DRAWN CUP ROLLER CLUTCHES
Drawn cup roller clutch transmits torque between shaft and housing in one direction and allows free overrun in the opposite direction. When transmitting torque, either the shaft or the housing can be the input member. Applications are generally described as indexing, backstopping or overrunning.
IDENTIFICATION
The prefix letters in the designation of the drawn cup roller clutches and drawn cup roller clutch and bearing assemblies denote whether these are manufactured to metric or inch nominal dimensions. Designation codes for clutches and clutch and bearing assemblies with metric nominal dimensions begin with the letter “F.” Designation codes for clutches and clutch and bearing assemblies with inch nominal dimensions begin with the letter “R.” The basic types of clutches and clutch and bearing assemblies are listed below:
DIMENSIONS
Model: RCB162117
Type: One-Way Inch Needle Roller Bearings
Size: 25.4*33.338*26.99 mm
Quantity: 2 Pcs
INCH SERIES TYPES
RC Regular clutch, single roller per integral spring.
RC-FS Regular clutch, single roller per stainless steel spring.
RCB Regular clutch and bearing assembly, single roller per integral spring.
RCB-FS Regular clutch and bearing assembly, single roller per stainless steel spring.
APPLICATION
Clutches and clutch and bearing assemblies are successfully applied in a wide range of commercial products where indexing, backstopping and overrunning operations must be performed reliably. The sketches on these pages illustrate some of the many possible uses.
When applying the clutch-only unit, separate bearings on each side of the clutch are required to position the shaft concentrically with the housing, and to carry the radial loads during overrun. Drawn cup needle roller bearings, with the same radial section as the clutch, should be used in the through-bored housings for simplicity and economy. Two clutches can be used side by side for greater torque capacity.
Where the radial loads are light, the clutch and bearing assembly can be used without additional support bearings. This reduces the overall assembly width, the number of stocked and ordered parts and assembly costs, as well.