Stern Gland Identification

[SiandSue]

I have what appears to be an unusual stern gland on my narrowboat. When in the boat it has a tank attached which presumably should have some oil in it. I would like to strip it and replace bearings and seals but am reluctant before knowing a bit more about it. Can anyone help please.

[pearley]

Is that from a hydraulic drive?

[SiandSue]

No. It is a standard drive. Another shaft fits into and is keyed as you can see in the first photo. I assume because of this that the bearing shown also takes the thrust.

[hovrin]

Can't see too well from the photo but the outer bearing race seems too narrow to be a thrust surface. I suspect the bearing is a normal ball bearing designed to take radial loads only. Perhaps the other bearing is a thrust bearing?

I think you will need to strip it to find out what you have. Shouldn't be difficult - just remove the circlip and gently knock the shaft through from the other end.

 

[SiandSue]

OK. I'll give it a go and let you know how it goes.