Drawn Cup Needle Roller Clutches FC20

Descriptions

R&B bearings will support you to spot the difference in the example of HF 101612 and FC 10 as follows:
1: HF is flat end needle roller; while FC is pointed end needle roller;
2: HF is light series, while FC is heavy duty series one way bearing. It means FC will have higher torque rating than HF, which is the most important factor for one way bearing.
3: There is only one needle roller in each cage window for HF one way bearing; while multi-roller in each cage window for FC one way bearing.
4: Single roller per stainless steel spring for HF one way bearing; while multi-roller per stainless steel spring for FC one way bearing.
 
one-way needle roller bearing
HFL series drawn cup one-way needle roller bearing has two supporting needle bearing and one roller clutch which shares a punching outer ring, and can be used as a special space-saving support. The two supporting bearing are assembled on both sides of the roller clutch, and endure the radial load. The supporting needle bearing is composed of plastic cage and needles.
Main features: the unidirectional movement, reverse lock; the high conversion frequency and high conversion accuracy.

SPECIAL NOTES
? HFL series has two integral radial bearings arranged on both sides of needle roller clutch. They can therefore support radial forces in particularly space-saving bearing arrangements. 
? Plastic springs (HFL...KF) are available for some sizes. 
? Partially knurled outer ring (HFL...R) is available upon request. 
? A special tool is suggested when assembling the clutch and bearing assembly. For details please contact our engineers. 
? Only after the clutch and bearing assembly has been pressed into the hole of the housing, the drawn thin-walled outer ring could then obtain its final dimension and geometric accuracy. 
? The transmissible torque and the stresses which can be taken by the housing are subject to the material and the wall thickness of the housing, and such data is needed upon enquiry. 
? The clutch and bearing assembly can be normally used in temperature range from -30°C to 120°C. For the working environment above 70°C, oil lubrication is recommended.

Specification:
Fw=inner diameter   D=outer diameter   C=height  


Parameter list of OWC needle roller bearing

Transfer capability:
Under the conditions of using the recommended mounting tolerances, the maximum torque that can be transmitteddepends primarily on the design of the seat shell and the shaft (materials, strength, wall thickness). Only when thewall thickness of the seat shell and its material allowable stress certain requirements, the clutch can transfermoment Md.


Installation:
Should be used the assembly mandrel with Needle roller bearings, needle roller clutch pressure holing hole(installed). When the clutch side of the direction of the arrow relative to the shaft is rotated, the clutch will lock, andtherefore should be noted locking direction before installation.

Lubrication:
HF-drawn cup needle roller clutch in oil and grease lubrication. Lubricated with oil, however, before you can get thebest performance, the standard HF-Drawn Cup Clutch has been filled with lithium grease.
Performance test:

The technical requirements of the test method and the standard circle described with Needle roller bearingsdimensional inspection mandrel used nominal size to take the tolerance zone as the lower limit for the h5 shaftalong the arrow in the opposite direction in the clutch can be locked.

Mounting tolerances:
The technical requirements of the seat shell HF-Needle roller bearings, the axis of the tolerance zone h5, the surfaceroughness Ra0.2m, not less than the hardness of HRC60.

Operating temperature:
HF-drawn cup needle roller clutch lubrication properly can the temperature range of -30 ° C to +120 °C long-running,short-term up to 150 ° C Operating Temperature. Lithium Grease Run

ONE WAY BEARING APPLICATIONS

Paper moving for copiers, fax machines, paper towel dispensers, etc.
Exercise equipment
Appliances
Two-speed gearboxes
Rack indexing drives
Converters, non-return devices and transcendental clutches. 
Fishing Reels, RC Cars, RC Helis, RC Engines

INSPECTION OF ONE WAY BEARINGS
Although the outer cup of the clutch is accurately drawn from strip steel, it can go slightly out of round during heat treat. When the assembly is pressed into a ring gage or properly prepared housing of correct size and wall thickness, it becomes round and properly sized. Direct measurement of the outside diameter of a drawn cup assembly is an incorrect procedure. The proper inspection procedure is as follows:
1. Press the assembly into a ring gage of the proper size as given in the tabular data.
2. Gage the bore with the specified plug gages of the proper size, as given in the tables of dimensions.
- The locking plug is rotated to insure lockup when the clutch is operated at low limit shaft and is mounted in a high limit housing strong enough to properly size the clutch. 
- The overrun plug is rotated to ensure free over-running when the clutch is operated on a high limit shaft and is mounted in a low limit housing. 
- The go plug and no go plug insure proper size of the bearings in the clutch and bearing assemblies.