VRIJLOOPLAGER DC7221B-N STIEBER

Product description:

• Type DC is a sprag type freewheel cage without inner or outer races.
• It must be installed in a design providing races, bearing support for axial and radial loads, lubrication and sealing
• The DC type version-N accepts all types of lubricants currently used in the power transmission equipment
• The sprag space tolerance must not be exceeded
• Inner and outer races must both have a minimum plain width "e", without any recess, to ensure the freewheel functions correctly as shown on following pages
• Alternatively, races can be made in case hardened steel shafts, or housings, to the specification below
• Surface hardness of the finished part should be HRC 60 to 62, for a depth of 0,6 mm minimum
• Core hardness to be HRC35 to 45
• Surface roughness not to exceed 22CLA
• Maximum taper between races: 0,007 mm for 25 mm width