Doug W
Hot Rolled
- Joined
- Sep 22, 2003
- Location
- Pacific NW
So I have a 2hp Grove right angle gear reducer, worm and wheel type that I am using for a project.
The output shaft needed to be reduced for my applications so I tore it apart to replace anything, bearings, seals, etc, that needed replacing.
The design uses a straight output shaft where the 2 tapered roller bearings and worm are simply press fitted. There is no shoulder, snap ring, cross pin, set screw or anything else to keep the shaft from walking out.
I know that there should be no axial force from a pulley, but still I find it odd.
Is this typical on lower power rated gearboxes?
There are 2 steel collar spacers for setting bearing preload, they fit loosely on the shaft. I am thinking of making another, a press fit and drilling and reaming for a tapered pin.
Or just make another shaft with a shoulder on it.
Other issue is the bearing caps use 0.010" thick gasket material. Seems to be unobtainable without buying yards and the 'ask for a quote' routine.
Thinking about reducing the spacer heights 0.010" each, deleting the gaskets and using RTV to achieve proper preload.
Any thoughts?
The output shaft needed to be reduced for my applications so I tore it apart to replace anything, bearings, seals, etc, that needed replacing.
The design uses a straight output shaft where the 2 tapered roller bearings and worm are simply press fitted. There is no shoulder, snap ring, cross pin, set screw or anything else to keep the shaft from walking out.
I know that there should be no axial force from a pulley, but still I find it odd.
Is this typical on lower power rated gearboxes?
There are 2 steel collar spacers for setting bearing preload, they fit loosely on the shaft. I am thinking of making another, a press fit and drilling and reaming for a tapered pin.
Or just make another shaft with a shoulder on it.
Other issue is the bearing caps use 0.010" thick gasket material. Seems to be unobtainable without buying yards and the 'ask for a quote' routine.
Thinking about reducing the spacer heights 0.010" each, deleting the gaskets and using RTV to achieve proper preload.
Any thoughts?