1. Product Overview The NUTR30 yoke‑type track roller bearing is double‑row full‑complement cylindrical roller unit without cage. Crowned outer ring surface runs directly on track rail, double‑sided sealing structure prevents dust and grease leakage. It can bear heavy radial load plus limited axial load, suitable for low‑medium speed heavy‑impact mechanical guide‑track conditions. It is widely used in conveyor systems, cam mechanisms and heavy‑duty automation guide assemblies