Challenge 2 Bolt triple seal cast iron housings are made from high quality cast iron, and finished on unmachined surfaces with an electrostatic air drying paint.
Challenge 2 Bolt Flange bearing units consist of a housing with 2 holes for mounting and a ball bearing inserted within the centre of the housing. Flange bearings are designed to be mounted against a horizontal or vertical face/bulkhead etc. The housing is manufactured from cast iron with the assembly suitable for low torque applications. The 2-hole flange units are available for normal duty and medium duty. Accommodated shaft diameters range from 20mm – 3/4 inch up to 75mm – 3 inch