1. Catalogs
  2. STIEBER
  3. Built-In Freewheels DC

Built-In Freewheels DC

Built-In Freewheels DC

Built-In Freewheels DC

Product catalog summary
Overview: The document provides technical specifications and guidelines for the installation and use of Stieber Clutch's Type DC built-in freewheels. These are sprag type freewheel cages that require external races and support for proper functioning.
Specifications:
  • The DC type freewheel does not include inner or outer races and must be installed in a design that provides these components.
  • Surface hardness for the races should be HRC 60 to 62 with a minimum depth of 0.6 mm, and core hardness should be HRC 35 to 45.
  • Surface roughness should not exceed 22 CLA, and the maximum taper between races is 0.007 mm for a 25 mm width.
Procedures:
  • Ensure that the sprag space tolerance is not exceeded for optimal performance.
  • Races can be made from case-hardened steel shafts or housings according to specified standards.
Technical Data:
  • The document includes a detailed table listing various DC models with specifications such as overrunning speeds, sprag space, number of clips and sprags, and weight.
  • Each model has specific dimensions and tolerances that must be adhered to during installation.
Recommendations:
  • Refer to the selection pages (7 to 11) for choosing the appropriate model based on application requirements.
  • Consult mounting and maintenance instructions on pages 12 to 13 for proper installation and upkeep.
Notes:
  • Inner and outer races have specific overrunning conditions.
  • Some models allow for an extension of tolerance to ±0.013 mm.
See more

Catalog excerpts

Built-In Freewheels DC-1

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.

 Open the catalog to page 1
Built-In Freewheels DC-2

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

 Open the catalog to page 2
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.