Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: how long is the shaft? Is it 1 1/4 inch or 1 3/4?
Document: I took a chance that this motor would fit my current NuTone 769 fan housing although the model wasn't listed in the item description but it does fit. It is a little louder that the original motor, seems to hum louder for some reason but the fan wheel is quiet. The slightly louder hum probably puts it above the 3 somes advertised so I gave it 4 rather than 5 stars. Replacing the motor saved me a lot of work and about half the cost of replacing the entire unit.
I have a Broan 658 that is 35 years old. It has gone through 6 of these motors in that time, but it's a lot cheaper than trying to replace the whole unit in the ceiling with a new one every time. It is quiet for the first 4 years, then gets noisier over time, but never quits running. I only replace them because of the noise. It is a 1/2 hour process and saves lots of money vs buying and installing a new unit.
It works, same quality as original unit in fan, and lasts about as long (a couple of years before the bearings dry out).
Replaced these parts in a 20 year old unit. Fit perfectly. Well made, expect unit will be working for a long time to come.
Replaced a basement exhaust fan with this unit. It's been running nearly 24/7 for 4 months without any issues. A bit on the loud side, but also more powerful than the unit it replaced.
Very loud (greater than 3 scones), but it works and it effectively removes the steam from my small bathroom. The good thing is that I didn't have tear out the old unit. The install took less than 30 minutes.
The motor in this BP28 kit is a 99080166 (707-A) which, according to Broan's Replacement Parts Guide (Broan website) is a substitute for 99080522 (707-B). The shaft is shorter with a groove near the end that the fan "clips" into. However, in that position it can scrape the top of the housing simply due to runout.
I've replaced two old fan motors with this one and they both work great. They are more quiet and I've got one more to replace. Because my fans are so old, I modified this motor by shortening the motor shaft and trimming some plastic off the transformer, but it was easy to do and less expensive than buying a new fan set from the local fix-it store.
Just replaced the vent fan and motor in a roughly 28 year old Nautilus fan/light/heater (model N655). It was very easy once I found the screw that holds the fan mounting bracket/plate in place. I was at a loss until I carefully vacuumed the interior of the unit and found a single screw very near to the long bolt that holds the light and decorative grill in place. It was the same color as the mounting bracket/plate.
The new kit required mounting a somewhat flexible metal shield using two quarter inch screws that needed to be mounted into the roof of the fan assembly where they were VERY hard to reach and thread from underneath while the shield partially blocks your view. Then you must use three more quarter-inch screws to secure the fan assembly to the shield. The tabs on the shield where the screws must thread flexed around too easily and trying to line up the fan assembly holes to the shield holes was a Bi...
Answer: yes