The Model 858 is a heavy duty, Stainless Steel, extremely rugged, reliable, yet compact European standard 58 mm diameter encoder, Designed for harsh factory and food industry environments. Shaft loading is no problem for the double-shielded ball bearings and their 36Kg load rating ensures a long operating life. If fitted with the optional heavy-duty shaft seal the model 758 is rated IP65. Two standard mounting options are available: Clamping Flange (20 Type) or Synchro Flange (26 Type). The Model 858 is the perfect replacement encoder for food industry, wash-down or marine environments.