Built-In Freewheels DC
2Pages

Built-In Freewheels ype DC is a sprag type freewheel cage without i ­nner or outer races. It must be installed in a design­ p ­ roviding races, bearing support for axial and radial loads, ­ubrication and sealing. The DC type version-N l accepts all types of lubricants currently used in the power transmission equipement. 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. S ­ urface 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.

NOTES 1 Tmax = 2 X TKN » Refer to Selection page 7 to 11 2) Inner race overruns 3) Outer race overruns *) The inner cage centering flange is on the opposite side **) Extension of tolerance to ± 0,013 permissible Other dimensions on request » Refer to mounting and maintenance instructions page 12 to 13