t517z's t518z's are journal bearing and they also sell them in ball.
Nearly the entire TDO range has been released journal bearing.
Turbonetics - Journal bearing
Turbonetics also use single journal and single ball in unison to cope with the weight of heavy shafts/turbines for cars making 800hp + using big singles.
Garrett also still sell nearly thier entire range in journal bearing also.
There is no difference in bearing design between trust and Garrett,
We recondition Truck turbo's
The entire Nissan UD truck series run journal bearing Garrett turbo's with no difference in journal bearing design to any other.
Not to mention nearly every other Line Haul/Detroit tuck using only journal bearing turbo's
CATERPILLAR tractors, farm machinery mainly use Schwitzer turbo's which are all journal bearing.
Holset, kkk, CUMMINGS, KOMATSU, Ragay, biagio Toyota released the ct9 ct20 ct26, hitathi ht80, kawasaki, IHI, caterpillar themselves, MTU turbosystems all use journal bearing.
Its not a fact that hot shut offs kill journal bearing as you can see there would be hundreds of thousands to even millions of cars/trucks/boats/machinery not to mention Quary machinery which all use journal bearing turbo's on trucks as large as a house would be in repair after every shift.
There are always other cotributing factors to turbo failure and for as many journal bearing failures there ARE as many ball bearing failures if the ratio of journal to ball bearing turbo's as taken into account.
As there are far more journal bearing turbo's released and sold still today than ball bearing.
We have never had a failure because of hot shut down.
We still also have not had a turbo returned to us yet due to anything journal bearing related.
hearsay?