NUKR90 Stud Type 90x35mm Track Roller Bearing M30×1.5 Thread for Conveyor And Cam Drive Product Overview NUTR30 is a heavy‑duty yoke‑type track roller bearing with double‑row full‑complement cylindrical rollers and a thick‑walled outer ring. It delivers outstanding radial load‑bearing capacity and can withstand moderate axial loads caused by misalignment. Double‑sided labyrinth seals prevent dust contamination, and the built‑in lubrication hole supports relubrication, making