Looking for some very specific EP greases.
Ideally I want a >750kg weld load and 25kg timken OK load would be desirable too. It needs to be NLGI 2 or greater.
Found a few options that look great on paper but I can't actually find for sale easily, namely the "CAT desert gold" and "Timken Construction and Off-Highway".
I only have one grease on my list that fits roughly into these specs while being readily available, and that's the "Castrol SBX2". It claims >800kg weld load and 0.52mm wear scar. It has a 20.4kg timken OK load, which I think is about average for a lithium complex grease.
The calcium sulfonate greases w/ 5% moly (such as the CAT and Timken grease listed above) seem to have better scar and timken values (with lower but still high weld load) but I can't find them easily.
Penrite used to make a product that covered the >800kg weld load and 0.5mm wear scar in their NLGI 2 "Indgrease Moly HT" but for some reason they have replaced this product with an NLGI 1.5 item which has inferior specs all round. They have another >800kg grease (QCA MX9) however it has a 0.7mm wear scar result.
The application is a small radial cartridge ball bearing with very low rotational speeds, and highest loads at zero rotation. Drag and friction are of zero concern, preventing damage under load is of utmost importance. The bearing is under-specced in size for its application but restrictions mean I can't spec a bigger bearing here nor replace it with any other type.
I am very interested in knowing which test results are more important for this application - particularly the importance of minimising wear scar vs. having a higher weld load (often these do not improve together), and also the importance of the 4-ball tests vs. the Timken tests.
Thanks in advance
Ideally I want a >750kg weld load and 25kg timken OK load would be desirable too. It needs to be NLGI 2 or greater.
Found a few options that look great on paper but I can't actually find for sale easily, namely the "CAT desert gold" and "Timken Construction and Off-Highway".
I only have one grease on my list that fits roughly into these specs while being readily available, and that's the "Castrol SBX2". It claims >800kg weld load and 0.52mm wear scar. It has a 20.4kg timken OK load, which I think is about average for a lithium complex grease.
The calcium sulfonate greases w/ 5% moly (such as the CAT and Timken grease listed above) seem to have better scar and timken values (with lower but still high weld load) but I can't find them easily.
Penrite used to make a product that covered the >800kg weld load and 0.5mm wear scar in their NLGI 2 "Indgrease Moly HT" but for some reason they have replaced this product with an NLGI 1.5 item which has inferior specs all round. They have another >800kg grease (QCA MX9) however it has a 0.7mm wear scar result.
The application is a small radial cartridge ball bearing with very low rotational speeds, and highest loads at zero rotation. Drag and friction are of zero concern, preventing damage under load is of utmost importance. The bearing is under-specced in size for its application but restrictions mean I can't spec a bigger bearing here nor replace it with any other type.
I am very interested in knowing which test results are more important for this application - particularly the importance of minimising wear scar vs. having a higher weld load (often these do not improve together), and also the importance of the 4-ball tests vs. the Timken tests.
Thanks in advance
