10 mm Round 4 mm Key to 1/2 in. Round with 1/8 in. Key Shaft Adapter
Product Overview:This is a simple brass extruded adapter for the PG gearmotors. The intent of this part is to go over the PG71, 27, and 188 output shaft, making the perimeter geometry of the shaft ...Read More
Product Overview
Usage and Installation:There is a tight fit onto the shaft when installing this adapter, often to the point that the brass will peel away when pushing the adapter onto the shaft. This will help keep the part in place. When using the 1/2 in. Key Hub (am-0077a) or another 1/2 in. bore, keyed item, we suggest to press in the adapter to the hub first, and then press the hub/adapter assembly onto the shaft. When pressing on to the shaft, a bit of brass will peel away, resulting in a snug fit.
Specifications
- Bore: 10 mm (0.394 in.)
- Key: 1/8 in. x 1/8 in.
- Length: 0.75 in.
- Material: Brass
- Outside Diameter: 0.5 in.
- Product Lifecycle: discontinued, please see our <a href='/categories/shaft-adapters'>other shaft adapters</a>
- Weight: 0.018 lbs
Documents
Returns
Returns are not accepted for this product.
Recommendations
36 reviews
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Shaft adapter
Initial purchase did not meet expectations. I filed down the protruding key to fit my 1/2" diameter pully. The 10mm shaft had a flat which accommodated the shaft adapter to slide on the shaft. However when the adapter was forced on to the 10mm shaft, it made the outer 1/2" adapter diameter larger, and it would not allow the pulley to fit. I purchased the following item instead (am-0333 1.152 in. ID 0.442 in. OD 0.5 in. Brass Spacer) which provided the necessary difference in the 10mm shaft to the 1/2" pulley. I am thankful that both parts were available from Andymark, and thankful too for their prompt delivery.
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Review
haven't used it yet, but it looks useful
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"No Bueno"
"Had this item fail multiple times on our 2016 robot. Do not use! Instead use http://www.andymark.com/product-p/am-2182.htm or http://www.andymark.com/product-p/am-2088.htm"
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"Sleeve is too tight"
"Sleeve is so tight that it must be hammered on, risking damage to motor/shaft."
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Better than a sharp stick in the eye
Sleeve needs filing to make fit and we have broken two of them so far.
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Hard to install
My students had a very hard time getting this collar to fit. We had to order a second one after the first was ruined.
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Review
5 Stars
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"Doesn't fit properly"
"While the bore is 10mm, the inner keyway is a few thousandths too wide, making it useless unless you hack at it with a dremel (as one reviewer suggested) or open up the keyway on your motor shaft with an end mill. Otherwise, it beats fabbing your own from scratch. (AndyMark Response 2/9/15: The method for attaching this adapter, as listed in the product description, calls for a tight fit. This is so that the adapter is snug on the gearbox output shaft.)"
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"does not fit"
"Do not try to force the sleeve in a hub and the motor shaft at the same time! Inner key which was supposed to fit inside the pg71 shaft was way to big for the key slot and needed to be dremeled down before attempting to fit it in. Since the dremel work and filing was done by hand the sleeve became loose and caused inaccuracies in driving the motor. (AndyMark Response: We recommend using the above usage and installation method which is listed on this webpage.)"
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Review
5 Stars
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Review
5 Stars
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not the size I was hoping for
hoped this would fit from a cim motor to a standard 500 hub, but is not the internal diameter of a cim motor. (AndyMark Response: This part is designed to attached to PG motors, or any 10mm shaft, the CIM motor has a 0.313 or about 8mm shaft)
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Great Price Point - On Sale!
Stocking up on parts for next season!
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Perfect
Nicely made, works fine.
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Review
5 Stars
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"Avoid this"
"Problem is the key that fits into the motor side is not square.. it simply does not fit. Once you mash it on, it slips like crazy, and being made of brass, it shears off with ease. This does not work other than for the lightest duty applications, and not without some major adjustments, and frustration."
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Review
5 Stars
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"Don't waste your money"
"Like many other teams we purchased these hoping they would be a solution to an Andy Mark created problem, however we had no such luck. Shaft key way was undersized and adapter was oversized. We pressed the adapter on, assembled our mechanism and tested. The brass was so soft that under load it gave way causing a ton of backlash. This is an Andy Mark created problem because a 4mm key in a 10mm shaft is not a standard size. You cannot buy a broach/ bushing to create a corresponding 4mm key in a part. The only answer is this subpar adapter, or to find a sponsor with a wire EDM machine to cut some proper sized steel adapters. Please Andy Mark either redesign the output shafts on the wonderful planetary boxes or sell a steel wire EDM cut adapter."
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Arrived bent
Bent and doesn't fit the motor axle. Lousy quality.
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Review
3 Stars
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"Review"
"Having actually read the directions, we did not have a problem fitting it onto the shaft/sprocket. However we cracked about 5 of them in half. Not good under load."
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"PG71 Adapter sleeve problem"
"While the concept is good the product has provine useless. It will not attach to the Andaymark gear box. Our team has always had to remachine andymark parts to fit properly. We were hoping this has changed. However, see nothing has changed very disappointed. Should sell parts that do not need adaprts."
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Review
4 Stars
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"Poorly designed"
"Like other reviewers who actually tried this product - it didn't fit on the 10mm shaft w/ 4 mm keyway for a PG71. The reason why? Like many products on AndyMark it was poorly designed. In this case the part was machined to the correct size, then plated for absolutely no reason whatsoever making it a few thousands too large on all dimensions. This means it won't fit the 4mm key way or over the shaft. The only solution is to use sandpaper or a dremel to remove the plating and then try it. Alternately you can hammer it in place then adjust with pliers and/or heat to get it to fit pretty well. Kind of a waste for something that should work out of the box. Also $10 is a little steep. As usual, disappointing AndyMark. I will be asking for a refund."
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Review
5 Stars
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"Poor fit on internal key"
"The fit on the internal key does not allow this part to slip on. QC needs to be reworked."
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"Does not fit"
"We have bought three of these sleeves and none of them have fit. Very frustrating."
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Poor fit
While this is an essential adapter for the PG71 gearmotor, the inside key is too large to fit the key way on the motor shaft. Pressing it on spreads the adapter. The solution is to lightly file the sides of the internal key.
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This last batch didn't fit right.
I haven't talked to AndyMark about this yet...been too busy building the robot. That fact might make this review unfair. We ordered two of these sleeves and they didn't fit right. We ended up just ordering smaller ID hubs instead. We have used these in the past and they worked great then, not sure if this was a bad batch or what...Maybe it was just us. I'll call AndyMark about it when I get time.
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"This last batch didn't fit right."
"I haven't talked to AndyMark about this yet...been too busy building the robot. That fact might make this review unfair. We ordered two of these sleeves and they didn't fit right. We ended up just ordering smaller ID hubs instead. We have used these in the past and they worked great then, not sure if this was a bad batch or what...Maybe it was just us. I'll call AndyMark about it when I get time."
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Have not yet used.
3 Stars
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Review
5 Stars
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Review
STL!
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PG71 Adapter Sleeve (am-0996)
This one was worthless. does not fit gearbox shaft well at all. I would not consider as a viable spare.
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Review
The key on the adapter seems to be a little wide for the motor slot, but a force fit works.
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had a bit of trouble with the adapter
the adapter doesn't snap on to the PG71 automatically, you have to file it down so it fits properly.
