Bearing Up.
According to your sketch the rollers have internal bearings. AKA dead drums.
The roller diameter will have to match the internal diameter of the brush.
The bearing OD will have to match the roller tube ID.
The bearing rating will have to be adequate for the load & speed imposed.
Select the bearing with the largest bore.
That's your shafting diameter.
Both bearings should be the same.
End float is taken up in the drive chain, or belt, fleeting allowance.
Ignore the driving forces. ■
Conveyor Shaft Design
thank u louispanjang;
iam understand these basics, but the problem is there are some variables faced me and iam cannot solve it such as
shaft diameter required to handle the load(1.5 kg) and the diameter that should handle bearing and sprockets on each side of the shaft
the picture in attachment can describe what i mean
????????????????????? how it can be solved???????????????????????
Attachments
shaftJPEG:forum_attachments/file_container/shaft.jpg (BMP)
■
Vegetables Scrubbed, Julienned, With A Bit Of Vinagrette
As Louis has stated the shaft diameter will depend on the inner bore of the brush holders inside diameter.
You have no steps or shoulders according to your drawing.
The bearings will have locking collars and keyways to match the keyways cut into the shaft ends to maintain the brushes middle position and lock it in place with allen set screws. be sure to specify that a dimple is drilled into the key stock to help retain the set screw.
Also use blue Loc-Tite as you may need to remove the entire brush drum or brush holders to replace the brush heads.
The brush will need to have locking rings/taper locks to clamp the brush pulley inner bore to the driven shaft for the brush.
Also the bearings need to be specified to have vegetable food grade grease for lubrication.
Using spring pressure grease cups is always always a good idea as they only delver grease in a metered amount when the bearing is moving- the bearing must be filled with vegetable grease first prior to installing the filled grease cups.
lzaharis ■
Conveyor Shaft Design
hi
iam want your assistance quickly becuase iam have agraduated project that is washing vegetables machine contains a conveyor of brushes for cleaning vegetablesby. our conveyor properties
conveyor lenght is 100 cm
consist of 10 brushes each of 4 inch diameter and
each one handles max load of 1.5 kg over
the problem
how can i
1- calculate the diameter of the shaft and it's lenght.
2- and when inserting bearing on each side of the shaft, the shaft will has unique diameter or there two diameter of shaft.
there is a picture below that shows the process.
iam dont have any information about conveyors please help me soon or contact me on my email
hoppy86-w@hotmail.com
Attachments
conveyorJPEG:forum_attachments/file_container/conveyor_4.jpg (BMP)
■