For applications where magnetism is an issue, Defender has one-piece rolled Type 304 SS construction, and can take radial and axial load of 170 and 89 lb, respectively. Sliding carriage block body includes 3 hardened, 440C rollers with 2RS seals, and eccentric center roller allows for preload adjustment and smooth movement without clearance. Rail system has operating temperature range of -30 to 100°C.