is in the states.

Eric
 
Bernd said:
I need a 22 tooth, diametrical pitch of 1.1", and two 90 tooth, diametrical pitch of 4.5". The 22 tooth Boston part number is NA 22-1/2 and the 90 is NA 90 if that helps. That's all the info on the print.

Hi Bernd,

It's a minor point, but it might help in your search for your gears...

You need 20 diametral pitch (DP) gears. 1.1" would be the pitch diameter of the 22 tooth gear.

Inch-based gears are classified by DP, which is defined as the number of teeth per inch of pitch diameter. Therefore, 22 teeth divided by 1.1" = 20 diametral pitch (DP). Any two gears of the same DP will mesh properly with each other (provided they have the same pressure angle (generally 14.5 or 20 degrees).

Paula
 
Bernd, it was Kaman Industrial I used. Sort of like Mcmaster or MSC, but local (Lyell Ave?). The gears were PIC, and I found their on-line catalog to be good. You can also try Graingers on Mt. Read Blvd. Both places are "go get it" suppliers for us. Being small, we usually only order very small quantities. Both places have a good stock, and welcome walk-ins.
 
KEN is right i have called stock drive products and they where very helpful there are on long island ny. The only problem I find is two thinks a lot of part numbers on plans for gears either from stock drive or boston gear are not good any more it seems in that field the numbers change rather quick. Which in your case does not matter. And a lot of the gears are in stainless which to me presents a problem for 1 machineing and two brazing. Sorry a long winded answer but the short of it is call stock drive they will solve your problem.
 
Just got off the phone with SDP. I hope their products are better than their staff. After talking to two walking talking rectums I gave up.

Steve
 
they usually send you to tech those guys no give them the dia and the tooth count and the dia hole and they will find them if the have them I am sorry I never had a problem but at least you made me laugh a little today. about the rectum talkers I speak to those types on a daily basis and I thought this stuff only happens to me.
 
Art
I needed an item of which they have a small number of in stock, but are discontinuing them. Since I need a steady supply, I asked if they could point me in a direction where I might secure more of the item. From there it all went very strangely pear shaped. It was like talking to Microsoft Tech support..... plenty of perfectly correct, but totally inapplicable information. I quickly had enough of being pushed around, so I hung up the phone.... and marked the company off the list for any future purchases.

Steve
Who votes with his wallet

 
I totally agree with the talking rectums post.Why is it that loads of companies go to all the trouble of manufacturing or stocking hundreds of items of merchandise only to put a complete knob in charge of selling it to people who ring up.Peanuts and monkeys spring to mind.

p.s I don't mean Boston gears or any specific company it's just a general impression I get when dealing on the phone with most stockists.If the parts are not in front of them it's too much trouble to look for them,and as for recommending anywhere else to go for items they suddenly think that they are the only supplier in the world.

voting with your wallet is a good idea

best regards Steve C.
 
I get my gears from our local bearing supply companies. They all have access to Boston Gear and also other gear manufacturers. Sometimes their supply from Boston Gear is backlogged but they can get the same gears from another company. If they don't have the gears in stock they usually can get it in two to three days. All my contacts with these local companies has been very positive. :)
 
We had the philosophy in the business I was in that "Nothing happens until someone sells something". Hence, our sales staff was top of the line. If enough buyers quit buying the business will bellyup. We had a training program called "Learning where your paycheck comes from". It emphasized that no one was needed until a sale was concluded whether you are providing products or services. Hence, everyone was very customer oriented. Golden Rule of consulting: He who has the gold makes the rules. :eek:
 
Hi Guys,

Please let's try to stay on track and help Bernd find his gears.

Best Regards
Bob
 
bernd lets talk layman's terms for a min 22 teeth straight or helical cut in what dia and the 90 teeth straight or helical cut and is it going to mate to the 22 teeth I assume what the dia of the 90 tooth. I find few people including sale people that sell gears understand all the terms I no I do not that's the one of many problems with cad program some have the gear icon and you input the numbers pressure angles what the hell is that I no what there are referring to but I do not no what number is right. anyway
 
Bernd,
Those for Bill Harris's Donkey?????????????????????????
 
georgeseal said:
Bernd,
Those for Bill Harris's Donkey?????????????????????????

Dam George your good. :big:

Yes they are. I figured I start a bit early to see if I could find a set. I bought the book at Cabin Fever. Always love those donkey engines. I now want to build one. Could never figure out how the clutch worked. Now I know.

Regards,
Bernd
 
Thank you all for the quick response. I'll check out those leads.

rleete,

I'll PM you later.

Paula,

Good info on the gears. I was going to figure it out using the formula for gears. Just didn't have the time. BTW, I used to work for a gear machine manufacturer. Still the info is helpful.

The gears are spur gears. What I posted was all the info they gave on the drawings. I'll post a pic later of what a donkey engine is for those that don't know or have ever seen one.

Again thanks for all the fast and informative info posted in less than 24 hours. You guys are great. :bow: :bow: :bow:

Rergards,
Bernd
 
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