Where to buy shaft end seal for log splitter pump?

[s219]

So my log splitter is leaking at the end seal on the hydraulic pump. Looks like the factory did a sloppy job installing the coupler that mates with the motor, and the coupler shaft key was rubbing against the shaft end seal on the pump. Finally wore through and I lost hydraulic power yesterday due to aerated fluid, and saw a puddle on the floor this morning. Had to take pump and hoses off to diagnose the problem.

Here's a pic of the seal and the offending key:



The manufacturer doesn't sell the seal separately, so I'd need to spend $120 for a new pump. Anybody know where I could maybe locate a replacement shaft seal? It's got to be a $5-10 part at most.

The seal fits over a 1/2" shaft, and looks to press inside a 1-1/16 to 1-1/8" race, although I need to get calipers out to my barn to measure that measurement accurately. The seal is about 1/4" thick. Seal was held in place with a cir-clip.

I figure this seal is probably a standard part but I haven't seen anything online.

BTW, I have an e-mail into the manufacturer to see if they have a way to get the seal, or maybe comp me a new pump if that is the only solution. Log splitter is less than 3 years old and this is clearly an assembly defect.

 

[LD1]

Best place to search for seals by size

SKF | Online Catalog | Handbook of Seals (457010) | Parts Lookup

 

[s219]

Thanks LD1 -- those all seem to have a metal rim, whereas the one I need is rubber (with the metal internal).

Seems to be somewhat close to this one, but not 100% sure because they use mm dimensions and are only ballpark.

Rotary shaft seal OA-12.7X28.57X6.35-FPM from $15.95
| 123Bearing

I went out to the barn with my calipers, and got these measurements:

Pump Shaft: 0.5" on the nose

Outer race/bore that seal plugs into: 1.085-1.1"

Seal thickness: 0.27"

Seal inner diameter (when not stretched over shaft): 0.45"

Seal outer diameter: 1.1"

The seal seems to be a single lip design, with a spring around the lip. However, the outer part of the seal got torn up by the rotating shaft key and I can't say for sure that it wasn't double lip.

 

[4570Man]

Ordering a seal would be my last resort. I’d go to the local Napa first and if that failed the local hydraulic shop.

 

[LD1]

Thanks LD1 -- those all seem to have a metal rim, whereas the one I need is rubber (with the metal internal).

As long as dimensions are correct....it should seal.

Some have a green or red coating on the metal also. I think C-R (SKF) calls it bore-tite

 

[goeduck]

What brand splitter and pump? Some pump brands should be fairly easy to get parts for.

 

[s219]

What brand splitter and pump? Some pump brands should be fairly easy to get parts for.

Here is the pump:

Pump, 13GPM – Dirty Hand Tools

It's marked with their brand, but I would think it's a generic pump. If I could figure out the OEM then I bet seals would be easier to find.

 

[s219]

Here are some others that look sort of like the same pump:

13 GPM 2 Stage Hydraulic Log Splitter Gear Pump | RuggedMade

13 GPM 2 Stage Hydraulic Pump | 2 Stage (Log Splitter) Pumps | Hydraulic Pumps | Hydraulics | www.surpluscenter.com

Log Splitter Hydraulic Pump - 13 GPM | ToolTuff Direct

 

[ch1ch2]

It should have some number printed on the side.
There are plenty of suppliers that can get that part based on the number.
If you need help finding a supplier PM me.

 

[s219]

This seems to be the OEM for the pump:

CBNA Hi/low Gear Pumps,Wuxi Deli Hydraulics Co.,Ltd.

DLH Fluid Power Inc. – CBNA Hi/low Gear Pumps

Pump model number appears to be CBNA-10.9/3.6 , and it looks like a lot of companies use these pumps in various GPM sizes. Still haven't found a parts breakdown for the pumps themselves.