Perfect
for retrofits where existing shafting is worn and rusted, NRG's static
shaft sleeve bushings reduce costs and installation time in rectangular
clarifiers. As an alternative to a dynamic system where sprockets
run directly on turning idler shafts, this system allows idler sprockets
to rotate freely on NRG static shaft bushings, while existing shafts
can be immobilized and reused.(On new installations, the static system
does not require bearings for the idler axles, and only fixed steel
shaft supports are needed).
Static bushings are secured to the shafts with set screws or clamps
as the sprockets rotate on the sleeve's smooth outer surface between
integral set collars. Made from corrosion resistant, self-lubricating
Nylon, NRG's split static shaft sleeves are easy to assemble, eliminating
the need for shaft and bearing replacement. Static shaft sleeve bushings
are also available in UHMW-PE material. |
| |
 |
 |
Eliminates
the need for wall bearings or sprocket collars |
|
Allow
the reuse of old shafts which have poor finishes |
|
Integral
set collars prevent lateral movement of the gear for self alignment |
| Material:
|
Lubricated
Nylon |
| Color: |
Green |
| Hardness: |
R115-120 |
|
| Size |
Required
Sprocket
Bore |
Maximum
Hardness |
A*
(in) |
B*
(in)
|
D*
(in) |
| Small |
3-3/4
inch idler |
2-15/16
inch |
4 |
6 |
4-1/2 |
| Medium |
5
inch idler |
4
inch |
4 |
6 |
6 |
| Large |
5-1/4
inch idler |
4-1/2
inch |
4 |
6 |
6
-1/2 |
| X-Large |
6
inch idler |
5-1/4
inch |
4 |
6 |
7 |
| *Longer
LTB available for non-standard sprocket sizes |
| |
|
