Randalthor
Cast Iron
- Joined
- Mar 7, 2018
- Location
- Kansas City
I've not fit this type of split race bearing before and seeking some advice please.
It's a thrust bearing with an interference fit. It's a throwout bearing which goes on a tractor. It has a split inner race. (pictures attached) The inner race where it fits on the housing measures 2.497". The other inner race (which doesn't contact the housing) is 0.080" larger. The O.D of the round part of the housing, where the bearing fits, measures 2.501"
The shop manual says to use a special tool to press fit the bearing, but the tool is not available. I've not been able to find any pictures of what the tool looks like. The book warns to use the tool, else it will "shorten the life of the bearing".
I'm assuming they don't want a regular drift used, rather I'm guessing their drift only has a 0.040" lip thickness to slip down inside the larger diameter inner race to make contact with the edge of the smaller diameter inner race?
What I'm wondering is a drift with a wall that thin, will it even make good contact and stay on the edge of the smaller diameter inner race, when pressing it on?
Also wondering if it's possible to fit the bearing without tools using a hot mount (i.e. heat the bearing to 150F and put the housing in the freezer)? Mounting the bearing to the housing with 0.004" interference seems like a lot of interference to overcome using no tools, even with a hot mount, but I again I don't have any experience with this type of bearing. Any thoughts?
Lastly, I'm wondering if using a bearing separator would work? There is a small gap between the two races of the bearing (on the outside of the bearing). I'm wondering if fixing a bearing separator in that gap and using it to press the bearing on (i.e. using the bearing separator to take the press force and deliver it to the correct inner race)? Thoughts?
Attached are the pics. The bearing is a Koyo bearing CTS54SA.
Thanks for any advice.
It's a thrust bearing with an interference fit. It's a throwout bearing which goes on a tractor. It has a split inner race. (pictures attached) The inner race where it fits on the housing measures 2.497". The other inner race (which doesn't contact the housing) is 0.080" larger. The O.D of the round part of the housing, where the bearing fits, measures 2.501"
The shop manual says to use a special tool to press fit the bearing, but the tool is not available. I've not been able to find any pictures of what the tool looks like. The book warns to use the tool, else it will "shorten the life of the bearing".
I'm assuming they don't want a regular drift used, rather I'm guessing their drift only has a 0.040" lip thickness to slip down inside the larger diameter inner race to make contact with the edge of the smaller diameter inner race?
What I'm wondering is a drift with a wall that thin, will it even make good contact and stay on the edge of the smaller diameter inner race, when pressing it on?
Also wondering if it's possible to fit the bearing without tools using a hot mount (i.e. heat the bearing to 150F and put the housing in the freezer)? Mounting the bearing to the housing with 0.004" interference seems like a lot of interference to overcome using no tools, even with a hot mount, but I again I don't have any experience with this type of bearing. Any thoughts?
Lastly, I'm wondering if using a bearing separator would work? There is a small gap between the two races of the bearing (on the outside of the bearing). I'm wondering if fixing a bearing separator in that gap and using it to press the bearing on (i.e. using the bearing separator to take the press force and deliver it to the correct inner race)? Thoughts?
Attached are the pics. The bearing is a Koyo bearing CTS54SA.
Thanks for any advice.